The information for this document has been drawn from a number of sources, mainly from an old edition of Lange's Handbook of Chemistry, and Orsino Smith's "Identification and Qualitative Chemical Analysis of Minerals." This is also available free of charge in the form of an access database table. Contact: jesse@lava.net, please include "Mineral Test" in the title of the email so it will get through my spam filter. I hope there aren't too many errors here. If you find one, please let me know so I can fix it.

BE SAFE! Warnings have been included where hazards have been identified, however these should not be considered to be complete. Nitric acid, for example emits dangerous oxides of nitrogen when added to virtually any material. Play it safe. Always use a work area that's ventillated well enough to ensure that no one will be breathing the fumes. ALL ACIDS ARE DANGEROUS! Hydrofluoric acid, also called hydrogen fluoride (HF), is especially dangerous. It penetrates skin like kleenex! If it contacts your skin, even for a second, it's a medical emergency requiring immediate action. Be aware that people die from ignoring warnings about chemicals.

Solubility Data on 646 Common and Not So Common Minerals

Name Water HCl HNO3 H2SO4 HF Other Solvents Insoluble in Mineral Acids Note Warning Abukumalite Insoluble Soluble Soluble Soluble Soluble No Acanthite Insoluble Insoluble Soluble Insoluble Insoluble No May evolve hydrogen sulfide or other poisonous gas in the presence of acids. Acmite Insoluble Soluble Insoluble Insoluble Insoluble No Actinolite Insoluble Insoluble Not Tested Not Tested Not Tested No Adamite Insoluble Soluble Not Tested Not Tested Not Tested No Aeschynite Insoluble Insoluble Insoluble Insoluble Insoluble Yes Aguilarite Insoluble Not Tested Not Tested Not Tested Not Tested Unknown Aikinite Insoluble Not Tested Soluble with decomposition Not Tested Not Tested No May evolve hydrogen sulfide or other poisonous gas in the presence of acids. Ajkaite Insoluble Insoluble Insoluble Insoluble Insoluble Yes Alabandite Insoluble Soluble Insoluble Insoluble Not Tested No May evolve hydrogen sulfide or other poisonous gas in the presence of acids. Albertite Insoluble Not Tested Not Tested Not Tested Not Tested Turpentine No Albite Insoluble Insoluble Insoluble Insoluble Not Tested Yes Aldanite Insoluble Not Tested Not Tested Not Tested Not Tested Unknown Allanite Insoluble Soluble with gel residue Insoluble Insoluble Not Tested No Silicon dioxide remains as an insoluble gel Allophane Insoluble Soluble with gel residue Not Tested Not Tested Not Tested No Almandite Insoluble Insoluble Insoluble Insoluble Insoluble Yes Alpha-sepiolite Insoluble Soluble with gel residue Soluble with gel residue Soluble with gel residue Soluble No Altaite Insoluble Not Tested Soluble Not Tested Not Tested No Aluminite Insoluble Soluble Soluble Soluble Soluble No Alunite Insoluble Insoluble Insoluble Soluble Not Tested No Alunogen Soluble Not Tested Not Tested Not Tested Not Tested No Alvite Insoluble Insoluble Insoluble Insoluble Not Tested Yes Amalgam Insoluble Not Tested Soluble Not Tested Not Tested No Ambatoarinite Insoluble Soluble Not Tested Not Tested Not Tested No Amblygonite Insoluble Soluble Insoluble Soluble Not Tested Yes May evolve fluorine or hydrogen fluoride in the presence of acid. Ammoniojarosite Insoluble Soluble Not Tested Not Tested Not Tested No Ammonium Nitrate Soluble Not Tested Not Tested Not Tested Not Tested No Ampangabeite Insoluble Soluble Not Tested Not Tested Not Tested No Amphibole Insoluble Insoluble Insoluble Insoluble Not Tested Yes Group Name. See specific minerals Amplygonite Insoluble Soluble Insoluble Insoluble Not Tested No Analcite Insoluble Soluble with gel residue Insoluble Insoluble Not Tested No Silicon dioxide remains as an insoluble gel Anatase Insoluble Insoluble Insoluble Soluble if Heated Not Tested No Soluble in hot sulfuric acid or potassium bisulfate fusion or alkalai hydroxides or carbonates Anauxite Insoluble Slightly Soluble Not Tested Not Tested Not Tested No with decomposition Ancylite Insoluble Soluble Soluble Soluble Soluble No Andalusite Insoluble Insoluble Insoluble Insoluble Not Tested Yes Andersonite Soluble Not Tested Not Tested Not Tested Not Tested No Andesine Insoluble Insoluble Insoluble Insoluble Not Tested Yes Andradite Insoluble Soluble Insoluble Insoluble Not Tested No Silicon dioxide remains as an insoluble gel Anglesite Insoluble Insoluble Slightly Soluble Insoluble Not Tested No Anhydrite Insoluble Soluble Insoluble Insoluble Not Tested No Ankerite Insoluble Soluble Soluble Soluble Not Tested No Evolves carbon dioxide Annabergite Insoluble Soluble Insoluble Insoluble Not Tested No Anorthite Insoluble Soluble with decomposition Insoluble Insoluble Not Tested No Silicon dioxide remains as an insoluble gel Anorthoclase Insoluble Insoluble Insoluble Insoluble Not Tested Yes Anthophyllite Insoluble Insoluble Insoluble Insoluble Not Tested Yes Antigorite Insoluble Soluble Insoluble Insoluble Not Tested No Silicon dioxide remains as an insoluble gel Antimony Insoluble Soluble if Heated Not Tested Not Tested Not Tested No With precipitation of SbCL3 Antlerite Insoluble Soluble Insoluble Insoluble Not Tested No Apatite Insoluble Soluble Soluble Insoluble Not Tested No May evolve fluorine or hydrogen fluoride in the presence of acid. Apophyllite Insoluble Soluble Insoluble Insoluble Not Tested No Silicon dioxide remains as an insoluble gel Aragonite Insoluble Soluble Soluble Not Tested Not Tested No Evolves carbon dioxide Arfvedsonite Insoluble Insoluble Insoluble Insoluble Not Tested Yes Argentite Insoluble Not Tested Soluble Not Tested Not Tested No Argyrodite Insoluble Not Tested Soluble with decomposition Not Tested Not Tested No May evolve hydrogen sulfide or other poisonous gas in the presence of acids. Arizonite Insoluble Insoluble Insoluble Soluble if Heated Not Tested No With decomposition Arsenic Insoluble Soluble Not Tested Not Tested Not Tested No Arsenolite Slightly Soluble Not Tested Not Tested Not Tested Not Tested No Arsenomarcasite Insoluble Not Tested Soluble with decomposition Not Tested Not Tested No Arsenopyrite Insoluble Insoluble Soluble Insoluble Not Tested No Precipitates sulfur May evolve hydrogen sulfide or other poisonous gas in the presence of acids. Asphaltum Insoluble Not Tested Not Tested Not Tested Not Tested Turpentine No Astrophyllitye Insoluble Soluble with decomposition Not Tested Not Tested Not Tested No Atacamite Insoluble Very Soluble Very Soluble Very Soluble Not Tested No Auerbachite Insoluble Not Tested Not Tested Soluble Not Tested No Augite Insoluble Insoluble Insoluble Insoluble Not Tested Yes Aurichalcite Insoluble Soluble Insoluble Insoluble Not Tested No Evolves carbon dioxide Autunite Insoluble Not Tested Soluble Not Tested Not Tested No Avicennite Insoluble Soluble Insoluble Insoluble Not Tested No Extremely Poisonous Axinite Insoluble Insoluble Insoluble Insoluble Not Tested Yes Azurite Insoluble