List of minerals A (complete)

This list includes those recognised minerals beginning with the letter A. The International Mineralogical Association is the international group that recognises new minerals and new mineral names, however minerals discovered before 1959 did not go through the official naming procedure, although some minerals published previously have been either confirmed or discredited since that date. This list contains a mixture of mineral names that have been approved since 1959 and those mineral names believed to still refer to valid mineral species (these are called "grandfathered" species).

The list is divided into groups:

The data was exported from mindat.org on 29 April 2005; updated up to 'IMA2016'.

The minerals are sorted by name, followed by the structural group (rruff.info/ima and ima-cnmnc by mineralienatlas.de) or chemical class (mindat.org and basics), the year of publication (if it's before of an IMA approval procedure), the IMA approval and the Nickel–Strunz code. The first link is to mindat.org, the second link is to webmineral.com, and the third is to the Handbook of Mineralogy (Mineralogical Society of America).

  • Abbreviations:
    • D – discredited (IMA/CNMNC status).
    • Q – questionable/ doubtful (IMA/CNMNC, mindat.org or mineralienatlas.de status).
    • N – published without approval of the IMA/CNMNC, or just not an IMA approved mineral but with some acceptance in the scientific community nowadays.
    • I – intermediate member of a solid-solution series.
    • H – hypothetical mineral (synthetic, anthropogenic, etc.)
      • ch – incomplete description, hypothetical solid solution end member.
    • Rd – redefinition of ...
    • "s.p." – special procedure.
    • group – a name used to designate a group of species, sometimes only a mineral group name.
    • no – no link available.
    • IUPAC – chemical name.
    • Y: 1NNN – year of publication.
    • Y: old – known before publications were available.

A

Aa – Ak

Acanthite, Chispas Mine, Arizpe, Sonora, Mexico
Actinolite (acicular form) with calcite
Combination of jet-black aegirines splaying out from matrix of feldspar

Afghanite on the left, lazurite on the right.
Afghanite viewed under ultra-violet light: calcite emits rose light as afghanite, lazurite doesn't emit visible light.
Ajoite in quartz - Messina mine, Limpopo Province, South Africa
Åkermanite (yellowish brown), calcite (blue), hillebrandite (variety foshagite, fibrous), tilleyite (mallow colored), from Crestmore, Riverside, California, USA
Almandine garnet crystal
Allophane
Amazonite from Brazil
Amethyst crystals
Andorite from San José Mine, Oruro City, Cercado Province, Oruro Department, Bolivia
Pastel-pink apatite crystal, transparent quartz crystals, jet-black schorl, muscovite and sharp albite crystals
Crystals of apophyllite piled up on matrix
Mint green apophyllite-(KF) rosette, Momin Pada, Maharashtra, India
Apophyllite-(NaF). Nasik District, Maharashtra, India
Nagar aquamarines have a tendency to form large clusters; from Nagar (Nagir), Hunza Valley, Gilgit District, Northern Areas, Pakistan
Arfvedsonite, Poudrette quarry, Mont Saint-Hilaire, Montérégie, Quebec
Arsendescloizite and mimetite, Ojuela Mine, Mapimí, Durango, Mexico
Native arsenic crystals, Ronna Mine, Kladno, Bohemia, Czech Republic
