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South America Platei
Regional Level Types
South America PlateTectonic Plate

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Locality type:
Largest Settlements:
PlacePopulation
Buenos Aires13,076,300 (2017)
São Paulo10,021,295 (2018)
Lima7,737,002 (2010)
Rio de Janeiro6,023,699 (2017)
Santiago4,837,295 (2016)
Caracas3,000,000 (2015)


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Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded from this region.


Mineral List

Mineral list contains entries from the region specified including sub-localities

1541 valid minerals. 243 (TL) - type locality of valid minerals. 11 (FRL) - first recorded locality of unapproved mineral/variety/etc. 11 erroneous literature entries.

Rock Types Recorded

Note: this is a very new system on mindat.org and data is currently VERY limited. Please bear with us while we work towards adding this information!

Rock list contains entries from the region specified including sub-localities

Select Rock List Type

Alphabetical List Tree Diagram

'Adamellite'

Agglomerate

Amphibolite

Andesite

Andesitoid

Angrite meteorite

'Anomalous IIE iron meteorite'

Anorthosite

'Aplite'

Arenite

'Argillite'

'Arkose'

Banded iron formation

Basalt

'Basaltic tuff'

Bauxite

Benmoreite

'Bentonite'

'Biotite schist'

Bituminous-sand

Blueschist

Breccia

C3 chondrite meteorite

CM2 chondrite meteorite

'CO3.1 chondrite meteorite'

Carbonatite

Chert

Chondrite meteorite

Chromitite

Clastic-sediment

Clay

Coal

Conglomerate

'Corundite'

Dacite

Diatomite

Diorite

Dioritoid

'Dolerite'

Dolostone

Dunite

Eclogite

'Endoskarn'

'Eucrite cumulate meteorite'

'Eucrite monomict breccia meteorite'

'Exoskarn'

Fault-breccia

'Feldspar porphyry'

Gabbro

'Geyserite'

'Glaucophane schist'

Gneiss

Gossan

Granite

Granitoid

Granodiorite

Granulite

Greenschist

Greenstone

H4 chondrite meteorite

H5 chondrite meteorite

H6 chondrite meteorite

Harzburgite

'Hornblende andesite'

'Hornblende diorite'

Hornfels

'Hydrothermal breccia'

IAB-MG iron meteorite

IIAB iron meteorite

IIIAB iron meteorite

IVA iron meteorite

'Ignimbritic tuff'

Iron meteorite

'Jaspillite'

Kimberlite

'L3-4 chondrite meteorite'

L4 chondrite meteorite

L6 chondrite meteorite

'LL3.2 chondrite meteorite'

LL5 chondrite meteorite

Lamprophyre

Lapilli-tuff

'Lapis lazuli'

Laterite

'Leucogranite'

Lherzolite

Lignite

Limestone

'Litchfieldite'

Magnetitite

Marble

'Melagabbro'

Mesosiderite-A1 meteorite

Metabasalt

Metaconglomerate

Metagabbro

Metagreywacke

Metarhyolite

Metasandstone

Metasiltstone

Metavolcanic rock

Meteorite

'Mica schist'

Migmatite

Monzodiorite

Monzogranite

Monzonite

Mudstone

Mugearite

Nakhlite meteorite

Nepheline-syenite

Nephelinite

Obsidian

'Olivine basalt'

Orthogneiss

Orthopyroxenite

PMG pallasite meteorite

Paragneiss

Peat

'Pegmatite'

'Pegmatitic granite'

'Peralkaline alkali-feldspar-granite'

'Peralkaline-alkali-feldspar nepheline-syenite'

Peridotite

'Phlogopite schist'

Phonolite

'Phoscorite'

Phyllite

'Polymictic conglomerate'

'Porphyry'

Pumice

Pyroclastic sediment

Pyroxenite

'Quartz porphyry'

Quartz-diorite

'Quartz-feldspar porphyry'

Quartz-monzonite

'Quartz-norite'

Quartzite

Rhyodacite

Rhyolite

Sand

Sandstone

Saprolite

Schist

Scoria

Serpentinite

Shale

Shonkinite

Silt

Siltstone

Skarn

Slag

Spessartite

Syenite

Syenogranite

Søvite

Tonalite

Trachyandesite

Trachybasalt

Trachyte

'Trachytic tuff'

Travertine

Tuff

'Ultramafic-rock'