Soluble Soluble Soluble Not Tested No Evolves carbon dioxide Babbingtonite Insoluble Insoluble Insoluble Insoluble Not Tested No Bacalite Insoluble Not Tested Not Tested Not Tested Not Tested No A type of amber Baddeleyite Insoluble Insoluble Insoluble Soluble with decomposition Not Tested No Barite Insoluble Insoluble Insoluble Soluble if heated Not Tested No Sol in hot sulfuric acid See Smith p. 148 Barylite Insoluble Insoluble Insoluble Insoluble Not Tested No Bastnasite Insoluble Insoluble Insoluble Slightly Soluble Not Tested No Bauxite Insoluble Insoluble Insoluble Insoluble Not Tested Yes Bayleyite Soluble Not Tested Not Tested Not Tested Not Tested No Bazzite Insoluble Insoluble Insoluble Insoluble Not Tested No Beckelite Insoluble Soluble Soluble Soluble Soluble No Benitoite Insoluble Insoluble Insoluble Insoluble Soluble No Bertrandite Insoluble Insoluble Insoluble Insoluble Not Tested Yes Fuse with sodium carbonate and filter. Beryllium is in the solid phase. Soluble in HCl. Beryl Insoluble Insoluble Insoluble Insoluble Not Tested Yes Berylonite Insoluble Soluble Soluble Soluble Not Tested No Berzelianite Insoluble Insoluble Soluble Insoluble Not Tested No Beta-sepiolite Insoluble Soluble with decomposition Not Tested Not Tested Not Tested No Biotite Insoluble Insoluble Insoluble Soluble Not Tested No Silicon dioxide remains as an insoluble gel. Bismutatantalite Insoluble Insoluble Insoluble Insoluble Insoluble Yes Bismuth Insoluble Insoluble Soluble Insoluble Insoluble No Bismuthinite Insoluble Insoluble Soluble if Heated Insoluble Not Tested No Bloedite Soluble Not Tested Not Tested Not Tested Not Tested No Boracite Insoluble Soluble Insoluble Insoluble Not Tested No Borax Soluble Insoluble Insoluble Insoluble Not Tested No Bornite Insoluble Insoluble Soluble Insoluble Not Tested No Precipitates sulfur Boulangerite Insoluble Soluble if Heated Insoluble Insoluble Not Tested No PbCl2 precipitates. Soluble hot. Sb separates on dilution May evolve hydrogen sulfide or other poisonous gas in the presence of acids. Bournonite Insoluble Insoluble Soluble with decomposition Insoluble Not Tested No Brannerite Insoluble Soluble Soluble Soluble Soluble No Braunite Insoluble Soluble Insoluble Insoluble Not Tested No Silicon dioxide remains as an insoluble gel HCl evolves chlorine Brazilianite Insoluble Insoluble Not Tested Not Tested Not Tested No Brewsterite Insoluble Soluble with decomposition Not Tested Not Tested Not Tested No Brochantite Insoluble Soluble Soluble Insoluble Not Tested No Broggerite Insoluble Insoluble Soluble with decomposition Not Tested Not Tested No Bromyrite Insoluble Not Tested Not Tested Not Tested Not Tested NH4OH Yes Bronzite Insoluble Insoluble Not Tested Not Tested Not Tested No Brookite Insoluble Insoluble Insoluble Insoluble Insoluble Yes Brucite Insoluble Soluble Soluble Soluble Not Tested No Calamine Insoluble Soluble Insoluble Insoluble Not Tested No Silicon dioxide remains as an insoluble gel Calaverite Insoluble Insoluble Soluble with decomposition Soluble Not Tested No Calcio-thorite Insoluble Soluble with gel residue Soluble with gel residue Soluble with gel residue Not Tested No Calcite Insoluble Soluble Soluble Soluble Not Tested No Evolves carbon dioxide Caledonite Insoluble Not Tested Slightly Soluble Not Tested Not Tested No Calomel Insoluble Insoluble Insoluble Insoluble Not Tested Aqua Regia Yes Cancrinite Insoluble Soluble Soluble Insoluble Not Tested No Evolves carbon dioxide Canfieldite Insoluble Insoluble Soluble with decomposition Not Tested Not Tested No Cappelenite Insoluble Soluble Not Tested Not Tested Not Tested No Carnallite Soluble Insoluble Insoluble Insoluble Not Tested No Carnotite Insoluble Soluble Soluble Soluble Not Tested No Caryocerite Insoluble Soluble with decomposition Not Tested Not Tested Not Tested No Cassiterite Insoluble Slightly Soluble Slightly Soluble Slightly Soluble Not Tested Yes Catapleite Insoluble Soluble Not Tested Not Tested Not Tested No Celestite Insoluble Insoluble Insoluble Insoluble Not Tested Yes Celsian Insoluble Soluble Not Tested Not Tested Not Tested No Cenosite Insoluble Soluble Not Tested Not Tested Not Tested No Cerargyrite Insoluble Insoluble Insoluble Insoluble Not Tested NH4OH Yes Cerite Insoluble Soluble with gel residue Not Tested Not Tested Not Tested No Cerussite Insoluble Insoluble Soluble Insoluble Not Tested No Evolves carbon dioxide Ceylonite Insoluble Insoluble Insoluble Slightly Soluble Not Tested No Chabazite Insoluble Soluble with decomposition Insoluble Insoluble Not Tested No Silicon dioxide remains as an insoluble gel Chalcanthite Soluble Insoluble Insoluble Insoluble Not Tested No Chalcocite Insoluble Insoluble Soluble Insoluble Not Tested No Evolves nitric oxide precipitates sulfur May evolve hydrogen sulfide or other poisonous gas in the presence of acids. Chalcomenite Insoluble Soluble Soluble Soluble Not Tested No Chalcopyrite Insoluble Insoluble Soluble with decomposition Insoluble Not Tested No Precipitates sulfur Chevkinite Insoluble Soluble with gel residue Not Tested Not Tested Not Tested No Chillagite Insoluble Soluble with decomposition Soluble with decomposition Soluble with decomposition Not Tested No Chkalovite Insoluble Soluble Soluble Soluble Soluble No Chlorapatite Insoluble Soluble Insoluble Insoluble Not Tested No Chlorite Insoluble Insoluble Insoluble Soluble Not Tested No Silicon dioxide remains as an insoluble gel. Chloritoid Insoluble Not Tested Not Tested Soluble with decomposition Not Tested No Chlormagnesite Soluble Not Tested Not Tested Not Tested Not Tested No Chromite Insoluble Insoluble Insoluble Insoluble Insoluble Yes Chrondrodite Insoluble Soluble with gel residue Insoluble Soluble if Heated Not Tested No Silicon dioxide remains as an insoluble gel May evolve hydrogen fluoride or fluorine in the presence of acid. Chrysoberyl Insoluble Insoluble Insoluble Insoluble Not Tested Yes Chrysocolla Insoluble Soluble with decomposition Soluble with decomposition Soluble with decomposition Not Tested No Chrysolite Insoluble Soluble Soluble Soluble Not Tested No Chrysotile Insoluble Soluble Insoluble Insoluble Not Tested No Silicon dioxide remains as an insoluble gel Churchite Insoluble Soluble Soluble Soluble Soluble No Cinnabar Insoluble Insoluble Soluble Insoluble Not Tested No May evolve hydrogen sulfide or other poisonous gas in the presence of acids. Clarkeite Insoluble Soluble Insoluble Insoluble Not Tested No Clausthalite Insoluble Soluble Soluble Soluble Not Tested No Clevite Insoluble Insoluble Insoluble Soluble Not Tested No Clinochlore Insoluble Insoluble Insoluble Soluble with decomposition Not Tested No Silicon dioxide remains as an insoluble gel. Clinoenstatite Insoluble Insoluble Insoluble Insoluble Not Tested No Clinohedrite Insoluble Soluble with gel residue Not Tested Not Tested Not Tested No Clinozoisite Insoluble Soluble Insoluble Insoluble Not Tested No Partially insoluble Cobaltite Insoluble Insoluble Soluble if Heated Insoluble Not