 | | | | groups: Minerals that have oxygen tightly bonded in a group around a central non-metallic ion. Oxides or carbonate...Silicates: Minerals have oxygen tightly Olivine, garnet, epidote, vesuvianite, rhodonite, beryl, tourmaline...feldspar, nepheline, zeolite, sodalite, bonded in a group around a central silicon atom. kyanite, topaz, titanite...the colour drastically, for example, tourmaline, garnet, topaz, quartz. Streak: Colour of Powder Streak...90 chrysotile (green, white, yellow), p. 214 garnet (red, orange, green), p. 166 nepheline (white, |  | | Book | | Yeryfine, rare, pink diamonds. Emerald, alexandrite, garnet, and tourmaline are all significantly present....finds, and is fueling interest. Rare and unusual garnet and chrome tourmaline are widely identified with...34.60-carat malaya garnet, a 28.41-carat tanzanite, a 9. 73-carat tsavorite garnet, and a 22.69-carat...Garnets of East Africa 73 Rh.odolite of the Lindi District, Tanzania 76 Tsavorite Garnets 76 The Pyrope-...Tanzania 96 Red Dravite Tourmaline from the Narok District, Kenya 99 Uvite-Dravite Chrome Tourmaline 99 |  | | Journal (article/letter/editorial) | | important group of these minerals makes collectors sit up and take notice. The garnet group has great...stones looked like glowing coals. The Romans called garnet carbunculus (from the Latin meaning ālittle charcoalā)...and color (Gilg 2008). The first use of the name garnet was by Albrecht von BollstƤdt (1193ā1280), who...pomegranate that garnet resembles (Galoisy 2013). There are also a few myths associated with garnet, some of...of which Iāll mention. One has it that wearing a garnet from birth will make the wearer impervious to being |  | | Catalog/List | | ~black cry~t~i;,o;-~;atrix. M~~nl Malo~O:. i:~n{ba District. IX I ins Ā£5 2 AEGIRINE Ā£10 Pyroxene Malawi lxl... _ . Pure black mica plate new Analysis , Saga Quarry. Tvedalcn near Ix I Ā£3 I x2 Ā£6 2x2 Ā£ 12 7 AN!lilTE...18 ANORTHITE ..J:.e.l_dspar 2x2Ā£2 2x3 Ā£4 Felspar group pun: pale brown cleavages. Ula, near Larvik, South...Brazil Rich bĀ·iue ~~ massive 54 APATITE Felspar group 2>c3 Ā£7.S0 Ix2 Ā£2.SO 2x2 Holmbush Mine. Kelly Bray...cleavage 42 BARYTES ā¢ Ā·-- -Ā·Small while crystal group offseptarian Sheppcy, Kent J x I cm _BaSO/4 __ ____ |  | | Catalog/List | | mass of black crystals, some Mount Malosa, Zomba District, free standing. ______ ______ Malawi Black crystal...Madagascar 1 ins Ā£4 ALMANDINE 1 Crystal I inch across garnet group__________ 1 x '/2 Ā£4 pure grey masses with...Arizona Pure green cleavage AMAZONITE Landsverk quarry, Evje, Norway Ixl 50p lx2Ā£l 11 felspar group____________...material. Dolomite group 2x2 Ā£12 1x2 Ā£6 1x1 Ā£3 7 Pure black mica plate new Analysis , Saga Quarry, Tvedalen near...Feldspar 2x3 Ā£4 2x2 Ā£2 168 ANORTHOCLASE Felspar group pure pale brown cleavages. Ula, near Larvik, South |  | | Report (edition) | | āoldā Lime Bluff quarry, Muncy; right fibrous : tremolite, C. K. Williams quarry, Easton: bottom: calcite...oriented coatings of goethite, āoldā Lime Bluff quarry, Muncy, (courtesy of Delbert L. Oswald) ADDITIONAL...edition of Mineral Collecting Cedar Hill in quarry where Dave had done IV much of his work PREFACE...permission from the owners of the land, from the quarry or mine operators before entering to collect. (Land...compilation. Finally, we acknowledge the many quarry and property owners who have aided the authors |  | | Book (edition) | | pyrite crystal makes it possible to assign it to a lower symmetry class than that of the geometric cube,...some