'Ungrouped IAB iron meteorite'

'Ungrouped iron meteorite'

Ureilite meteorite

Volcanic breccia

Volcaniclastic-breccia

'itabirite'

Detailed Mineral List:

''
Localities:
Acanthite
Formula: Ag2S
Localities: Reported from at least 117 localities in this region.
Achalaite (TL)
Formula: (Fe2+,Mn)(Ti,Fe3+,Ta)(Nb,Ta)2O8
Type Locality:
Reference: Galliski, M. Á., Márquez-Zavalía, M. F., Černý, P., Lira, R., Colombo, F., Roberts, A. C., & Bernhardt, H. J. (2016). Achalaite, Fe2+ TiNb2O8, A New Member of the Wodginite Group From the La Calandria Granitic Pegmatite, Córdoba, Argentina. The Canadian Mineralogist, 54(4), 1043-1052.
Achávalite (TL)
Formula: (Fe,Cu)Se
Reference: [Clark, 1993 - "Hey's Mineral Index, 3rd Edition"]; Ahlfeld Friedrich and Angelelll Vlctorio 1948 Las especies minerales de la Republica Argentina Univ Nac Tucumftn Inst Geologla y Mineria Jujuy Pub no 458 p 47 48 49 50 54 67 69 70 71 120 121 133 134
Actinolite
Formula: ☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Localities: Reported from at least 110 localities in this region.
Adamite (TL)
Formula: Zn2(AsO4)(OH)
Reference: C. R. Acad. Sci. Paris (1866): 62, 692; Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 866.
Adamite var: Cuprian Adamite
Formula: (Zn,Cu)2AsO4OH
Reference: M. Dini collection
Aegirine
Formula: NaFe3+Si2O6
Localities: Reported from at least 33 localities in this region.
Aegirine-augite
Formula: (NaaCabFe2+cMgd)(Fe3+eAlfFe2+gMgh)Si2O6
Localities: Reported from at least 16 localities in this region.
Aenigmatite
Formula: Na4[Fe2+10Ti2]O4[Si12O36]
'Aeschynite'
Reference: A.M.D.V. Chaves (2005) Mineralogia e Geoquímica Supergênicas do Urânio - Província Uranífera de Lagoa Real, Caetité-Bahia. Dissertação de Mestrado, Comissão Nacional de Energia Nuclear, 101p. (In portuguese with abstract in english)
'Agardite'
Agardite-(Y)
Formula: YCu6(AsO4)3(OH)6 · 3H2O
Agmantinite (TL)
Formula: Ag2MnSnS4
Type Locality:
Reference: Keutsch, F.N., Topa, D., Takagi Fredrickson, R., Makovicky, E. and Paar, W. (2015) Agmantinite, IMA 2014-083. CNMNC Newsletter No. 23, February 2015, page 57; Mineralogical Magazine, 79, 51-58
Aguilarite
Formula: Ag4SeS
Aikinite
Formula: PbCuBiS3
Localities: Reported from at least 18 localities in this region.
'Aikinite-Bismuthinite Series'
Localities: Reported from at least 8 localities in this region.
Akaganeite
Formula: (Fe3+,Ni2+)8(OH,O)16Cl1.25 · nH2O
Alabandite
Formula: MnS
Localities: Reported from at least 13 localities in this region.
Alacránite (TL)
Formula: As8S9
Type Locality:
Reference: Clark, A.H. (1970): Alpha-arsenic sulfide, from Mina Alacrán, Pampa Larga, Chile. Am. Mineral. 55, 1338-1344; [Clark, 1993 - "Hey's Mineral Index, 3rd Edition"]
'Alaskaite'
Reference: Board, W. S., Kennedy, B., & Yeomans, T. (2011). NI 43-101 Technical Report on the Pirquitas Mine.
Albite
Formula: Na(AlSi3O8)
Localities: Reported from at least 304 localities in this region.
Albite var: Andesine
Formula: (Na,Ca)[Al(Si,Al)Si2O8]
Localities: Reported from at least 7 localities in this region.
Albite var: Cleavelandite
Formula: Na(AlSi3O8)
Localities: Reported from at least 53 localities in this region.
Albite var: Oligoclase
Formula: (Na,Ca)[Al(Si,Al)Si2O8]
Localities: Reported from at least 21 localities in this region.