Arsenopyrite from Hidalgo del Parral, Chihuahua, Mexico
Crystal of augelite stands out in this cluster
Aurichalcite needles spraying out within a protected pocket lined by bladed calcite crystals
Aurichalcite crystals in calcite
Austinite, from Durango, Mexico
Autunite, 6.5 × 5.5 × 4 cm, Daybreak Mine, Spokane County, Washington, US
Axinite-(Mn), with sharp curving crystals to 4 cm. West Bor Pit at Dalnegorsk, Russia
Axinite-(Mn), Vitória da Conquista, Bahia, Brazil size 5.5 × 2.4 × 0.8 cm
Exceptionally large azurite crystal, 6 × 2 × 2 cm, Tsumeb, Namibia
Deep blue, sparkly crystals of azurite in a shallow vug, on a matrix of azurite
  1. Abellaite (IMA2014-111) 05.?? [no] [no]
  2. Abelsonite (IMA1975-013) 10.CA.20
    (IUPAC: a nickel porphyrine derivative)
  3. Abenakiite-(Ce) (IMA1991-054) 09.CK.10 [no]
  4. Abernathyite (Y: 1956) 08.EB.15
  5. AbhuriteH (IMA1983-061) 03.DA.30
  6. Abramovite (IMA2006-016) 02.HF.25a
    (IUPAC: dilead tin indium heptasulfa bismuthide)
  7. Abswurmbachite (IMA1990-007) 09.AG.05
  8. Abuite (IMA2014-084) 08.B0.?? [no] [no]
    (IUPAC: calcium dialuminium diphosphate difluoride)
  9. Acanthite (Y: 1855) 02.BA.35
    (IUPAC: disilver sulfide)
  10. Acetamide (IMA1974-039) 10.AA.20
    (IUPAC: acetic acid amide)
  11. Achalaite (IMA2013-103) 04.?? [no] [no]
  12. Achávalite (Y: 1939) 02.CC.05 [no]
  13. Acmonidesite (IMA2013-068) 07.?? [no] [no]
  14. Achyrophanite (IMA2018-011) 08.?? [no] [no]
  15. Actinolite [amphibole: IMA2012 s.p., actynolite (1794) Rd] 09.DE.10
  16. Acuminite (IMA1986-038) 03.CC.10
    (IUPAC: strontium aluminium hydro tetrafluoride monohydrate)
  17. Adachiite (IMA2012-101) 09.CK.?? [no]
  18. Adamite (Y: 1866) 08.BB.30
    (IUPAC: dizinc hydro arsenate)
  19. Adamsite-(Y) (IMA1999-020) 05.CC.30
    (IUPAC: sodium yttrium dicarbonate hexahydrate)
  20. Addibischoffite (IMA2015-006) 04.??. [no] [no]
  21. Adelite (Y: 1892) 08.BH.35
    (IUPAC: calcium magnesium hydro arsenate)
  22. Admontite (IMA1978-012) 06.FA.15
  23. Adolfpateraite (IMA2011-042) 07.?? [no]
  24. Adranosite 07.??
    1. Adranosite (IMA2008-057) 07.??
    2. Adranosite-(Fe) (IMA2011-006) 07.?? [no]
  25. Adrianite (IMA2014-028) 09.?? [no] [no]
  26. Aegirine (pyroxene: IMA1998 s.p., 1835) 09.DA.25
  27. Aegirine-augiteI (pyroxene: IMA1988 s.p., 1988 Rd) 09.DA.20 [no] [no]
  28. Aenigmatite (IMA1967 s.p., 1865) 09.DH.40
  29. Aerinite (IMA1988 s.p., 1876 Rd) 09.DB.45
  30. Aerugite (IMA1965 s.p., 1858 Rd) 08.BC.15
  31. Aeschynite 04.DF.05
    1. Aeschynite-(Ce) (IMA1987 s.p., 1830) 04.DF.05
    2. Aeschynite-(Nd) (IMA1987 s.p., 1982) 04.DF.05
    3. Aeschynite-(Y) (IMA1987 s.p., 1906) 04.DF.05
  32. Afghanite (cancrinite-sodalite: IMA1967-041) 09.FB.05
  33. Afmite (IMA2005-025a) 08.DD.15 [no]
  34. Afwillite (spurrite-afwillite: 1925) 09.AG.75
  35. Agaite (tellurium oxysalt: IMA2011-115) 07.D [no] [no]
    (IUPAC: trilead copper(II) tellurium(VI) pentaoxide dihydro carbonate)
  36. Agakhanovite-(Y) (milarite: IMA2013-090) 09.CM. [no] [no]
  37. Agardite 08.DL.15
    1. Agardite-(Ce) (IMA2003-030) 08.DL.15 [no]
    2. Agardite-(La) (IMA1980-092) 08.DL.15
    3. Agardite-(Nd) (IMA2010-056) 08.DL.15
    4. Agardite-(Y) (IMA1968-021) 08.DL.15
  38. Agmantinite (IMA2014-083) 02.??. [no] [no]
    (IUPAC: disilver manganese tetrasulfa stannide)
  39. Agrellite (IMA1973-032) 09.DH.75