Tested No Precipitates sulfur May evolve hydrogen sulfide or other poisonous gas in the presence of acids. Colemanite Insoluble Soluble Insoluble Insoluble Not Tested No Collophane Insoluble Soluble Insoluble Insoluble Not Tested No Columbite Insoluble Soluble with decomposition Insoluble Soluble with decomposition Not Tested No Silicon dioxide remains as an insoluble gel. Conichalcite Insoluble Soluble Insoluble Insoluble Not Tested No Cookeite Insoluble Insoluble Insoluble Soluble with decomposition Not Tested No Copiapite Soluble Insoluble Insoluble Insoluble Not Tested No Copper Insoluble Insoluble Soluble Insoluble Not Tested No Evolves nitric oxide Cordierite Insoluble Soluble Insoluble Insoluble Not Tested No Silicon dioxide remains as an insoluble gel Cordylite Insoluble Soluble Not Tested Not Tested Not Tested No Corundum Insoluble Insoluble Insoluble Insoluble Not Tested Yes Covellite Insoluble Insoluble Soluble Not Tested Not Tested No May evolve hydrogen sulfide or other poisonous gas in the presence of acids. Covellite Insoluble Insoluble Soluble Insoluble Not Tested No May evolve hydrogen sulfide or other poisonous gas in the presence of acids. Cristobalite Insoluble Insoluble Insoluble Insoluble Not Tested No Crocidolite Insoluble Insoluble Insoluble Insoluble Not Tested No Crocoite Insoluble Soluble Soluble Soluble Not Tested No Cryolite Insoluble Insoluble Insoluble Soluble Not Tested No May evolve hydrogen fluoride or fluorine in the presence of acid. Cryolithionite Insoluble Soluble Soluble Soluble Not Tested No May evolve hydrogen fluoride or fluorine in the presence of acid. Cuprite Insoluble Soluble Insoluble Insoluble Not Tested No Cuprotungstite Insoluble Soluble with decomposition Not Tested Not Tested Not Tested No Curite Insoluble Soluble Soluble Soluble Not Tested No Curtisite Insoluble Not Tested Not Tested Not Tested Not Tested Benzene No Danalite Insoluble Soluble with gel residue Not Tested Not Tested Not Tested No Danburite Insoluble Slightly Soluble Insoluble Insoluble Not Tested Yes with decomposition Darapskite Soluble Not Tested Not Tested Not Tested Not Tested No Datolite Insoluble Soluble with gel residue Insoluble Insoluble Not Tested No Silicon dioxide remains as an insoluble gel Delorenzite Insoluble Not Tested Not Tested Soluble with decomposition Not Tested No Descloizite Insoluble Not Tested Soluble Not Tested Not Tested No Dewindtite Insoluble Not Tested Soluble Not Tested Not Tested No Diamond Insoluble Insoluble Insoluble Insoluble Insoluble No Diaspore Insoluble Insoluble Insoluble Insoluble Not Tested Hot NaOH Yes Dickensonite Insoluble Soluble Soluble Soluble Not Tested No Diopside Insoluble Insoluble Insoluble Insoluble Not Tested Yes Dioptase Insoluble Soluble with gel residue Not Tested Not Tested Not Tested No Dolomite Insoluble Soluble if Heated Insoluble Insoluble Not Tested No Evolves carbon dioxide Dumortierite Insoluble Insoluble Insoluble Insoluble Insoluble Yes Dysanalyte Insoluble Soluble with decomposition Not Tested Not Tested Not Tested No Dyscrasite Insoluble Insoluble Soluble Insoluble Not Tested No Edingtonite Insoluble Soluble with gel residue Soluble with gel residue Soluble with gel residue Not Tested No Eglestonite Insoluble Soluble with decomposition Soluble with decomposition Soluble with decomposition Not Tested No Electrum Insoluble Not Tested Not Tested Not Tested Not Tested Aqua Regia No Eliasite Insoluble Soluble Soluble Soluble Not Tested No Embolite Insoluble Not Tested Not Tested Not Tested Not Tested NH4OH No Emmonsite Insoluble Soluble Not Tested Not Tested Not Tested No Enargite Insoluble Insoluble Soluble Insoluble Not Tested Aqua Regia No May evolve hydrogen sulfide or other poisonous gas in the presence of acids. Enelectrite Insoluble Not Tested Not Tested Not Tested Not Tested No Enstatite Insoluble Insoluble Insoluble Insoluble Not Tested Yes Epididymite Insoluble Slightly Soluble Slightly Soluble Slightly Soluble Not Tested No Epidote Insoluble Soluble Insoluble Insoluble Not Tested No Silicon dioxide remains as an insoluble gel Epistilbite Insoluble Soluble with decomposition Not Tested Not Tested Not Tested No Epsomite Soluble Insoluble Insoluble Insoluble Not Tested No Erdmannite Insoluble Soluble with gel residue Not Tested Not Tested Not Tested No Erythrite Insoluble Soluble Insoluble Insoluble Not Tested No Eschynite Insoluble Insoluble Insoluble Insoluble Insoluble No Eucairite Insoluble Insoluble Soluble if Heated Not Tested Not Tested No Euclase Insoluble Insoluble Insoluble Insoluble Not Tested No Eucolite Insoluble Soluble with gel residue Not Tested Not Tested Not Tested No Eucrasite Insoluble Not Tested Not Tested Soluble Not Tested No Eucryptite Insoluble Soluble with gel residue Not Tested Not Tested Not Tested No Eudialyte Insoluble Soluble with gel residue Not Tested Not Tested Not Tested No Eudidymite Insoluble Not Tested Not Tested Not Tested Soluble No Eulytite Insoluble Soluble with gel residue Not Tested Not Tested Not Tested No Euxenite Insoluble Insoluble Insoluble Insoluble Insoluble Yes Fairfieldite Insoluble Soluble Soluble Soluble Not Tested No Fayalite Insoluble Soluble with gel residue Insoluble Not Tested Not Tested No Ferberite Insoluble Soluble with decomposition Soluble with decomposition Soluble with decomposition Not Tested Yes Sodium Carbonate fusion dissolves tungsten in water Fergusonite Insoluble Not Tested Not Tested Soluble with decomposition Not Tested No Ferritungstite Insoluble Soluble with decomposition Soluble with decomposition Soluble with decomposition Not Tested No Fersmite Insoluble Not Tested Not Tested Slightly Soluble Not Tested No May evolve fluorine or hydrogen fluoride in the presence of acid. Fischerite Insoluble Not Tested Not Tested Soluble Not Tested No Florencite Insoluble Slightly Soluble Not Tested Not Tested Not Tested No Fluellite Insoluble Insoluble Insoluble Insoluble Not Tested No May evolve fluorine or hydrogen fluoride in the presence of acid. Fluocerite Insoluble Not Tested Not Tested Soluble Not Tested No May evolve hydrogen fluoride or fluorine in the presence of acid. Fluorapatite Insoluble Soluble Insoluble Insoluble Not Tested No Fluorite Insoluble Soluble Soluble Soluble Not Tested No May evolve hydrogen fluoride or fluorine in the presence of acid. Forsterite Insoluble Soluble Soluble Insoluble Not Tested No Silicon dioxide remains as an insoluble gel Fourmarierite Insoluble Soluble Soluble Soluble Not Tested No Franklinite Insoluble Soluble Insoluble Insoluble Not Tested No HCl evolves chlorine Freieslebenite Insoluble Slightly Soluble Not Tested Not Tested Not Tested No Fremontite Insoluble Not Tested Not Tested Slightly Soluble Not Tested No Fuchsite Insoluble Insoluble Insoluble Insoluble Not Tested No Gadolinite Insoluble Soluble with gel residue Soluble with gel residue Soluble with gel residue Not Tested No Gahnite Insoluble Insoluble Insoluble Soluble Not Tested No Galena Insoluble Soluble Soluble Insoluble Not