of the contents of a unit cell must have a lower symmetry than that of the particular Bravais lattice...how, in the passage from the upper form to the lower, the silicon atoms are more symmetrically spaced...solutions at high We temperatures, whereas at a lower temperature they develop exsolution, i.e., the unmixing...atmospheres are octahedral, and those obtained at lower pressures are cubic. , Hopper faces in a quartz |  | | Book | | amianthus, blue 100 _amianthus, Cape 100. amphibole group 98 analcite 76, 108, 111 anatase 34, 34 andalusite...coquimbite 60 cordierite 95 galena 12, 13 garnet group 76 garnierite 107 gaylussite 50 gehlenite...eye 31 fayalite 75 feldspars 111 feldspathoid group 108 ferrierite 122 ferrimolybdite 63 fluoborite...119 metacinnabarite 13 meyerhofferite 54 mica group 104 mica, white 104 microcline 112, /13 millerite...pyrolusite 34 pyrope 76 pyrophyllite 102, 103 pyroxene group 96 pyrrhotite 12, /2 quartz 28, 31, 95 nepheline | | | | | amianthus, blue 100 -amianthus, Cape 100 amphibole group 98 annabergite 73 arduinite 119, /2/ argentite...dialogite 42, 42 diamond 5, 6 galena 12, /3 garnet group 76 garnierite 107 gaylussite SO gehlenite 85...97, 98 fayalite 75 feldspars 111 feldspathoid group 108 ferrierite 122 ferrimolybdite 63 fluoborite...119 metacinnabarite 13 meyerhofferite 54 mica group 104 mica, white 104 microcline 112, //3 millerite...102, /03 pyroxene group 96 pyrrhotite 12, /2 siberite 96 siderite 42 silica group 31 silicates 75 sillimanite | | | Book | | arnianthus, blue 100 ...amianthus, Cape 100 amphibole group 98 analcite 76, 108, I 11 anatase 34, 34 andalusite...fassaite 97, 98 fayalite 75 feldspars 111 feldspathoid group I08 ferrierite 122 ferrimolybdite 63 fluoborite...gadolinite 85 gahnite 24 galaxite 24 galena 12, 13 garnet group 76 garnierite 107 gaylussite 50 gehlenite 85...mesotype 119 metacinnabarite 13 meyerhofferite 54 mica group 104 mica, white 104 microcline 112, 113 miJlerite...68, 68 pyrope 76 pyrophyllite 102, 103 pyroxene group 96 pyrrhotite 12, 12 quartz 28, 31, 95 quartz, amethyst |  | | Book | | rocks contain large crystals, often of the feldspar group and are known as porphyries. The individual crystals...are the home of a number of interesting minerals. Garnet, staurolite and andalusite are typical minerals...minerals change. A number of silicate minerals such as garnet and epidote and some sulphides giving metallic...contact metamorphism. Fine crystals of vesuvianite, garnet, scapolite and spinel can be found in altered limestones... Dio rite Gabbro Peridotite 13 Dunite Serpentinite Rhyolite -14 Obsidian Z K ā Ā£ ?*Ā«* |  | | Catalog/List | | mass of black crystals, some Mount Malosa, Zomba District, lxl ins Ā£5 lx2ins _lyro?'~~e . __ __ _ ___ ___...formed dodecahedral Madagascar ALMANDINE lins Ā£4 garnet group Crystal 1 inch across Grey veins in and on matrix...- - - AMAZONITE Pure green cleavage Landsverlc quarry, Evje, Norway lxl S0p ALAMOSITE fcLp 10 g:...Ā£10 lx2Ā£10 lx2 Ā£1 r- - ā¢ AMAZONITE Felspar Group 16 IxĀ½ Ā£5 2x2 Ā£1.20 MICROCLINE .Green crystal...ANKERITE-KUfNAHORJTE Rich fawn massive, xrayed material. Dolomite group lxl Ā£3 Laurium Greece Good green micros in lxlins |  | | Catalog/List | | location details l cmĀ£4 2cmĀ£8 Mount Malosa, Zomba District. Malawi IxI ins Ā£5 Rich line grained black crystalline...white sphere shaped nodule. ALSiO ALMANDINE garnet group AlS0/4 Al S0/4 ā New East Whcal Russell mine...C0/3 AISiO Feldspar Pb AgSb S CaS0/4 Dolomite group ANNITE ANORTHITE Pure black mica plate new