  40. Agricolaite (IMA2009-081) 05.ED.50 [no] [no]
  41. Agrinierite (IMA1971-046) 04.GB.05
  42. Aguilarite (Y: 1891) 02.BA.55
    (IUPAC: tetrasilver selenide sulfide)
  43. Aheylite (IMA1984-036) 08.DD.15
  44. Ahlfeldite (Y: 1935) 04.JH.10
    (IUPAC: nickel selenite(IV) dihydrate)
  45. Ahrensite (spinel, ringwoodite: IMA2013-028) 09.AC. [no] [no]
    (IUPAC: diron tetraoxosilicate)
  46. Aikinite (meneghinite: 1843) 02.HB.05a
    (IUPAC: copper lead trisulfa bismuthide)
  47. Aiolosite (apatite: IMA2008-015) 07.BD.20 [no]
  48. Ajoite (Y: 1958) 09.EA.70
  49. Akaganéite (hollandite, priderite: IMA1962-004) 04.DK.05
  50. Akaogiite (IMA2007-058) 04.?? [no] [no]
    (IUPAC: titanium dioxide)
  51. Akatoreite (IMA1969-015) 09.BH.15
  52. Akdalaite (IMA1969-002) 04.FL.70
  53. Åkermanite (Y: 1884) 09.BB.10
  54. Akhtenskite (IMA1982-072) 04.DB.15b
    (IUPAC: manganese dioxide)
  55. Akimotoite (IMA1997-044) 04.CB.05 [no]
  56. Aklimaite (IMA2011-050) 09.?? [no]
  57. Akrochordite (Y: 1922) 08.DD.10
  58. Aksaite (IMA1967 s.p., 1962) 06.FA.05
  59. Aktashite (IMA2008 s.p., 1962) 02.GA.30

Al – An

  1. Alabandite (galena, rocksalt: 1822) 02.CD.10
    (IUPAC: manganese(II) sulfide)
  2. Alacránite (IMA1985-033) 02.FA.20
    (IUPAC: octarsenic nonasulfide)
  3. Alamosite (Y: 1909) 09.DO.20
  4. Alarsite (IMA1993-003) 08.AA.05
    (IUPAC: aluminium arsenate)
  5. Albertiniite (IMA2015-004) 04.??. [no] [no]
  6. Albite (Y: 1815) 09.FA.35
  7. Albrechtschraufite (IMA1983-078) 05.ED.15
  8. Alburnite (IMA2012-073) 02.?? [no] [no]
    (IUPAC: octasilver germanium ditelluride tetrasulfide)
  9. Alcaparrosaite (IMA2011-024) 07.?? [no]
  10. Aldermanite (IMA1980-044) 08.DE.35
  11. Aldridgeite (IMA2010-029) 07.?? [no] [no]
  12. Aleksandrovite (IMA2009-004) 09.CJ.25 [no]
  13. Aleksite (aleksite: IMA1977-038) 02.GC.40a
    (IUPAC: lead dibismuth ditelluride disulfide)
  14. Aleutite (IMA2018-014) 08.?? [no] [no]
  15. Alexkhomyakovite (IMA2015-013) 05.DA.?? [no] [no]
  16. Alflarsenite (zeolitic tectosilicate: IMA2008-023) 09.G
  17. Alforsite (apatite: IMA1980-039) 08.BN.05
    (IUPAC: pentabarium triphosphate chloride)
  18. Alfredopetrovite (IMA2015-026) 04.??. [no] [no]
  19. Alfredstelznerite (IMA2007-050) 06.D0.??
  20. Algodonite (metalloid alloy: 1857) 02.AA.10a
  21. Aliettite (Y: 1968? Rd) 09.EC.60
  22. Allabogdanite (barringerite: IMA2000-038) 01.BD.15 [no]
    (IUPAC: di(iron,nickel) phosphide)
  23. Allactite (IMA1980 s.p., 1884) 08.BE.30
    (IUPAC: dimanganese(II) diarsenate octahydroxyl)
  24. Allanite 09.BG.05b
    1. Allanite-(Ce) (epidote: IMA1987 s.p., 1811) 09.BG.05b
    2. Allanite-(La) (epidote: IMA2003-065) 09.BG.05b
    3. Allanite-(Nb) (epidote: IMA2010-060) 09.BG.05b [no] [no]
    4. Allanite-(Y) (epidote: IMA1966 s.p., 1949) 09.BG.05b [no]
  25. Allanpringite (IMA2004-050) 08.DC.50 [no]
    (IUPAC: triron(III) diphosphate trihydrohyl pentahydrate)
  26. Allargentum (metalloid alloy: IMA1970 s.p., 1950 Rd) 02.AA.30
  27. Alleghanyite (Y: 1932) 09.AF.45
  28. Allendeite (IMA2007-027) 04.?? [no]
  29. Allochalcoselite (IMA2004-025) 04.JG.40
  30. Alloclasite (Y: 1865) 02.EB.10b
    (IUPAC: cobalt arsenic sulfide)
  31. Allophane (Y: 1816) 09.ED.20
  32. Alloriite (IMA2006-020) 09.FB.05
  33. Alluaivite (eudialyte: IMA1988-052) 09.CO.10