Albite var: Pericline
Formula: Na(AlSi3O8)
Reference: Walter R. Kellogg
'Albite-Anorthite Series'
Localities: Reported from at least 147 localities in this region.
Alcaparrosaite (TL)
Formula: K3Ti4+Fe3+(SO4)4O(H2O)2
Type Locality:
Reference: Kampf, A.R.; Mills, S.J.; Housley, R.M.; Williams, P.A.; Dini, M. (2012): Alcaparrosaite, K3Ti4+Fe3+(SO4)4O(H2O)2, a new hydrophobic Ti4+ sulfate from Alcaparrosa, Chile. Mineralogical Magazine 76, 851-861.
Aleksite
Formula: PbBi2Te2S2
Reference: Handbook of Mineralogy
Alfredstelznerite (TL)
Formula: Ca4(H2O)4[B4O4(OH)6]4(H2O)15
Type Locality:
Reference: Galliski, M.A., Cooper, M.A., Márquez-Zavalía, M.F., and Hawthorne, F.C. (2010) Alfredstelznerite: a new calcium borate hydrate from Santa Rosa mine, Salta, northwestern Argentina. Canadian Mineralogist, 48, 123-128
Algodonite (TL)
Formula: (Cu1-xAsx)
Reference: [Economic Geology 66 (1971), 133]
'Alisonite'
Formula: Cu6PbS4
Reference: [Clark, 1993 - "Hey's Mineral Index, 3rd Edition"]
'Alkali Feldspar'
Allanite-(Ce)
Formula: {CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
'Allanite Group'
Formula: {A12+REE3+}{M3+2M32+}(Si2O7)(SiO4)O(OH)
Localities: Reported from at least 24 localities in this region.
Allargentum
Formula: (Ag1-xSbx)
Alloclasite
Formula: Co1-xFexAsS
Allophane
Formula: (Al2O3)(SiO2)1.3-2 · 2.5-3H2O
Alluaudite
Formula: (Na,Ca)Mn2+(Fe3+,Mn2+,Fe2+,Mg)2(PO4)3
Almandine
Formula: Fe2+3Al2(SiO4)3
Localities: Reported from at least 57 localities in this region.
'Almandine-Pyrope Series'
'Almandine-Spessartine Series'
Localities: Reported from at least 6 localities in this region.
Almeidaite (TL)
Formula: PbZn2(Mn,Y)(Ti,Fe3+)18O37(OH,O)
Reference: Luiz A.D. Menezes Filho, L.A.D., Chukanov, N.V., Rastsvetaeva, R.K., Aksenov, S.M., Pekov, I.V., Chaves, M.L.S.C., Scholz, R., Atencio, D., Branda˜o, P.R.G., Romano, A.W., de Oliveira, L.C.A., Ardisson, J.D., Krambrock, K., Moreira, R.L., Guimara˜es, F.S., Persiano, A.C. and Richards, R.P. (2013) Almeidaite, IMA 2013-020. CNMNC Newsletter No. 16, 2013, page 2705; Mineralogical Magazine, 77, 2695-2709; Menezes Filho, L.A.D., Chukanov, N.V., Rastsvetaeva, R.K., Aksenov, S.M., Pekov, I.V., Chaves, M.L.S.C., Richards, R.P., Atencio, D., Brandão, P.R.G., Scholz, R., Krambrock, K., Moreira, R.L., Guimarães, F.S., Romano, A.W., Persiano, A.C., de Oliveira, L.C.A., Ardisson, J.D. (2015): Almeidaite, Pb(Mn,Y)Zn2(Ti,Fe3+)18O36(O,OH)2, a new crichtonite-group mineral, from Novo Horizonte, Bahia, Brazil. Mineralogical Magazine, 79, 269–283
'α-Arsenic Sulphide'
Formula: AsS
Reference: Clark, A.H. (1970) Alpha-Arsenic Sulfide, from Mina Alacrán, Pampa Larga, Chile. The American Mineralogist, 55, 1338-1344.
'α-Brass'
Formula: Cu3Zn
Description: Occurs between native zinc and native copper.
Reference: Am Min 55:5-6 pp 1019-1021
Alstonite
Formula: BaCa(CO3)2
Reference: Comin-Chiaramonti, P., de Barros Gomes, C., Castorina, F., di Censi, P., Antonini, P., Furtado, S., ... & Scheibe, L. F. (2008). Geochemistry and geodynamic implications of the Anitápolis and Lages alkaline-carbonatite complexes, Santa Catarina State, Brazil. Brazilian Journal of Geology, 32(1), 43-58.
Altaite
Formula: PbTe
Localities: Reported from at least 15 localities in this region.
Althausite
Formula: Mg4(PO4)2(OH,O)(F,☐)