Tested No PbCl2 separates but is sol in hot water May evolve hydrogen sulfide or other poisonous gas in the presence of acids. Garnet Insoluble Insoluble Insoluble Insoluble Not Tested Yes Group name. See specific minerals Garnierite Insoluble Soluble with decomposition Insoluble Insoluble Not Tested No Silicon dioxide remains as an insoluble gel Gay-Lussite Insoluble Soluble Soluble Soluble Not Tested No Evolves carbon dioxide Gehlenite Insoluble Soluble with gel residue Not Tested Not Tested Not Tested No Geikielite Insoluble Soluble Not Tested Not Tested Not Tested No Genthite Insoluble Soluble with decomposition Not Tested Not Tested Not Tested No Geocronite Insoluble Soluble if Heated Not Tested Not Tested Not Tested No May evolve hydrogen sulfide or other poisonous gas in the presence of acids. Gerhardite Insoluble Soluble Soluble Soluble Not Tested No Gersdorfite Insoluble Not Tested Soluble if Heated Not Tested Not Tested No with decomposition Gibbsite Insoluble Insoluble Insoluble Soluble Not Tested No Gismondine Insoluble Soluble with gel residue Not Tested Not Tested Not Tested No Glauberite Insoluble Soluble Not Tested Not Tested Not Tested No Glauconite Insoluble Soluble with decomposition Insoluble Insoluble Not Tested Yes Glaucophane Insoluble Insoluble Insoluble Insoluble Not Tested Yes Gmelinite Insoluble Soluble with decomposition Insoluble Insoluble Not Tested No Silicon dioxide remains as an insoluble gel Goethite Insoluble Soluble Insoluble Insoluble Not Tested No Gold Insoluble Insoluble Insoluble Insoluble Not Tested Aqua Regia Yes Goslarite Soluble Not Tested Not Tested Not Tested Not Tested No Graphite Insoluble Insoluble Insoluble Insoluble Not Tested Yes Greenockite Insoluble Soluble Insoluble Insoluble Not Tested No May evolve hydrogen sulfide or other poisonous gas in the presence of acids. Grossularite Insoluble Insoluble Insoluble Insoluble Not Tested No Guanovulite Soluble Not Tested Not Tested Not Tested Not Tested No Guarinite Insoluble Soluble with gel residue Not Tested Not Tested Not Tested No Gummite Insoluble Soluble Soluble Soluble Not Tested No Gypsum Insoluble Soluble Insoluble Insoluble Not Tested No Haidingerite Insoluble Not Tested Soluble Not Tested Not Tested No Hainite Insoluble Soluble with decomposition Not Tested Not Tested Not Tested No Halite Soluble Insoluble Insoluble Insoluble Not Tested No Halloysite Insoluble Soluble Insoluble Insoluble Not Tested No Silicon dioxide remains as an insoluble gel Halotrichite Soluble Not Tested Not Tested Not Tested Not Tested No Hambergite Insoluble Insoluble Insoluble Insoluble Soluble No Hanksite Soluble Not Tested Not Tested Not Tested Not Tested No Hannayite Insoluble Slightly Soluble Not Tested Not Tested Not Tested No Hardystonite Insoluble Soluble with gel residue Not Tested Not Tested Not Tested No Harmotome Insoluble Soluble with decomposition Insoluble Insoluble Not Tested No Hatchettolite Insoluble Insoluble Insoluble Insoluble Not Tested Yes Hauerite Insoluble Soluble Not Tested Not Tested Not Tested No May evolve hydrogen sulfide or other poisonous gas in the presence of acids. Hausmannite Insoluble Soluble Insoluble Insoluble Not Tested No HCl evolves chlorine Hauynite Insoluble Soluble Not Tested Not Tested Not Tested No Hedenbergite Insoluble Insoluble Not Tested Not Tested Not Tested No Heliodor Insoluble Insoluble Insoluble Insoluble Not Tested No Hellandite Insoluble Soluble Not Tested Not Tested Not Tested No Helvite Insoluble Soluble Not Tested Not Tested Not Tested No May evolve hydrogen sulfide or other poisonous gas in the presence of acids. Hematite Insoluble Soluble Insoluble Insoluble Not Tested No Hemimorphite No Soluble with gel residue Soluble with gel residue Soluble with gel residue Not Tested No Hercynite Insoluble Insoluble Insoluble Insoluble Not Tested Yes Herderite Insoluble Soluble Soluble Soluble Not Tested No Hessite Insoluble Soluble Not Tested Not Tested Not Tested No Heulandite Insoluble Soluble Insoluble Insoluble Not Tested No Hielmite Insoluble Insoluble Insoluble Insoluble Not Tested Yes Hogbomite Insoluble Insoluble Insoluble Insoluble Not Tested Yes Homilite Insoluble Soluble with gel residue Not Tested Not Tested Not Tested No Hopeite Insoluble Soluble Soluble Soluble Not Tested No Hornblende Insoluble Insoluble Insoluble Insoluble Not Tested Yes May evolve fluorine or hydrogen fluoride in the presence of acid. Hubnerite Insoluble Soluble with decomposition Not Tested Not Tested Not Tested No Hueynite Insoluble Soluble Insoluble Insoluble Not Tested No Hyalophane Insoluble Insoluble Insoluble Insoluble Not Tested Yes Hydromagnesite Insoluble Soluble Soluble if Heated Soluble if Heated Not Tested No Evolves carbon dioxide Hydrothorite Insoluble Soluble if Heated Soluble if Heated Soluble if Heated Not Tested No Hydrozincite Insoluble Soluble Insoluble Insoluble Not Tested No Evolves carbon dioxide Hypersthene Insoluble Soluble Insoluble Insoluble Not Tested No Idocrase Insoluble Soluble with decomposition Not Tested Not Tested Not Tested No Ilmenite Insoluble Soluble Insoluble Insoluble Not Tested No Ilvaite Insoluble Soluble with gel residue Insoluble Insoluble Not Tested No Silicon dioxide remains as an insoluble gel Iridosmine Insoluble Not Tested Not Tested Not Tested Not Tested Aqua Regia No Iron Insoluble Soluble Not Tested Not Tested Not Tested No Jadeite Insoluble Insoluble Insoluble Insoluble Not Tested Yes Jamesonite Insoluble Soluble if Heated Insoluble Insoluble Not Tested No PbCl2 precipitates. Soluble hot. Sb separates on dilution May evolve hydrogen sulfide or other poisonous gas in the presence of acids. Jarosite Insoluble Soluble Insoluble Insoluble Not Tested No Jeffersite Insoluble Soluble with decomposition Insoluble Insoluble Not Tested No Johannite Soluble Soluble Soluble Soluble Not Tested No Johnstrupite Insoluble Soluble Not Tested Not Tested Not Tested No Kainite Soluble Insoluble Insoluble Insoluble Not Tested No Kalinite Soluble Not Tested Not Tested Not Tested Not Tested No Kaolinite Insoluble Soluble with decomposition Insoluble Insoluble Not Tested Yes Kasolite Insoluble Soluble Soluble Soluble Not Tested No Silicon dioxide remains as an insoluble gel. Kermesite Insoluble Not Tested Not Tested Not Tested Not Tested No May evolve hydrogen sulfide or other poisonous gas in the presence of acids. Kernite Soluble Insoluble Insoluble Insoluble Not Tested No Kieserite Soluble Not Tested Not Tested Not Tested Not Tested No Knopite Insoluble Not Tested Not Tested Not Tested Soluble No Kolbeckite Insoluble Slightly Soluble Slightly Soluble Slightly Soluble Not Tested No Koppite Insoluble Not Tested Not Tested Soluble with decomposition Not Tested No Kyanite Insoluble Insoluble Insoluble Insoluble Not Tested Yes Laavenite Insoluble Slightly Soluble Not Tested Not Tested Not Tested No Labradorite Insoluble Slightly Soluble Not Tested Not Tested Not Tested No Slightly attacked by hot HCl Lanarkite Insoluble Slightly Soluble Slightly