  34. Alluaudite (IMA1979 s.p., 1848 Rd) 08.AC.10
  35. Almandine (garnet: old/ 1546?) 09.AD.25
  36. Almarudite (milarite: IMA2002-048) 09.CM.05 [no]
  37. Almeidaite (IMA2013-020) 04.C? [no] [no]
  38. Alnaperbøeite-(Ce) (gatelite: IMA2012-054) 09.B? [no] [no]
  39. Alpeite (IMA2016-072) 09.B?. [no] [no]
  40. Alpersite (IMA2003-040) 07.CB.35 [no] [no]
  41. Alsakharovite-Zn (labuntsovite: IMA2002-003) 09.CE.30h [no]
  42. Alstonite (Y: 1841) 05.AB.35
    (IUPAC: barium calcium dicarbonate)
  43. Altaite (galena, rocksalt: 1845) 02.CD.10
    (IUPAC: lead telluride)
  44. Althausite (IMA1974-050) 08.BB.25
    (IUPAC: dimagnesium phosphate hydroxyl)
  45. Althupite (IMA1986-003) 08.EC.25
  46. Altisite (IMA1993-055) 09.DP.40 [no]
  47. Alum (chemical compound)
    1. Alum-(K) (IMA2007 s.p., 1951) 07.CC.20
      (IUPAC: potassium aluminium disulfate dodecahydrate)
    2. Alum-(Na) (IMA2007 s.p., 1951) 07.CC.20
      (IUPAC: sodium aluminium disulfate dodecahydrate)
  48. Aluminite (Y: old/ 1805) 07.DC.05
    (IUPAC: dialuminium sulfate tetrahydroxyl heptahydrate)
  49. Aluminium (IMA1980-085a) 01.AA.05
  50. Aluminoceladonite (mica: IMA1998 s.p.) 09.EC.15 [no]
  51. Aluminocerite-(Ce) (IMA2007-060) 09.AG.20 [no]
  52. Aluminocopiapite (Y: 1947) 07.DB.35
  53. Aluminocoquimbite (IMA2009-095) 07.CB.50 [no]
    (IUPAC: aluminium iron trisulfate nonahydrate)
  54. Aluminomagnesiohulsite (IMA2002-038) 06.AB.45 [no]
  55. Aluminopyracmonite (IMA2012-075) 07.?? [no] [no]
    (IUPAC: triammonium aluminium trisulfate)
  56. Alumovesuvianite (IMA2016-014) 09.B? [no] [no]
  57. Alumoåkermanite (IMA2008-049) 09.BB.10
  58. Alumoedtollite (IMA2017-020) 08.?? [no] [no]
  59. Alumohydrocalcite (IMA1980 s.p., 1926) 05.DB.05
    (IUPAC: calcium dialuminium dicarbonate tetrahydroxyl trihydrate)
  60. Alumoklyuchevskite (IMA1993-004) 07.BC.45
  61. Alumotantite (IMA1980-025) 04.DB.55
    (IUPAC: aluminium tantalum tetraoxide)
  62. Alunite (alunite: IMA1987 s.p., 1565 Rd) 07.BC.10
    (IUPAC: potassium trialuminium hexahydro disulfate)
  63. Alunogen (Y: 1832) 07.CB.45
  64. Alvanite (IMA1962 s.p., 1959) 08.FE.05
  65. Alwilkinsite-(Y) (IMA2015-097) 07.?? [no] [no]
  66. Amakinite (brucite: IMA1967 s.p., 1962) 04.FE.05
    (IUPAC: iron(II) dihydroxide)
  67. Amarantite (Y: 1888) 07.DB.30
  68. Amarillite (Y: 1933) 07.CC.75
    (IUPAC: sodium iron(III) disulfate hexahydrate)
  69. Amblygonite (Y: 1818) 08.BB.05
    (IUPAC: lithium aluminium phosphate fluoride)
  70. Ambrinoite (IMA2009-071) 02.HE.10 [no] [no]
  71. Ameghinite (IMA1966-034) 06.CA.10
  72. Amesite (Y: 1876) 09.ED.15
  73. Amicite (zeolitic tectosilicate: IMA1979-011) 09.GC.05
  74. Aminoffite (Y: 1937) 09.BH.05
  75. Ammineite (IMA2008-032) 03.CO.?? [no] [no]
    (IUPAC: copper dichloride diammine)
  76. Ammonioalunite (alunite: IMA1986-037) 07.BC.10
    (IUPAC: ammonium trialuminium hexahydroxy disulfate)
  77. Ammonioborite (Y: 1931) 06.EA.15
  78. Ammoniojarosite (alunite: IMA1987 s.p., 1927 Rd) 07.BC.10
    (IUPAC: ammonium triron(III) hexahydro disulfate)
  79. Ammoniolasalite (IMA2017-094)
  80. Ammonioleucite (zeolitic tectosilicate: IMA1984-015) 09.GB.05
  81. Ammoniomagnesiovoltaite (IMA2009-040) 07.CC.25 [no]
    (For an overview of the amphibole supergroup see here)
  82. Ammoniomathesiusite (IMA2017-077) [no] [no]
  83. Ammoniovoltaite (IMA2017-022) 07.?? [no] [no]