Analysis...grey crystalline mass. 168 ANORTHOCLASE Felspar group pure pale brown cleavages. Ula. near Larvik,South...Kaveltorp MineSweden 18 Mica Feldspar Felspar Group Amphibole 502 ANTIGORITE 29 ANTIGORITE MgFe |  | | Journal (article/letter/editorial) | | second source area is located in the northwest in a Lower Austroalpine position near the transpressive plate...analyses of detrital white mica, amphibole and garnet support the discrimination between the two source...and chloritoid composition suggest the erosion of lower blueschist facies rocks in the northwestern source...siliciclastic rocks concordantly overlie Upper Jurassic to Lower Cretaceous pelagic limestones (Aptychus Limestone...stratigraphically from ?Berriasian=Valanginian to Lower Aptian and is restricted to the middle and eastern |  | | Journal (article/letter/editorial) | | minerals Article Garnet-Vesuvianite Equilibrium in Rodingites from DobÅ”inĆ” (Western Carpathians) Juraj...Citation: Butek, J.; SpiÅ”iak, J.; MilovskĆ”, S. Garnet-Vesuvianite and Stanislava MilovskĆ” 3 Faculty...typical rodingite mineral association: hydrated garnet, vesuvianite, diopside and clinochlore. Electron...mineralogical evolution and variable mineral chemistry. Garnet solid solution is dominated by grossular-andradite...of hydration, mainly for grossular rich garnet cores. Garnet is locally enriched in TiO2 (up to 13 wt%) |  | | Report (issue) | | Garnet Great Balls of Fire ISBN 978-0-9790998-4-7 Publisher Lithographie, LLC East Hampton, Connecticut...meter relay at the 1960 Summer Olympics in Rome. Garnet Great Balls of Fire Contributors Lothar Ackermann...2008, I attended the John Sinkankas Symposium on garnet at the Gemological Institute of America (GIA) in...confirmed that he had experimented with irradiating garnet and found that even megadoses of radiation had...International, spoiled the party, informing the group that the color of some 50 percent of the green gem |  | | Book | | fect (mica), distinct (calcite) and imperfect (garnet) cleavage. Other minerals cannot be split at all...hardness. Each mineral will scratch those in a lower division on the scale and can be scratched by those...epidote, enstatite, feldspar, glaucophane, mica, garnet, hauyne, hedenbergite, hornblende, hypersthene...muscovite (No. 13). Rare. Specimen from the Tyrol (Austria). 10 Biotite is the most common mica, named after...tablets. Occurrence: Eifel (Germany), Carinthia (Austria), Norway (No. 10). 11 Zinnwaldite (lithium mica) |  | | Book (edition) | | to the chemical formula, allegiance to a mineral group, symmetry and crystal structure as well as the strongest...chemical formula, structure (crystal system, space group, and unit cell dimensions), and at least some other...site occupancy. The Sb members of the tennantite group (2.G) will serve as a good example: tetrahedrite...registered in this book (e.g. in the amphibole group). For more detailed information see "Dana's System...dept. (departement), dept. (departamento), dist. (district). Less common terms are not abbreviated, e.g. |  | | Book | | ā_ā 1.12 ā 8 10 ā ā_ 12 14 _ ā Courtesy of F&S Group Geology and World Deposits TAO 6.30 5.60 5.00 4...and related materials Feldspar 106 Fluorspar Garnet Graphite 110 Slate Sodium sulfate 122 = 130...major producing districts, or a representative district if there are many. We name the chief mining companies...graphite supply must come not merely from one district but from a single mine. Thus the physical properties...the industrial minerals covers a highly