Soluble Slightly Soluble Not Tested No Slightly soluble in dilute acids Langite Insoluble Soluble Not Tested Not Tested Not Tested No Lanthanite Insoluble Soluble Soluble Soluble Not Tested No Lanthinite Insoluble Soluble Soluble Soluble Not Tested No Larsenite Insoluble Not Tested Soluble Not Tested Not Tested No Larsenite Insoluble Not Tested Soluble Not Tested Not Tested No Latrappite Insoluble Insoluble Insoluble Insoluble Not Tested Yes try potassium bisulfate fusion Laumontite Insoluble Soluble with gel residue Insoluble Insoluble Not Tested No Silicon dioxide remains as an insoluble gel Laurite Insoluble Insoluble Insoluble Insoluble Not Tested No Lavenite Insoluble Slightly Soluble Not Tested Not Tested Not Tested No Lawsonite Insoluble Insoluble Insoluble Insoluble Not Tested No Lazulite Insoluble Insoluble Insoluble Insoluble Not Tested Yes Lazurite Insoluble Soluble Insoluble Insoluble Not Tested No May evolve hydrogen sulfide or other poisonous gas in the presence of acids. Lead Insoluble Not Tested Slightly Soluble Not Tested Not Tested No Leadhillite Insoluble Not Tested Soluble Not Tested Not Tested No Lecontite Soluble Not Tested Not Tested Not Tested Not Tested No Lepidolite Insoluble Soluble Insoluble Insoluble Not Tested No Incomplete dissolution. Silicon dioxide remains as an insoluble gel Lepidomelane Insoluble Soluble with gel residue Not Tested Not Tested Not Tested No Leucite Insoluble Soluble with decomposition Insoluble Insoluble Not Tested No Leucophanite Insoluble Not Tested Not Tested Not Tested Soluble No May evolve fluorine or hydrogen fluoride in the presence of acid. Leucosphenite Insoluble Not Tested Not Tested Not Tested Soluble with decomposition No Levynite Insoluble Soluble with gel residue Soluble with gel residue Soluble with gel residue Not Tested No Lewisite Insoluble Insoluble Insoluble Insoluble Not Tested No Libethinite Insoluble Not Tested Soluble Not Tested Not Tested No Limonite Insoluble Soluble Insoluble Insoluble Not Tested No Linarite Insoluble Not Tested Slightly Soluble Not Tested Not Tested No Linnaeite Insoluble Not Tested Soluble Not Tested Not Tested No Lithiophyllite Insoluble Soluble Insoluble Insoluble Not Tested No Loellingite Insoluble Not Tested Soluble Not Tested Not Tested No Lorandite Insoluble Not Tested Soluble Not Tested Not Tested No May evolve hydrogen sulfide or other poisonous gas in the presence of acids. Lorenzenite Insoluble Insoluble Not Tested Not Tested Not Tested No Loweite Soluble Not Tested Not Tested Not Tested Not Tested No Ludwigite Insoluble Soluble Not Tested Not Tested Not Tested No Mackintoshite Insoluble Slightly Soluble Slightly Soluble Slightly Soluble Not Tested No Magnesite Insoluble Soluble if Heated Insoluble Insoluble Not Tested No Evolves carbon dioxide Magnetite Insoluble Soluble Insoluble Insoluble Not Tested No Malachite Insoluble Soluble Soluble Soluble Not Tested No Evolves carbon dioxide Manandonite Insoluble Not Tested Not Tested Soluble with decomposition Not Tested No Manganite Insoluble Soluble Insoluble Insoluble Not Tested No HCl evolves chlorine Manganosite Insoluble Soluble Soluble Soluble Not Tested No Manganotantalite Insoluble Insoluble Insoluble Insoluble Not Tested No Marcasite Insoluble Insoluble Soluble Insoluble Not Tested No Precipitates sulfur May evolve hydrogen sulfide or other poisonous gas in the presence of acids. Margarite Insoluble Soluble with decomposition Insoluble Insoluble Not Tested No Silicon dioxide remains as an insoluble gel Mascagnite Soluble Not Tested Not Tested Not Tested Not Tested No Matlockite Insoluble Not Tested Soluble if Heated Not Tested Not Tested No Mauzeliite Insoluble Insoluble Insoluble Insoluble Not Tested Yes Medjidite Insoluble Soluble Soluble Soluble Not Tested No Melanocerite Insoluble Soluble with decomposition Not Tested Not Tested Not Tested No Melanterite Soluble Insoluble Insoluble Insoluble Not Tested No Meliphanite Insoluble Insoluble Insoluble Insoluble Not Tested No Mellite Soluble with decomposition Not Tested Not Tested Not Tested Not Tested No Decomposes in hot water Melonite Insoluble Not Tested Soluble Not Tested Not Tested No Mendipite Insoluble Not Tested Soluble Not Tested Not Tested No Mercury Insoluble Insoluble Soluble Insoluble Not Tested No Evolves nitric oxide Mesolite Insoluble Soluble with gel residue Not Tested Not Tested Not Tested No Metatorbernite Insoluble Not Tested Soluble Not Tested Not Tested No Microcline Insoluble Insoluble Insoluble Insoluble Not Tested Yes Microlite Insoluble Insoluble Insoluble Soluble with decomposition Not Tested No May evolve fluorine or hydrogen fluoride in the presence of acid. Milarite Insoluble Insoluble Insoluble Insoluble Not Tested Yes Millerite Insoluble Not Tested Soluble Not Tested Not Tested No May evolve hydrogen sulfide or other poisonous gas in the presence of acids. Mimetite Insoluble Insoluble Soluble Insoluble Not Tested No Mirabilite Soluble Insoluble Insoluble Insoluble Not Tested No Moissanite Insoluble Insoluble Insoluble Insoluble Insoluble Yes Molybdenite Insoluble Insoluble Soluble with decomposition Insoluble Not Tested No May evolve hydrogen sulfide or other poisonous gas in the presence of acids. Monazite Insoluble Slightly Soluble Insoluble Insoluble Not Tested No Monticellite Insoluble Soluble with gel residue Insoluble Insoluble Not Tested No Mosandrite Insoluble Soluble Not Tested Not Tested Not Tested No May evolve fluorine or hydrogen fluoride in the presence of acid. Muscovite Insoluble Insoluble Insoluble Insoluble Not Tested Yes May evolve fluorine or hydrogen fluoride in the presence of acid. Nadorite Insoluble Soluble Not Tested Not Tested Not Tested No Nagatelite Insoluble Soluble Not Tested Not Tested Not Tested No Narsarsukite Insoluble Insoluble Insoluble Insoluble Soluble No May evolve fluorine or hydrogen fluoride in the presence of acid. Natratite Soluble if heated Not Tested Not Tested Not Tested Not Tested No Natrolite Insoluble Soluble with gel residue Soluble with gel residue Soluble with gel residue Not Tested No Silicon dioxide remains as an insoluble gel Natron Soluble Insoluble Insoluble Insoluble Not Tested No Evolves carbon dioxide Naumannite Insoluble Not Tested Slightly Soluble Not Tested Not Tested No Nephelite Insoluble Soluble with gel residue Soluble with gel residue Soluble with gel residue Not Tested No Silicon dioxide remains as an insoluble gel Neptunite Insoluble Insoluble Insoluble Insoluble Insoluble Yes Niccolite Insoluble Insoluble Insoluble Insoluble Not Tested Aqua Regia Yes Niter Soluble Insoluble Insoluble Insoluble Not Tested No Nitrobarite Soluble Not Tested Not Tested Not Tested Not Tested No Nitrocalcite Soluble Not Tested Not Tested Not Tested Not Tested No Nitromagnesite Soluble Not Tested Not Tested Not Tested Not Tested No Nivenite Insoluble Soluble Soluble Soluble Not Tested No Nohlite Insoluble Not Tested Not Tested Soluble with decomposition Not Tested No Nontronite Insoluble Soluble with gel