  84. Ammoniozippeite (zippeite: IMA2017-073) 07. [no] [no]
  85. Amstallite (IMA1986-030) 09.DP.25
  86. Analcime (zeolitic tectosilicate: IMA1997 s.p., 1797) 09.GB.05
  87. Anandite (mica: IMA1966-005) 09.EC.35
  88. Anapaite (Y: 1902) 08.CH.10
    (IUPAC: dicalcium iron(II) diphosphate tetrahydrate)
  89. Anatase (IMA1962 s.p., 1801) 04.DD.05
    (IUPAC: titanium dioxide)
  90. Anatolyite (IMA2016-040) 08.?? [no] [no]
  91. Ancylite 05.DC.05
    1. Ancylite-(Ce) (IMA1987 s.p., 1901) 05.DC.05
      (IUPAC: cerium strontium dicarbonate hydroxyl monohydrate)
    2. Ancylite-(La) (IMA1995-053) 05.DC.05
      (IUPAC: lanthanum strontium dicarbonate hydroxyl monohydrate)
  92. Andalusite (Y: 1798) 09.AF.10
  93. Andersonite (Y: 1951) 05.ED.30
  94. Andorite 02.JB.40a
    1. Andorite IV (lillianite: quatrandorite and sundtit, 1893, 1954) 02.JB.40a
    2. Andorite VI (lillianite: senandorite, 1892) 02.JB.40a [no]
  95. Andradite (garnet: 1800) 09.AD.25
  96. Andreadiniite (lillianite: IMA2014-049) 02. [no] [no]
    (IUPAC: copper mercury heptasilver heptalead octatetracontasulfa tetraicosantimonide)
  97. Andrémeyerite (IMA1972-005) 09.BB.20
  98. Andreyivanovite (phosphide: IMA2006-003) 01.BD.15 [no]
    (IUPAC: iron chromium phosphide)
  99. Andrianovite (eudialyte: IMA2007-008) 09.CO.10 [no] [no]
  100. Anduoite (Y: 1979) 02.EB.15a
    (IUPAC: ruthenium diarsenide)
  101. Andychristyite (tellurium oxysalt: IMA2015-024) 07.C [no] [no]
    (IUPAC: lead copper(II) tellurium(VI) pentaoxide (water))
  102. Andyrobertsite (IMA1997-023) 08.DH.50
  103. Angarfite (IMA2010-082) 08.?? [no]
  104. Angastonite (IMA2008-008) 08.DL.25 [no]
    (IUPAC: calcium magnesium dialuminium diphosphate tetrahydroxyl heptahydrate)
  105. Ángelaite (IMA2003-064) 02.JB.25f [no]
    (IUPAC: dicopper silver lead bismuth tetrasulfide)
  106. Angelellite (IMA1962 s.p., 1959) 08.BC.05
  107. Anglesite (Y: 1832) 07.AD.35
    (IUPAC: lead sulfate)
  108. Anhydrite (Y: 1795) 07.AD.30
    (IUPAC: anhydrous calcium sulfate)
  109. AnhydrokainiteQ (Y: 1912) 07.BC.80 [no] [no]
    (IUPAC: potassium magnesium sulfate chloride)
  110. Anilite (IMA1968-030) 02.BA.10
    (IUPAC: heptacopper tetrasulfide)
  111. Ankerite (Y: 1825) 05.AB.10
    (IUPAC: calcium iron(II) dicarbonate)
  112. Ankinovichite (IMA2002-063) 08.FE.05
  113. Annabergite (vivianite: 1852) 08.CE.40
    (IUPAC: trinickel diarsenate octahydrate)
  114. Annite (mica: IMA1998 s.p., 1868) 09.EC.20
    (IUPAC: potassium triiron(II) (aluminodecaoxytrisilicate) dihydroxy)
  115. AnniviteQ (tennantite: IMA2008 s.p., 1854) 02.?? [no] [no]
    (Cu6[Cu4(Fe,Zn)2](Bi,Sb,As)4S13)
  116. Anorpiment (IMA2011-014) 02.?? [no]
    (IUPAC: diarsenic trisulfide)
  117. Anorthite (Y: 1824) 09.FA.35
  118. AnorthoclaseI (Y: 1885) 09.FA.30
  119. Anorthominasragrite (IMA2001-040) 07.DB.20 [no]
  120. Ansermetite (IMA2002-017) 04.HD.30 [no]
  121. Antarcticite (IMA1965-015) 03.BB.30
    (IUPAC: calcium dichloride hexahydrate)
  122. Anthoinite (Y: 1947) 07.GB.35
  123. Anthonyite (IMA1967 s.p., 1946) 03.DA.40
    (IUPAC: copper(II) hydroxide trihydrate)
  124. Anthophyllite [amphibole: IMA2012 s.p., 1801 Rd] 09.DE.05
  125. Antigorite (IMA1998 s.p., 1840 Rd) 09.ED.15
  126. Antimonselite (IMA1992-003) 02.DB.05
    (IUPAC: diantimony triselenide)
  127. Antimony (arsenic: 1748) 01.CA.05