diverse group of materials. At the one extreme is gravel and crushed |  | | Catalog/List | | ANDRADITE garnet group ā¦ ANGLES ITE Pb SO/4 ANHYDIUTE Ca SO/4 AN KERITE-KUTNAIIORITE Dolom ite group ANN ITE...Mica AN ORTHITE Fe ldspar ANORTHOCLASE Felspar Group ANTHOPH YLLITE Amphibole 2cm Ā£8 3cm Ā£ 15 Near...Quebec Ix! Ā£ 1.10 ,Canada Mount Malosa, Zomba District, IxĀ½ Ā£3 Malawi Nandan Meteroite, Lihu,Nandan 3mm...Mapimi. Mexico A LLOPHANE ALSi O A LMANDINE garnet group ā¦ A LSTONITE Ba C a CO/3 A LUJ\UNITE Al SO/4...sug.iry textured mass. good small grey crystal group ~- 2x2 Ā£15 s I z E s i\l ,\ lx l Ā£4 Ix I |  | | Corporate Document (Series) | | Geology and major deposits, Heazlewood mineral district ... Main mineral locations and 1:100 000 scale...72 variety or invalid names, and 36 series and group names. All entries in the 1969 catalogue have been...Cambrian to Early Devonian sedimentary rocks; Mathinna Group Early Cambrian al/octhons: Ullramafic-mafic complexes...zeolitised). Form ofJurassic dolerite intrusion (lower part ofcliff) in Devoniangranite basement overlainby...mine at Beaconsfield and mines in the Mathinna district being the major producers. The former Tasmania |  | | Journal (article/letter/editorial) | | combining the commodity (lines) shown by numbers plus lower caps with the host rocks or structure (columns).... . . . . . . . . . . . . . . . . . . Platinum group elements (PGE) . . . . . . . . . . . . . . . . ...platinum-group-element deposits . . . . . . . . . . . . 6.3. Structure-related platinum-group-element...Sedimentary platinum-group-element deposits . . . . . . . . . . 6.5. Platinum-group-element supply and...inosilicate supply and use. . . . . . . . . . . . . . Garnet . . . . . . . . . . . . . . . . . . . . . . . | | | Journal (article/letter/editorial) | | combining the commodity (lines) shown by numbers plus lower caps with the host rocks or structure (columns).... . . . . . . . . . . . . . . . . . . Platinum group elements (PGE) . . . . . . . . . . . . . . . . ...platinum-group-element deposits . . . . . . . . . . . . 6.3. Structure-related platinum-group-element...Sedimentary platinum-group-element deposits . . . . . . . . . . 6.5. Platinum-group-element supply and...inosilicate supply and use. . . . . . . . . . . . . . Garnet . . . . . . . . . . . . . . . . . . . . . . . |  | | Journal (issue) | | multi-stars in other minerals, especially in spinel and garnet, on the other hand, is well understood (Switzer...cabochons were originally cut with curved upper and lower surfaces and a small flat base. In general, only...upper and one lower star), twelve 'middle stars' (six on the upper and six on the lower part of the sphere)...upper and six four-rayed stars are located on the lower half of a cabochon or sphere. Thus, the network...six-rayed stars and of twelve (six upper and six lower) four-rayed stars (see Figure 8b). On the upper |  | | Journal (article/letter/editorial) | | preiswerkite is euhedral and associated with Caā CrāAl-garnet, clinochlore, titanite, and calcite. Preiswerkite...(Godard and Smith, 1999); Koralpe and Saualpe, Austria (Miller, 1990); Rio La Palmilla, Guatemala (Harlow...and consist of mica schist, staurolite schist, garnetāstaurolite schist, sillimanite schist, meta-arkose... 2d). Preiswerkite is associated with greenish garnet, lining the cavity and filling AC interstices...the chromite grains or as inclusions in chromite. Garnet is pale green in SC RI thin section and less |
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