residue Not Tested Not Tested Not Tested No Noselite Insoluble Soluble with gel residue Not Tested Not Tested Not Tested No Oligioclase Insoluble Insoluble Insoluble Insoluble Not Tested Yes Olivenite Insoluble Insoluble Soluble Insoluble Not Tested No Olivine Insoluble Soluble Insoluble Insoluble Not Tested No Silicon dioxide remains as an insoluble gel Opal Insoluble Insoluble Insoluble Insoluble Not Tested Yes Orpiment Insoluble Insoluble Soluble Soluble Not Tested No Precipitates sulfur May evolve hydrogen sulfide or other poisonous gas in the presence of acids. Orthoclase Insoluble Insoluble Insoluble Insoluble Not Tested Yes Oxammite Soluble Not Tested Not Tested Not Tested Not Tested No Pachnolite Insoluble Not Tested Not Tested Soluble Not Tested No May evolve fluorine or hydrogen fluoride in the presence of acid. Palladium Insoluble Not Tested Not Tested Not Tested Not Tested Aqua Regia No Paraffin Insoluble Not Tested Not Tested Not Tested Not Tested Ether No Paragonite Insoluble Insoluble Not Tested Not Tested Not Tested No Paraschoepite Insoluble Not Tested Not Tested Not Tested Not Tested Aqua Regia No Parisite Insoluble Soluble Not Tested Not Tested Not Tested No May evolve fluorine or hydrogen fluoride in the presence of acid. Parsonsite Insoluble Soluble Soluble Soluble Not Tested No Pectolite Insoluble Soluble with gel residue Insoluble Insoluble Not Tested No Silicon dioxide remains as an insoluble gel Penninite Insoluble Soluble with decomposition Not Tested Soluble with decomposition Not Tested No Pennite Insoluble Soluble Insoluble Soluble Not Tested No Partially soluble in HCl. Silicon dioxide remains as an insoluble gel Pentlandite Insoluble Insoluble Soluble Insoluble Not Tested No Periclase Insoluble Soluble Soluble Soluble Not Tested No Perovskite Insoluble Not Tested Not Tested Soluble if Heated Not Tested No Decomposes in hot H2SO4 Petalite Insoluble Insoluble Insoluble Insoluble Soluble No Pharmacolite Insoluble Soluble Soluble Soluble Not Tested No Pharmacosiderite Insoluble Soluble Not Tested Not Tested Not Tested No Phenacite Insoluble Insoluble Insoluble Insoluble Not Tested Yes Phillipsite Insoluble Soluble with gel residue Insoluble Insoluble Not Tested No Silicon dioxide remains as an insoluble gel Phlogopite Insoluble Insoluble Insoluble Soluble with decomposition Not Tested No Silicon dioxide remains as an insoluble gel. May evolve fluorine or hydrogen fluoride in the presence of acid. Phoenicochroite Insoluble Soluble Not Tested Not Tested Not Tested No Phosgenite Insoluble Insoluble Soluble Insoluble Not Tested No Evolves carbon dioxide Phosphuranylite Insoluble Soluble Not Tested Not Tested Not Tested No Pickeringite Soluble Not Tested Not Tested Not Tested Not Tested No Picotite Insoluble Not Tested Not Tested Slightly Soluble Not Tested No Picromerite Soluble Not Tested Not Tested Not Tested Not Tested No Pilbarite Insoluble Soluble Soluble Soluble Not Tested No Pitchblende Insoluble Slightly Soluble Soluble Soluble Soluble No Plagionite Insoluble Soluble if Heated Not Tested Not Tested Not Tested No May evolve hydrogen sulfide or other poisonous gas in the presence of acids. Platinum Insoluble Not Tested Not Tested Not Tested Not Tested Aqua Regia No Plumbogummite Insoluble Not Tested Soluble Not Tested Not Tested No Pollucite Insoluble Soluble with decomposition Soluble with decomposition Soluble with decomposition Not Tested No Polybasite Insoluble Insoluble Soluble with decomposition Insoluble Not Tested No May evolve hydrogen sulfide or other poisonous gas in the presence of acids. Polycrase Insoluble Not Tested Not Tested Soluble with decomposition Not Tested No Polydymite Insoluble Insoluble Soluble Not Tested Not Tested No May evolve hydrogen sulfide or other poisonous gas in the presence of acids. Polyhalite Slightly Soluble Insoluble Insoluble Insoluble Not Tested No Polymignite Insoluble Soluble with decomposition Soluble with decomposition Soluble with decomposition Not Tested No Porpezite Insoluble Not Tested Not Tested Not Tested Not Tested Aqua Regia No Potash Alum Insoluble Soluble with decomposition Soluble with decomposition Soluble with decomposition Not Tested No Powellite Insoluble Soluble with decomposition Soluble with decomposition Soluble with decomposition Not Tested No Prehnite Insoluble Soluble with decomposition Insoluble Insoluble Not Tested No Priceite Insoluble Soluble Not Tested Not Tested Not Tested No Prochlorite Insoluble Not Tested Not Tested Soluble if Heated Not Tested No Decomposes in hot H2SO4 Proustite Insoluble Insoluble Soluble Insoluble Not Tested No May evolve hydrogen sulfide or other poisonous gas in the presence of acids. Pseudobrookite Insoluble Not Tested Not Tested Soluble with decomposition Not Tested No Psilomelane Insoluble Soluble Insoluble Insoluble Not Tested No HCl evolves chlorine Pucherite Insoluble Soluble Not Tested Not Tested Not Tested No Pyrargyrite Insoluble Insoluble Soluble with decomposition Insoluble Not Tested No May evolve hydrogen sulfide or other poisonous gas in the presence of acids. Pyrite Insoluble Insoluble Soluble Insoluble Not Tested No Precipitates sulfur May evolve hydrogen sulfide or other poisonous gas in the presence of acids. Pyrobelonite Insoluble Not Tested Soluble Not Tested Not Tested No Pyrochlore Insoluble Not Tested Not Tested Soluble with decomposition Not Tested No May evolve fluorine or hydrogen fluoride in the presence of acid. Pyrolusite Insoluble Soluble Not Tested Not Tested Not Tested No Pyromorphite Insoluble Insoluble Soluble Insoluble Not Tested No Pyrope Insoluble Insoluble Insoluble Insoluble Not Tested No Pyrophanite Insoluble Soluble Not Tested Not Tested Not Tested No Pyrophyllite Insoluble Insoluble Insoluble Soluble with decomposition Not Tested No Slow decomposition Silicon dioxide remains as an insoluble gel. Pyroxene Insoluble Insoluble Insoluble Insoluble Not Tested Yes Group name See specific mineral Pyrrhotite Insoluble Soluble with decomposition Insoluble Insoluble Not Tested No May evolve hydrogen sulfide or other poisonous gas in the presence of acids. Quartz Insoluble Insoluble Insoluble Insoluble Soluble Yes Converts silica to silicon hexafluoride which is a gas at stp. Ralstonite Insoluble Not Tested Not Tested Soluble with decomposition Not Tested No May evolve fluorine or hydrogen fluoride in the presence of acid. Rammelsbergite Insoluble Not Tested Not Tested Not Tested Not Tested Aqua Regia No Randite Insoluble Soluble Not Tested Not Tested Not Tested No Raspite Insoluble Soluble with decomposition Not Tested Not Tested Not Tested No Realgar Insoluble Insoluble Soluble Insoluble Not Tested Caustic alkalies No Precipitates sulfur May evolve hydrogen sulfide or other poisonous gas in the presence of acids. Retzian Insoluble Soluble Soluble Soluble Not Tested No Rhabdophanite Insoluble Soluble Soluble Soluble Not Tested No Rhodium Gold Insoluble Not Tested Not Tested Not Tested Not Tested Aqua Regia No Rhodizite Insoluble