  128. Antipinite (IMA2014-027) 10.?? [no] [no]
  129. Antlerite (IMA1968 s.p., 1889) 07.BB.15
    (IUPAC: tricopper(II) sulfate tetrahydroxyl)
  130. Anyuiite (khatyrkite: IMA1987-053) 01.AA.15
    (IUPAC: gold dilead alloy)
  131. Anzaite-(Ce) (IMA2013-004) 04.?? [no] [no]

Ap – Az

  1. Apachite (IMA1979-022) 09.HE.10
    (For the apatite series, see hydroxylapatite, fluorapatite, and chlorapatite)
  2. Apexite (IMA2015-002) 08.??. [no] [no]
    (IUPAC: sodium magnesium phosphate nonahydrate)
  3. Aphthitalite (Y: 1813) 07.AC.35
    (IUPAC: tripotassium sodium disulfate)
  4. Apjohnite (Y: 1847) 07.CB.85
  5. Aplowite (IMA1963-009) 07.CB.15
    (IUPAC: cobalt(II) sulfate tetrahydrate)
  6. Apuanite (IMA1978-069) 04.JA.25
  7. Aqualite (eudialyte: IMA2002-066) 09.CO.10
  8. Aradite (IMA2013-047) 08.?? [no] [no]
    (Chemical formula: BaCa6[(SiO4)(PO4)](VO4)2F)
  9. Aragonite (Y: 1788) 05.AB.15
    (IUPAC: calcium carbonate)
  10. Arakiite (IMA1998-062) 08.BE.45
  11. Aramayoite (Y: 1926) 02.HA.25
  12. Arangasite (IMA2012-018) 08.?? [no]
    (IUPAC: dialuminium sulfate phosphate fluoride (7.5)hydrate)
  13. Arapovite (IMA2003-046) 09.CH.10
  14. Aravaipaite (IMA1988-021) 03.DC.35
    (IUPAC: trilead aluminium nonafluoride monohydrate)
  15. Arcanite (Y: 1845) 07.AD.05
    (IUPAC: dipotassium sulfate)
  16. Archerite (IMA1975-008) 08.AD.15
    (IUPAC: potassium phosphoric acid)
  17. Arctite (IMA1980-049) 08.BN.10
    (IUPAC: pentasodium heptacalcium barium hexaphosphate trifluoride)
  18. Arcubisite (IMA1973-009) 02.LA.40
    (IUPAC: hexasilver copper bismuth tetrasulfide)
  19. Ardaite (IMA1979-073) 02.LB.30
  20. Ardealite (Y: 1932) 08.CJ.50
  21. Ardennite 09.BJ.40
    1. Ardennite-(As) (IMA2007 s.p., 1872) 09.BJ.40
    2. Ardennite-(V) (IMA2005-037) 09.BJ.40
  22. Arfvedsonite [amphibole: IMA2012 s.p., arfwedsonite (1823) Rd] 09.DE.25
  23. Argandite (IMA2010-021) 08.BE.30 [no] [no]
    (IUPAC: heptamanganese divanadate octahydroxyl)
  24. Argentobaumhauerite (IMA2015-F, IMA1988-051) 02.HC.05b
  25. Argentodufrénoysite (IMA2016-046) 02.?? [no] [no]
  26. Argentojarosite (alunite: IMA1987 s.p., 1923 Rd) 07.BC.10
    (IUPAC: silver triron(III) hexahydro disulfate)
  27. Argentoliveingite (IMA2016-029) 02.?? [no] [no]
  28. Argentopentlandite (pentlandite: IMA1970-047) 02.BB.15
  29. Argentopyrite (Y: 1866) 02.CB.65
    (IUPAC: silver diron trisulfide)
  30. Argentotennantite (tennantite: IMA1985-026) 02.GB.05
    (Ag6[Cu4(Fe,Zn)2]As4S13)
  31. Argentotetrahedrite (IMA2016-093) 02.?? [no] [no]
  32. Argesite (IMA2011-072) 03.?? [no] [no]
  33. Argutite (IMA1980-067) 04.DB.05
    (IUPAC: germanium dioxide)
  34. Argyrodite (Y: 1886) 02.BA.70
    (IUPAC: octasilver germanium hexasulfide)
  35. Arhbarite (IMA1981-044) 08.BE.25
    (IUPAC: dicopper magnesium arsenate trihydroxyl)
  36. Ariegilatite (IMA2016-100) 09.A?. [no] [no]
  37. Arisite 05.BD.18
    1. Arisite-(Ce) (IMA2009-013) 05.BD.18 [no]
    2. Arisite-(La) (IMA2009-019) 05.BD.18 [no]
  38. Aristarainite (IMA1973-029) 06.FB.05
  39. Armalcolite (IMA1970-006 Rd) 04.CB.15
  40. Armangite (Y: 1920) 04.JB.20
  41. Armbrusterite (IMA2005-035) 09.EG.65 [no]
  42. Armenite (milarite: 1939) 09.CM.05
  43. Armstrongite (IMA1972-018) 09.EA.35
  44. Arrojadite 08.BF.05
    Note: arrojadite group, see here as well.
