A Listing of Minerals

[A Minerals] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] [X] [Y] [Z] 

A Mineral Index (383 Count)

This alphabetical listing of A minerals include synonyms of accepted mineral names, pronunciation of that name, name origins, and locality information.

LEGEND: Valid Species (Bold);  Pronunciation;  Mineral Image;  Mineral Image Gallery;  jCrystal Form;  jPOWD Form;          Calculated Radioactive Intensity

A Mineral Pages: [1] [2] [3] [4] [5]

Ab100 - See Albite REMARKS: Plagioclase Solid Solution Series (100% to 95% Albite + 0% to 5% Anorthite) Ab20 - See Bytownite REMARKS: Plagioclase Solid Solution Series (15% to 25% Albite + 85% to 75% Anorthite) Ab40 - See Labradorite REMARKS: Plagioclase Solid Solution Series (35% to 45% Albite + 65% to 55% Anorthite) Ab60 - See Andesine REMARKS: Plagioclase Solid Solution Series (55% to 65% Albite + 45% to 35% Anorthite) Ab80 - See Oligoclase REMARKS: Plagioclase Solid Solution Series (75% to 85% Albite + 25% to 15% Anorthite) Abelsonite   Ni++C31H32N4 Approved IMA 1975 NAME ORIGIN: Named after Philip H. Abelson, president, the Carnegie Institution, Washington, DC, a pioneer in organic geochemistry. Abenakiite-(Ce)    Na26REE6(SiO3)6(PO4)6(CO3)6(S++++O2)O Approved IMA 1994 NAME ORIGIN: For the Abenaki Indian tribe, which inhabited the area around Mont Saint-Hilaire. Abernathyite     K(UO2)(AsO4)·4(H2O) Valid Species (Pre-IMA) 1956 NAME ORIGIN: Named for Jess Abernathy, Moab, Utah, mine owner who found the first specimens. Abhurite    Sn3O(OH)2Cl2 Approved IMA 1983 NAME ORIGIN: Named for its locality. LOCALITY: Sharm Abhur, a cove in the Red Sea, Saudi Arabia, Jiddah, Red Sea Abramovite  Pb2SnInBiS7 Approved IMA 2006 (Dana # Added) NAME ORIGIN: Named for Dmitry Abramov, Russian mineralogist. Abrazite - See Gismondine Abrazite - See Phillipsite-Ca Abrazite - See Phillipsite-K Abrazite - See Phillipsite-Na Abswurmbachite    Cu++Mn+++6SiO12 Approved IMA 1991 NAME ORIGIN: Named for Irmgard Abs-Wurmbach (1938-), German mineralogist. Abukumalite - See Britholite-(Y) Acadialite - See Chabazite-Ca Acanthite    Ag2S Valid Species (Pre-IMA) 1855 NAME ORIGIN: From the Greek, akanta, meaning "arrow." After the Latin, argentum, meaning "silver". Argentite is stable above 179 C. Acanthite is stable below 179 deg. C. Acetamide    CO(CH3)(NH2) Approved IMA 1975 NAME ORIGIN: For ACETic acid and AMIDE, for ammonia in its composition. Achavalite  FeSe Valid Species (Pre-IMA) 1939 (Dana # Added) NAME ORIGIN: Named for L. Achaval. Achiardite - See Dachiardite-Ca Achiardite - See Dachiardite-Na Achroite - See Elbaite REMARKS: Colorless tournaline Achtarandite - See Mayenite REMARKS: Pseudomorph, probably after mayenite. Acicular iron ore - See Goethite Acmite - See Aegirine Actinolite    Ca2(Mg,Fe++)5Si8O22(OH)2 Valid Species (Pre-IMA) 1794 NAME ORIGIN: From the Greek, aktinos, meaning "ray" in allusion to actinolite's fibrous nature. Acuminite   SrAlF4(OH)·(H2O) Approved IMA 1987 NAME ORIGIN: From the Latin acuminis, sharp