'Alum Group'
Formula: XAl(SO4)2 · 12H2O
Aluminite
Formula: Al2(SO4)(OH)4 · 7H2O
Aluminium
Formula: Al
Habit: The mineral appears as 80-150 μm specks formed by agglomerates of 2 to 8 μm curved flake crystals with thickness of about 0.1 μm.
Description: X-Ray Diffraction Scanning Electron Microscopy and Scanning Auger Microscopy
Reference: Franco Urbani, Carlos Rojas, Rafael Carreño and Ander De Abrisqueta (2007) SEM, SAM Characterization of a Native Aluminum Occurrence in the “Roraima South Cave System”, Venezuela. Acta Microscopica Vol 16 No1-2,(Supp.2); Franco Urbani, Bogdan P. Onac (2017) A Native Aluminum Occurrence in Roraima South Cave, Venezuela. In 17th International Congress of Speleology (No. I, pp. 272). Australian Speleological Federation Inc.
Aluminocopiapite
Formula: Al2/3Fe3+4(SO4)6(OH)2 · 20H2O
Alum-(K)
Formula: KAl(SO4)2 · 12H2O
Alum-(Na)
Formula: NaAl(SO4)2 · 12H2O
Reference: Chukanov, N.V., Aksenov, S.M., Rastsvetaeva, R.K., Möhn, G., Rusakov, V.S., Pekov, I.V., Scholz, R., Eremina, T.A., Belakovskiy, D.I. and Lorenz, J.A. (2016): Magnesiovoltaite K2Mg5Fe3+3Al(SO4)12•18H2O, a new mineral from the Alcaparrosa mine, Antofagasta region, Chile. European Journal of Mineralogy, 28, 1005-1017
Alumohydrocalcite
Formula: CaAl2(CO3)2(OH)4 · 4H2O
Habit: triclinic
Colour: pale blue
Reference: Raúl Jorge Tauber Larry´s collection.
Alumotantite
Formula: AlTaO4
Reference: http://rruff.geo.arizona.edu/doclib/hom/parabariomicrolite.pdf.; Canadian Mineralogist (1986): 24: 655-663.
Alunite
Formula: KAl3(SO4)2(OH)6
Localities: Reported from at least 91 localities in this region.
Alunogen
Formula: Al2(SO4)3 · 17H2O
Localities: Reported from at least 8 localities in this region.
Amarantite (TL)
Formula: Fe3+2(SO4)2O · 7H2O
Localities: Reported from at least 7 localities in this region.
Reference: Bulletin de Minéralogie 87 (1964), 125
Amarillite
Formula: NaFe(SO4)2 · 6H2O
Reference: XRD by Joachim Lorenz, SEM-EDS by Joy Desor
'Amber'
Reference: J. Hyrsl (2012) Gemstones of Peru, p. 33
Amblygonite
Formula: LiAl(PO4)F
Localities: Reported from at least 23 localities in this region.
'Amblygonite-Montebrasite Series'
Localities: Reported from at least 26 localities in this region.
Ameghinite (TL)
Formula: Na(H4B3O7)
Type Locality:
Reference: Amer.Min.(1967) 52, 935-945; Am Min 58:308-313; Alonso, R. N. (1999). On the origin of La Puna borates. Acta geológica hispánica, 34(2), 141-166.; CAHIT HELVACI & RICARDO N. ALONSO (2000) Borate Deposits of Turkey and Argentina; A Summary and Geological Comparison. Turkish Journal of Earth Sciences, 9:1-27.
Amesite
Formula: Mg2Al(AlSiO5)(OH)4
Reference: Berni, G. V., Heinrich, C. A., Lobato, L. M., Wall, V. J., Rosière, C. A., & Freitas, M. A. (2014). The Serra Pelada Au-Pd-Pt Deposit, Carajás, Brazil: Geochemistry, Mineralogy, and Zoning of Hydrothermal Alteration. Economic Geology, 109(7), 1883-1899.; Berni, G. V., Heinrich, C. A., Lobato, L. M., & Wall, V. (2016). Ore mineralogy of the Serra Pelada Au-Pd-Pt deposit, Carajás, Brazil and implications for ore-forming processes. Mineralium deposita, 51(6), 781-795.
Ammoniojarosite
Formula: (NH4)Fe3+3(SO4)2(OH)6
Reference: Urbani, 1997. Bol. Soc. Venezolana de Espeleología, no.30.
'Amphibole Supergroup'