Insoluble Insoluble Insoluble Insoluble Yes Rhodochrosite Insoluble Soluble if Heated Insoluble Insoluble Not Tested No Evolves carbon dioxide Rhodonite Insoluble Slightly Soluble Insoluble Insoluble Not Tested No Riebeckite Insoluble Insoluble Insoluble Insoluble Not Tested No Rinkite Insoluble Not Tested Not Tested Soluble with decomposition Not Tested No May evolve fluorine or hydrogen fluoride in the presence of acid. Risorite Insoluble Not Tested Not Tested Soluble Not Tested No Roeblingite Insoluble Soluble with gel residue Soluble with gel residue Soluble with gel residue Not Tested No Roosevelite Insoluble Soluble Slightly Soluble Slightly Soluble Not Tested No Roscoelite Insoluble Insoluble Insoluble Insoluble Not Tested Yes Roselite Insoluble Soluble Soluble Soluble Not Tested No Rosenhuschite Insoluble Soluble Not Tested Not Tested Not Tested No Rowlandite Insoluble Soluble with gel residue Not Tested Not Tested Not Tested No Rutherfordine Insoluble Soluble Soluble Soluble Not Tested No Rutile Insoluble Insoluble Insoluble Insoluble Not Tested Yes Safflorite Insoluble Not Tested Soluble if Heated Not Tested Not Tested No Sal Ammoniac Soluble Not Tested Not Tested Not Tested Not Tested No Samarskite Insoluble Slightly Soluble Slightly Soluble Slightly Soluble Not Tested No Partially soluble Sapphirine Insoluble Insoluble Insoluble Insoluble Not Tested No Sassolite Soluble Insoluble Insoluble Insoluble Not Tested No Scheelite Insoluble Soluble with decomposition Insoluble Insoluble Not Tested No Yellow tungstate precipitates Scheteligite Insoluble Insoluble Insoluble Insoluble Soluble No Schorlomite Insoluble Soluble with gel residue Not Tested Not Tested Not Tested No Schroekeringite Soluble Soluble Soluble Soluble Not Tested No Scolecite Insoluble Soluble with gel residue Soluble with gel residue Soluble with gel residue Not Tested No Silicon dioxide remains as an insoluble gel. Scorodite Insoluble Soluble Insoluble Insoluble Not Tested No Sellaite Insoluble Not Tested Not Tested Soluble Not Tested No May evolve hydrogen fluoride or fluorine in the presence of acid. Senaite Insoluble Not Tested Not Tested Soluble if Heated Not Tested No Sepiolite Insoluble Soluble with decomposition Insoluble Insoluble Not Tested No Silicon dioxide remains as an insoluble gel Serpentine Insoluble Soluble with decomposition Soluble with decomposition Soluble with decomposition Not Tested No Silicon dioxide remains as an insoluble gel Seybertite Insoluble Soluble with decomposition Soluble with decomposition Soluble with decomposition Not Tested No Sicklerite Insoluble Soluble Soluble Soluble Not Tested No Siderite Insoluble Soluble if Heated Insoluble Insoluble Not Tested No Evolves carbon dioxide Sillimanite Insoluble Insoluble Insoluble Insoluble Not Tested Yes Silver Insoluble Insoluble Soluble Insoluble Not Tested No Evolves nitric oxide Sincosite Insoluble Soluble Soluble Soluble Not Tested No Sipylite Insoluble Insoluble Insoluble Insoluble Not Tested Yes Sklodowskite Insoluble Soluble with gel residue Not Tested Not Tested Not Tested No Smaltite Insoluble Insoluble Soluble if Heated Insoluble Not Tested No Smithsonite Insoluble Soluble Insoluble Insoluble Not Tested No Evolves carbon dioxide Soda Niter Soluble Insoluble Insoluble Insoluble Not Tested No Sodalite Insoluble Soluble Insoluble Insoluble Not Tested No Soddyite Insoluble Soluble with gel residue Not Tested Not Tested Not Tested No Sperrylite Insoluble Slightly Soluble Not Tested Not Tested Not Tested No Spessartite Insoluble Insoluble Insoluble Insoluble Not Tested No Sphalerite Insoluble Soluble Insoluble Insoluble Not Tested No May evolve hydrogen sulfide or other poisonous gas in the presence of acids. Sphene Insoluble Not Tested Not Tested Soluble Not Tested No Spinel Insoluble Insoluble Insoluble Slightly Soluble Not Tested No Spodumene Insoluble Insoluble Insoluble Insoluble Not Tested Yes Stannite Insoluble Insoluble Soluble with decomposition Insoluble Not Tested No SnO2 separates out May evolve hydrogen sulfide or other poisonous gas in the presence of acids. Staurolite Insoluble Insoluble Insoluble Slightly Soluble Not Tested No Partially soluble Silicon dioxide remains as an insoluble gel. Steenstrupine Insoluble Soluble with decomposition Soluble with decomposition Soluble with decomposition Not Tested No Stephanite Insoluble Insoluble Soluble if Heated Insoluble Not Tested No May evolve hydrogen sulfide or other poisonous gas in the presence of acids. Stercorite Soluble if heated Not Tested Not Tested Not Tested Not Tested No Sternbergite Insoluble Not Tested Not Tested Not Tested Not Tested Aqua Regia No Stibiotantalite Insoluble Insoluble Insoluble Insoluble Soluble No Stibnite Insoluble Soluble Soluble Insoluble Not Tested No Dilution of nitric acid solution may precipitate sulfur May evolve hydrogen sulfide or other poisonous gas in the presence of acids. Stichtite Insoluble Soluble Soluble Soluble Not Tested No Stiepelmannite Insoluble Soluble with decomposition Not Tested Not Tested Not Tested No Stilbite Insoluble Soluble with decomposition Insoluble Insoluble Not Tested No Stolzite Insoluble Not Tested Soluble with decomposition Not Tested Not Tested No Strengite Insoluble Soluble Not Tested Insoluble Not Tested No Stromeyerite Insoluble Not Tested Soluble Not Tested Not Tested No May evolve hydrogen sulfide or other poisonous gas in the presence of acids. Strontianite Insoluble Soluble Insoluble Insoluble Not Tested No Evolves carbon dioxide Struvite Insoluble Soluble Soluble Soluble Not Tested No Sulfur Insoluble Insoluble Insoluble Insoluble Not Tested CS2 Yes Sussexite Insoluble Soluble Not Tested Not Tested Not Tested No Swartzite Soluble Not Tested Not Tested Not Tested Not Tested No Sylvanite Insoluble Insoluble Slightly Soluble Insoluble Not Tested Aqua Regia No Gold separates out Sylvite Soluble Insoluble Insoluble Insoluble Not Tested No Tachyhydrite Soluble Not Tested Not Tested Not Tested Not Tested No Talc Insoluble Insoluble Insoluble Insoluble Not Tested Yes Tamarugite Insoluble Insoluble Insoluble Insoluble Insoluble No Tantalite Insoluble Slightly Soluble Slightly Soluble Slightly Soluble Not Tested No Silicon dioxide remains as an insoluble gel. Tantalum Insoluble Not Tested Not Tested Not Tested Soluble No Tapiolite Insoluble Slightly Soluble Slightly Soluble Slightly Soluble Not Tested No Tellurium Insoluble Not Tested Not Tested Soluble if Heated Not Tested No Tengerite Insoluble Soluble Soluble Soluble Not Tested No Tennantite Insoluble Not Tested Soluble with decomposition Not Tested Not Tested No May evolve hydrogen sulfide or other poisonous gas in the presence of acids. Tenorite Insoluble Soluble Not Tested Not Tested Not Tested No Tetradymite Insoluble Soluble Not Tested Not Tested Not Tested No Tetrahedrite Insoluble Insoluble Soluble with decomposition Insoluble Not Tested No Thenardite Soluble Insoluble Insoluble Insoluble Not Tested No Thermonatrite Soluble Not Tested Not Tested Not