    1. Arrojadite-(BaFe) (IMA1994-033) 08.BF.05
    2. Arrojadite-(BaNa) (IMA2014-071) 08.BF.05 [no] [no]
    3. Arrojadite-(KFe) (IMA2005 s.p., 1925) 08.BF.05
    4. Arrojadite-(KNa) (IMA2005-047) 08.BF.05
    5. Arrojadite-(PbFe) (IMA2005-056) 08.BF.05 [no]
    6. Arrojadite-(SrFe) (IMA2005-032) 08.BF.05 [no]
  45. Arsenatrotitanite (IMA2016-015) 08.?? [no] [no]
  46. Arsenbrackebuschite (IMA1977-014) 08.BG.05
  47. Arsendescloizite (IMA1979-030) 08.BH.35
  48. Arsenic (arsenic: old) 01.CA.05
  49. Arseniopleite (IMA1967 s.p., 1888) 08.AC.10
  50. Arseniosiderite (Y: 1842) 08.DH.30
  51. Arsenmarcobaldiite (IMA2016-045) 02.?? [no] [no]
  52. Arsenmedaite (IMA2016-099) 09.B?. [no] [no]
  53. Arsenoclasite (Y: 1931) 08.BD.10
    (IUPAC: pentamanganese(II) diarsenate tetrahydroxyl)
  54. Arsenocrandallite (alunite: IMA1980-060) 08.BL.10
    (IUPAC: calcium trialuminium hexahydro arsenate hydroxoarsenate)
  55. Arsenoflorencite 08.BL.13
    (IUPAC: REE trialuminium hexahydro diarsenate)
    1. Arsenoflorencite-(Ce) (alunite: IMA1985-053) 08.BL.13
    2. Arsenoflorencite-(La) (alunite: IMA2009-078) 08.BL.13
  56. Arsenogorceixite (alunite: IMA1989-055) 08.BL.10
    (IUPAC: barium trialuminium hexahydro arsenate hydroxoarsenate)
  57. Arsenogoyazite (alunite: IMA1983-043) 08.BL.10
    (IUPAC: strontium trialuminium hexahydro arsenate hydroxoarsenate)
  58. Arsenohauchecornite (IMA1978-E) 02.BB.10
  59. Arsenohopeite (IMA2010-069) 08.?? [no]
    (IUPAC: trizinc diarsenate tetrahydrate)
  60. Arsenolamprite (Y: 1886) 01.CA.10
  61. Arsenolite (Y: 1854) 04.CB.50
    (IUPAC: diarsenic trioxide)
  62. Arsenopalladinite (IMA1973-002a, 1957 Rd) 02.AC.10c
  63. Arsenopyrite (IMA1962 s.p., 1847) 02.EB.20
    (IUPAC: iron arsenide sulfide)
  64. Arsenovanmeerscheite (IMA2006-018) 08.EC.20 [no]
  65. Arsenowagnerite (IMA2014-100) 08.??. [no] [no]
    (IUPAC: dimagnesium arsenate fluoride)
  66. Arsenquatrandorite (lillianite: IMA2012-087) 02.?? [no] [no]
  67. Arsentsumebite (Y: 1935?) 08.BG.05
  68. Arsenuranospathite (IMA1982 s.p.?, 1978) 08.EB.25
  69. Arsenuranylite (Y: 1958) 08.EC.10
  70. Arsiccioite (IMA2013-058) 02.??. [no]
    (IUPAC: silver dimercury thallium diarsenide hexasulfide)
  71. Arsmirandite (IMA2014-081) 08.??. [no] [no]
  72. Arthurite (IMA1964-002) 08.DC.15
  73. Artinite (Y: 1902) 05.DA.10
    (IUPAC: dimagnesium carbonate dihydroxyl trihydrate)
  74. Artroeite (IMA1993-031) 03.CC.15
  75. Artsmithite (IMA2002-039) 08.BO.40
  76. Arupite (vivianite: IMA1988-008) 08.CE.40
    (IUPAC: trinickel diphosphate octahydrate)
  77. ArzakiteN (Y: 1985) 02.FC.15a
  78. ArzruniteQ (Y: 1899) 07.?? [no] [no]
    Note: It might be a mixture.