Formula: AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Localities: Reported from at least 55 localities in this region.
'Amphibole Supergroup var: Byssolite'
Formula: AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Reference: Juan Carlos Lodovichi (juancalo@bvconline.com.ar).
Analcime
Formula: Na(AlSi2O6) · H2O
Localities: Reported from at least 27 localities in this region.
Anatase
Formula: TiO2
Localities: Reported from at least 44 localities in this region.
Anatase var: Niobian Anatase
Formula: (Ti,Nb)O2
Reference: Sighnolfi, G., Costi, H. T., Horbe, A. M. C., Borges, R. M. K., Dall'agnol, R., & Rossi, A. (2008). Mineral chemistry of cassiterites from Pitinga Province, Amozonian Craton, Brazil. Brazilian Journal of Geology, 30(4), 775-782
'Ancylite'
Localities: Reported from at least 7 localities in this region.
Ancylite-(Ce)
Formula: CeSr(CO3)2(OH) · H2O
Ancylite-(La)
Formula: LaSr(CO3)2(OH) · H2O
Reference: Azzi, Andrezza de Almeida (2017) Rare Minerals from Poços de Caldas, MG
Andalusite
Formula: Al2(SiO4)O
Localities: Reported from at least 31 localities in this region.
Andalusite var: Chiastolite
Formula: Al2(SiO4)O
Reference: Alfredo Petrov and Martins da Pedra specimens.
Andalusite var: Viridine
Formula: (Al,Mn3+)2SiO4O
Reference: Rob Lavinsky
Andersonite
Formula: Na2Ca(UO2)(CO3)3 · 6H2O
Reference: Toubes, R.O., Chaar, E. Spikerman, J.P. Minerales radiactivos de la Republica Argentina. 5 Congreso Geologico Argentino, 1: 249-260. 1973; American Mineralogist: 51: 1-13
'Andorite'
Formula: AgPbSb3S6
Localities: Reported from at least 11 localities in this region.
Andorite IV
Formula: Pb18Ag15Sb47S96
Andorite VI
Formula: AgPbSb3S6
Reference: Amer.Min.(2000) 85, 1066-1075
Andradite
Formula: Ca3Fe3+2(SiO4)3
Localities: Reported from at least 37 localities in this region.
Andradite var: Demantoid
Formula: Ca3Fe3+2(SiO4)3
Reference: Dr. Jorge Dascal and Gunnar Färber specimens
Andradite var: Melanite
Formula: Ca3Fe3+2(SiO4)3
Localities: Reported from at least 7 localities in this region.
'Andradite-Grossular Series'
Ángelaite (TL)
Formula: Cu2AgPbBiS4
Type Locality:
Reference: Topa, D., Makovicky, E., Paar, W., Brodtkorb, M. (2004): The crystal structure of Angelaite, Cu2AgPbBiS4, a new mineral species from Angela mine, Province of Chubut, Argentina. 32nd IGC - Florence, 2004.; Dan Topa, Werner H. Paar, Hubert Putz, Georg Zagler, Milka K. de Brodtkorb, Chris J. Stanley, Andrew C. Roberts, and Emil Makovicky (2010) Mineralogical data on angelaite, Cu 2 AgPbBiS 4 , from the Los Manantiales district, Chubut, Argentina. The Canadian Mineralogist (February 2010), 48(1):139-144
Angelellite (TL)
Formula: Fe3+4(AsO4)2O3
Type Locality:
Description: Probably exhalative origin, fumarolic vapor.
Reference: Neues Jahrb.Mineral., Mh. (1959) 145-151 (and 152-158); Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 4, 2000
Anglesite
Formula: PbSO4
Localities: Reported from at least 45 localities in this region.
Anhydrite
Formula: CaSO4
Localities: Reported from at least 78 localities in this region.
Anilite
Formula: Cu7S4
Localities: Reported from at least 7 localities in this region.
Ankerite
Formula: Ca(Fe2+,Mg)(CO3)2
Localities: Reported from at least 55 localities in this region.
Annabergite
Formula: Ni3(AsO4)2 · 8H2O