Tested Not Tested No Thomsonite Insoluble Soluble with gel residue Insoluble Insoluble Not Tested No Silicon dioxide remains as an insoluble gel Thorianite Insoluble Not Tested Soluble Not Tested Not Tested No Thorite Insoluble Soluble with gel residue Soluble with gel residue Soluble with gel residue Not Tested No Thorogummite Insoluble Not Tested Very Soluble Not Tested Not Tested No Thorotungstite Insoluble Soluble with decomposition Soluble with decomposition Soluble with decomposition Not Tested NaOH (Sl) No Slightly soluble in NaOH Thortveitite Insoluble Insoluble Not Tested Not Tested Not Tested No Tiemannite Insoluble Not Tested Not Tested Not Tested Not Tested Aqua Regia No Tin Insoluble Soluble Not Tested Not Tested Not Tested No Titanite Insoluble Soluble Insoluble Insoluble Not Tested No Silicon dioxide remains as an insoluble gel Topaz Insoluble Insoluble Insoluble Soluble with decomposition Not Tested No Silicon dioxide remains as an insoluble gel. Torbernite Insoluble Not Tested Soluble Not Tested Not Tested No Tornebohmite Insoluble Soluble Soluble Soluble Not Tested No Tourmaline Insoluble Insoluble Insoluble Insoluble Not Tested Yes Tremolite Insoluble Insoluble Insoluble Insoluble Not Tested Yes Tridymite Insoluble Not Tested Not Tested Not Tested Not Tested Na2CO3 (Hot) No Trimerite Insoluble Soluble Not Tested Not Tested Not Tested No Triphylite Insoluble Soluble Soluble Soluble Not Tested No Triplite Insoluble Soluble Soluble Soluble Not Tested No May evolve fluorine or hydrogen fluoride in the presence of acid. Tritomite Insoluble Soluble with gel residue Not Tested Not Tested Not Tested No Troegerite Insoluble Soluble Soluble Soluble Not Tested No Trona Soluble Insoluble Insoluble Insoluble Not Tested No Evolves carbon dioxide Tschermigite Soluble Not Tested Not Tested Not Tested Not Tested No Tungstite Insoluble Insoluble Insoluble Insoluble Not Tested KOH No Turquoise Insoluble Soluble Insoluble Insoluble Not Tested No Ulexite Slightly Soluble Insoluble Insoluble Insoluble Not Tested No Ullmannite Insoluble Not Tested Soluble with decomposition Not Tested Not Tested No May evolve hydrogen sulfide or other poisonous gas in the presence of acids. Uraconite Insoluble Soluble Soluble Soluble Not Tested No Uraninite Insoluble Insoluble Soluble Soluble Not Tested No Uranochalcite Insoluble Soluble Soluble Soluble Not Tested No Uranocircite Insoluble Soluble Not Tested Not Tested Not Tested No Uranoniobite Insoluble Not Tested Soluble Soluble Not Tested No Uranophane Insoluble Soluble with gel residue Not Tested Not Tested Not Tested No Uranopilite Insoluble Soluble Soluble Soluble Not Tested No Uranospinite Insoluble Soluble Soluble Soluble Not Tested No Uranothallite Insoluble Soluble Soluble Soluble Not Tested No Uranothorite Insoluble Soluble with gel residue Not Tested Not Tested Not Tested No Uvanite Insoluble Not Tested Not Tested Not Tested Not Tested (NH4)2CO3 No Uvarovite Insoluble Insoluble Insoluble Insoluble Not Tested Yes Valentinite Insoluble Soluble Not Tested Not Tested Not Tested No Vanadinite Insoluble Very Soluble Soluble Insoluble Not Tested No PbCl2 precipitates. Soluble hot. Vandenbrandite Insoluble Soluble Soluble Soluble Not Tested No Variscite Insoluble Soluble Not Tested Not Tested Not Tested No Soluble after ignition Vesuvianite Insoluble Soluble with decomposition Insoluble Insoluble Not Tested No Decomposition is slow. Silicon dioxide remains as an insoluble gel Villiaumite Soluble Not Tested Not Tested Not Tested Not Tested No May evolve fluorine or hydrogen fluoride in the presence of acid. Vivianite Insoluble Soluble Insoluble Insoluble Not Tested No Voglite Insoluble Soluble Soluble Soluble Not Tested No Volborthite Insoluble Soluble Soluble Soluble Not Tested Yes Vrabaite Insoluble Soluble Not Tested Not Tested Not Tested No Wagnerite Insoluble Soluble Soluble Not Tested Not Tested No May evolve fluorine or hydrogen fluoride in the presence of acid. Warwickite Insoluble Not Tested Not Tested Soluble with decomposition Not Tested No Wavellite Insoluble Soluble Insoluble Insoluble Not Tested No Weibyeite Insoluble Soluble Not Tested Not Tested Not Tested No Weinschenkite Insoluble Soluble with decomposition Soluble with decomposition Soluble with decomposition Not Tested No Weloganite Insoluble Soluble Insoluble Insoluble Not Tested No Strontium sodium zirconium carbonate… should evolve CO2 Wernerite Insoluble Soluble with decomposition Insoluble Insoluble Not Tested No Silicon dioxide remains as an insoluble gel Whewellite Insoluble Soluble Soluble Soluble Not Tested No Willemite Insoluble Soluble with gel residue Insoluble Insoluble Not Tested No Witherite Insoluble Soluble with decomposition Insoluble Insoluble Not Tested No Evolves carbon dioxide Woehlerite Insoluble Soluble Not Tested Not Tested Not Tested No Wolframite Insoluble Soluble with decomposition Soluble with decomposition Soluble with decomposition Not Tested No Wollastonite Insoluble Soluble with decomposition Insoluble Insoluble Not Tested No Silicon dioxide remains as an insoluble gel Wulfenite Insoluble Soluble with decomposition Insoluble Insoluble Not Tested No PbCl2 separates but is sol in hot water Wurtzite Insoluble Soluble Insoluble Insoluble Not Tested No May evolve hydrogen sulfide or other poisonous gas in the presence of acids. Wurzillite Insoluble Not Tested Not Tested Not Tested Not Tested CS2 No Xenotime Insoluble Insoluble Insoluble Insoluble Not Tested No Yttrialite Insoluble Soluble Not Tested Not Tested Not Tested No Yttrocalcite Insoluble Soluble Soluble Soluble Not Tested No Yttrocerite Insoluble Soluble Not Tested Not Tested Not Tested No Yttrocrasite Insoluble Not Tested Not Tested Soluble Not Tested No Yttrofluorite Insoluble Soluble Soluble Soluble Not Tested No May evolve fluorine or hydrogen fluoride in the presence of acid. Yttrotantalite Insoluble Insoluble Insoluble Insoluble Not Tested No Zaratite Insoluble Soluble Not Tested Not Tested Not Tested No Zeunerite Insoluble Not Tested Soluble Not Tested Not Tested No Zinc Insoluble Soluble Soluble Soluble Not Tested No Zincite Insoluble Soluble Soluble Soluble Not Tested No Zinkenite Insoluble Soluble if Heated Insoluble Insoluble Not Tested No PbCl2 precipitates. Soluble hot. Sb separates on dilution May evolve hydrogen sulfide or other poisonous gas in the presence of acids. Zinnwaldite Insoluble Slightly Soluble Not Tested Not Tested Not Tested No May evolve fluorine or hydrogen fluoride in the presence of acid. Zippeite Insoluble Soluble Soluble Soluble Not Tested No Zircon Insoluble Insoluble Insoluble Soluble Not Tested No Almost Insoluble. Silicon dioxide remains as an insoluble gel. Zirkelite Insoluble Insoluble Insoluble Insoluble Not Tested No Zoisite Insoluble Insoluble Insoluble Insoluble Not Tested Yes Zunyite Insoluble Insoluble Insoluble Insoluble Not Tested Yes May evolve fluorine or hydrogen fluoride in the presence of acid.

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