  79. Asbecasite (IMA1965-037) 04.JB.30
  80. Asbolane (Y: 1841) 04.FL.30
  81. Aschamalmite (lillianite: IMA1982-089) 02.JB.40b
  82. Ashburtonite (cerchiaraite: IMA1990-033) 09.CF.05
  83. Ashcroftine-(Y) (IMA1967 s.p., 1933) 09.DN.15
  84. Ashoverite (hydroxide: IMA1986-008) 04.FA.10
    (IUPAC: zinc dihydroxide)
  85. Asisite (IMA1987-003) 03.DB.40
  86. Åskagenite-(Nd) (epidote: IMA2009-073) 09.BG.05b [no]
  87. Aspedamite (polyoxometalate: IMA2011-056) 04. [no]
  88. Aspidolite (mica: IMA2004-049 Rd) 09.EC.20 [no]
  89. Asselbornite (IMA1980-087) 08.ED.10
  90. Astrocyanite-(Ce) (IMA1989-032) 05.EF.05 l]
  91. Atacamite (Y: 1803) 03.DA.10a
    (IUPAC: dicopper trihydro chloride)
  92. Atelestite (Y: 1832) 08.BO.15
  93. Atelisite-(Y) (zircon: IMA2010-065) 09.?? [no]
  94. Atencioite (IMA2004-041) 08.DA.10 [no]
  95. Athabascaite (IMA1969-022) 02.BA.25
    (IUPAC: pentacopper tetraselenide)
  96. Atheneite (IMA1973-050) 02.AC.05a
    (IUPAC: dipalladium arsenide)
  97. Atlasovite (IMA1986-029) 07.BC.20
  98. Atokite (auricupride: IMA1974-041) 01.AG.10
    (IUPAC: tripalladium stannide)
  99. Attakolite (IMA1992 s.p., 1868 Rd) 08.BH.60
  100. Attikaite (IMA2006-017) 08.DJ.45
  101. Aubertite (IMA1978-051) 07.DB.05
  102. Augelite (Y: 1868) 08.BE.05
    (IUPAC: dialuminium trihydroxy phosphate)
  103. AugiteI (pyroxene: IMA1988 s.p., 1792) 09.DA.15
  104. Auriacusite (IMA2009-037) 08.BB.30 [no]
  105. Aurichalcite (Y: 1839) 05.BA.15
    (IUPAC: pentazinc hexahydroxy dicarbonate)
  106. Auricupride (auricupride: 1950) 01.AA.10a
    (IUPAC: tricopper gold alloy)
  107. Aurihydrargyrumite (amalgam: IMA2017-003) 01.AD. [no] [no]
  108. Aurivilliusite (IMA2002-022) 03.DD.50
  109. Aurorite (IMA1966-031) 04.FL.20
  110. Aurostibite (pyrite: 1952) 02.EB.05a
    (IUPAC: gold diantimonide)
  111. Austinite (Y: 1935) 08.BH.35
    (IUPAC: calcium zinc hydroxy arsenate)
  112. Autunite (Y: 1852) 08.EB.05
    (IUPAC: calcium diuranyl diphosphate undecahydrate)
  113. Avdoninite (IMA2005-046a) 03.DA.55
  114. Averievite (IMA1995-027) 08.BB.85
  115. Avicennite (Y: 1958) 04.CB.10
    (IUPAC: dithallium trioxide)
  116. Avogadrite (fluoroborate: 1926) 03.CA.10
    (IUPAC: potassium tetrafluoroborate)
  117. Awaruite (auricupride: 1885) 01.AE.20
    (IUPAC: trinickel iron alloy)
  118. Axelite (IMA2017-015a) 08.?? [no] [no]
  119. Axinite 09.BD.20
    1. Axinite-(Fe) (IMA1968 s.p., 1911) 09.BD.20
    2. Axinite-(Mg) (IMA1975-025) 09.BD.20
    3. Axinite-(Mn) (Y: 1909) 09.BD.20
  120. Azoproite (IMA1970-021) 06.AB.30
  121. Azurite (Y: old/ 1824) 05.BA.05
    (IUPAC: tricopper dihydroxy dicarbonate)
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