Localities: Reported from at least 6 localities in this region.
Annite
Formula: KFe2+3(AlSi3O10)(OH)2
'Annite-Phlogopite Series'
Reference: Pagano, D.S., Galliski, M.Á., Márquez-Zavalía, M.F., Colombo, F. (2016): Petrology and mineralogy of the La Peña igneous complex, Mendoza, Argentina: An alkaline occurrence in the Miocene magmatism of the Southern Central Andes. Journal of South American Earth Sciences: 67 (in press); http://forum.amiminerals.it/viewtopic.php?f=5&t=12553 (2016)
Anorpiment (TL)
Formula: As2S3
Type Locality:
Reference: Kampf, A.R., Downs, R.T., Housley, R.M., Jenkins, R.A. & Hyrsl, J. (2011): Anorpiment, As2S3, the triclinic dimorph of orpiment. Mineralogical Magazine, 75, 2857-2867
Anorthite
Formula: Ca(Al2Si2O8)
Localities: Reported from at least 22 localities in this region.
Anorthite var: Bytownite
Formula: (Ca,Na)[Al(Al,Si)Si2O8]
Anorthite var: Labradorite
Formula: (Ca,Na)[Al(Al,Si)Si2O8]
Localities: Reported from at least 7 localities in this region.
'Anorthoclase'
Formula: (Na,K)AlSi3O8
Antarcticite
Formula: CaCl2 · 6H2O
Reference: De Waele, J., Carbone, C., Sanna, L., Vattano, M., Galli, E., & Forti, P. (2017). Secondary minerals from halite caves in the Atacama Desert (Chile). In 17th International Congress of Speleology (No. I, pp. 242-246). Australian Speleological Federation Inc.
Anthophyllite
Formula: ☐{Mg2}{Mg5}(Si8O22)(OH)2
Localities: Reported from at least 11 localities in this region.
'Anthosiderite'
Reference: Hausmann, J. Fr. L. and Wöhler, F. (1841): Ueber den Anthosiderit, eine neue Mineral-Species aus Brasilien. Journal für Praktische Chemie. 22, 412–415
Antigorite
Formula: Mg3(Si2O5)(OH)4
Localities: Reported from at least 8 localities in this region.
Antigorite var: Andes Jade
Formula: Mg3(Si2O5)(OH)4
Reference: Dr. Jorge Dascal (Patagonia Minerals) specimens
Antimony
Formula: Sb
'Antitaenite'
Formula: Fe3Ni
Antlerite
Formula: Cu3(SO4)(OH)4
Localities: Reported from at least 16 localities in this region.
Antofagastaite
Formula: Na2Ca(SO4)2·1.5H2O
Reference: Pekov, I.V., Kovrugin, V.M., Siidra, O.I., Chukanov, N.V., Belakovskiy, D.I., Koshlyakova, N.N., Yapaskurt, V.O., Turchkova, A.G. and Möhn, G. (2018) Antofagastaite, IMA 2018-049. CNMNC Newsletter No. 45, October 2018, page xxx; Mineralogical Magazine, 82, xxx-xxx; http://forum.amiminerals.it/viewtopic.php?f=5&t=14984
'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
Localities: Reported from at least 223 localities in this region.
'Apatite var: Carbonate-rich Apatite'
Reference: Am Min (1955) 40:55-63
'Apatite var: Collophane'
'Apatite Group'
Aphthitalite
Formula: (K,Na)3Na(SO4)2
Aphthitalite var: Ammonium-Aphthitalite
Formula: Na(K,NH4)SO4
Reference: Frondel, C. (1950) American Mineralogist: 35: 596. Palache et al (1951) Dana's Sys. Mineralogy, 7th. ed.: 402.
'Apophyllite'
Aragonite
Formula: CaCO3
Localities: Reported from at least 46 localities in this region.
Aragonite var: Flos Ferri
Formula: CaCO3
Aramayoite
Formula: Ag3Sb2(Bi,Sb)S6
Localities: Reported from at least 8 localities in this region.
Arcanite
Formula: K2SO4
Description: Found in guano beds.
Reference: Taylor (1859) Proceedings of the Academy of Science, Philadelphia: 309 (as Glascerite); Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 400.
Arcanite var: Taylorite (of Dana)
Formula: (K,NH4)2SO4
Description: Found in guano beds.
Reference: Taylor (1859) Proceedings of the Academy of Science, Philadelphia: 309 (as Glascerite); Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 400.
Ardealite
Formula: Ca2(HPO4)(SO4) · 4H2O
Arfvedsonite
Formula: [Na][Na2][Fe2+4Fe3+]Si8O22(OH)2
Localities: Reported from at least 12 localities in this region.
Argentobaumhauerite
Formula: Ag1.5Pb22As33.5S72
Habit: nearly amorphous crust
Colour: indistinct purple crust
Fluorescence: none
Description: The crust was very difficult to x-ray and Baumhaurite 2a was the best guess.
Reference: Robinson, G. W., Harris, D. C. (1987): A baumhauerite-like mineral from Quiruvilca, Peru. Mineralogical Record 18, 199-201.; Crowley, J.A., Currier, R.H. & Szenics, T. (1997): Mines and Minerals of Peru. Mineralogical Record 28, 1-98.
Argentojarosite
Formula: AgFe3+3(SO4)2(OH)6
Argentopentlandite
Formula: Ag(Fe,Ni)8S8
Argentopyrite
Formula: AgFe2S3
Reference: Board, W. S., Kennedy, B., & Yeomans, T. (2011). NI 43-101 Technical Report on the Pirquitas Mine.
Argentotennantite
Formula: Ag6[Cu4(Fe,Zn)2]As4S13
Argyrodite
Formula: Ag8GeS6
Localities: Reported from at least 8 localities in this region.
'Argyropyrite'
Formula: near Ag2Fe7S11
Reference: Cucurella J., Flores I. 1994: Condoriaco silver deposit: a geological, mineralogical and genetic reconstruction from I. Domeyko collection of the University La Serena, Chile. Mineralogia Polonica, vol. 25, no. 1, 59-68
Arhbarite
Formula: Cu2Mg(AsO4)(OH)3
Aristarainite (TL)
Formula: Na2MgB12O20 · 8H2O
Type Locality:
Reference: Amer.Min.(1974) 59, 647-651; Alonso, R. N. (1999). On the origin of La Puna borates. Acta geológica hispánica, 34(2), 141-166.; CAHIT HELVACI & RICARDO N. ALONSO (2000) Borate Deposits of Turkey and Argentina; A Summary and Geological Comparison. Turkish Journal of Earth Sciences, 9:1-27.
Armalcolite
Formula: (Mg,Fe2+)Ti2O5
Arrojadite-(KFe) (TL)
Formula: {KNa}{Fe2+◻}{Ca}{Na2◻}{Fe2+13}{Al}(PO4)11(HPO4)(OH)2
Localities: Reported from at least 7 localities in this region.
Reference: Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 680; Rocks & Minerals (Jan.2000).
Arrojadite-(PbFe) (TL)
Formula: {Pb◻}{Fe2+◻}{Ca}{Na2◻}{Fe2+13}{Al}(PO4)11(HPO4)(OH)2
Type Locality:
Reference: Chopin, C., Oberti, R., Cámara, F. (2006): The arrojadite enigma: II. Compositional space, new members and nomenclature of the group. American Mineralogist, 91, 1260-1270
Arsenic
Formula: As
Localities: Reported from at least 23 localities in this region.
'Arsenic Sulphide Glass No. 2'
Habit: Botryoidal masses
Colour: black with bright red internal reflections
Fluorescence: none
Description: Botryoidal masses often connected by laths of Dimorphite
Reference: P. Ramdohr, Ore Mineralogy, 3rd ed. pg 890.
Arseniosiderite
Formula: Ca2Fe3+3(AsO4)3O2 · 3H2O
Arsenolamprite
Formula: As
Arsenolite
Formula: As2O3
Arsenopalladinite (TL)
Formula: Pd8(As,Sb)3
Reference: Canadian Mineralogist: 15: 70-73; Chem. Index of Minerals (1955) p. 23 and 339; Mineralogical Magazine(1974): 39, 528-543
Arsenopyrite
Formula: FeAsS
Localities: Reported from at least 194 localities in this region.
Arsenopyrite var: Danaite
Formula: (Fe0.90Co0.10)AsS - (Fe0.65Co0.35)AsS
Arsentsumebite
Formula: Pb2Cu(AsO4)(SO4)(OH)
Ref