point, for spear head, the characteristic shape of the crystals. Adamite     Zn2(AsO4)(OH) Valid Species (Pre-IMA) 1866 NAME ORIGIN: Named after the French mineralogist Gilbert Joseph Adam (1795-1881). Adamsite-(Y)    NaY(CO3)2·6(H2O) Approved IMA 1999 (Dana # Added) NAME ORIGIN: Named for Professor Frank Dawson Adams (1859-1942) of McGill University, Montreal, Quebec. Adelite    CaMg(AsO4)(OH) Valid Species (Pre-IMA) 1804 NAME ORIGIN: From the Greek for indistinct, for its occurrence as massive. Adipite - See Chabazite-Ca Admontite   MgB6O10·7(H2O) Approved IMA 1979 NAME ORIGIN: For Admont, Austria, near the original locality. LOCALITY: Austria, Schidmaur, near Admont Adranosite (NH4)4NaAl2(SO4)4Cl(OH)2 Proposed IMA 2009 NAME ORIGIN: Commission on New Minerals, Nomenclature and Classification (CNMNC) Adularia - See Orthoclase Aedelforsite - See Stilbite-Na Aedelforsite - See Laumontite Aedelforsite - See Stilbite-Ca Aedelite - See Natrolite Aegirine     NaFe+++Si2O6 Valid Species (Pre-IMA) 1835 NAME ORIGIN: Named after the Teutonic god of the sea. Acmite is from the Greek "point" in allusion to the pointed crystals. Aegirine-augite    (Ca,Na)(Mg,Fe++,Fe+++)[Si2O6] Not Approved IMA 1950 NAME ORIGIN: Name derived from its intermediate pyroxene composition. This is not an end-member species. Aenigmatite    (Na,Ca)4(Fe++,Ti,Mg)12Si12O40 Valid Species (Pre-IMA) 1865 NAME ORIGIN: From the Greek for riddle, apparently an allusion to its (formerly) uncertain chemical composition. Aerinite    (Ca,Na)6FeAl(Fe++,Mg)2(Al,Mg)6[Si12O36(OH)12H][(H2O)12(CO3)] Valid Species (Pre-IMA) 1876 NAME ORIGIN: Named from the Greek root "aer-", alluding to atmosphere or sky and hence the color, sky blue. Aerugite    ([ ],Ni)9(AsO4)2(AsO6) (?) Valid Species (Pre-IMA) 1858 NAME ORIGIN: Named from the Greek for 'copper rust', in allusion to its appearance. Aeschynite-(Ce)     (Ce,Ca,Fe)(Ti,Nb)2(O,OH)6 Valid Species (Pre-IMA) 1828 NAME ORIGIN: Named for its composition and from the Greek for "shame," in allusion to the inability of chemists, at the time of its discovery, to separate some of its constituents. Aeschynite-(Ce) - See Nioboaeschynite-(Ce) Aeschynite-(Nd)   (Nd,Ce)(Ti,Nb)2(O,OH)6 Approved IMA 1982 NAME ORIGIN: Named for its composition and from the Greek for "shame," in allusion to the inability of chemists, at the time of its discovery, to separate some of its constituents. Aeschynite-(Y)     (Y,Ca,Fe)(Ti,Nb)2(O,OH)6 Approved IMA 1966 NAME ORIGIN: Named for its composition and from the Greek for "shame," in allusion to the inability of chemists, at the time of its discovery, to separate some of its constituents. Afghanite     (Na,Ca,K)8(Si,Al)12O24(SO4,Cl,CO3)3·(H2O) Approved IMA 1968 NAME ORIGIN: From its locality. LOCALITY: Sar-e-Sang luzurite deposit in Afghanistan. Afwillite    Ca3Si2O4(OH)6 Valid Species (Pre-IMA) 1925 NAME ORIGIN: For Alpheus Fuller Williams (1874-1953), General Manager, DeBeers Consolidated Mines, Kimberley, South Africa. Agardite-(Ca)   CaCu6(AsO4)3(OH)6·3(H2O) Not Approved IMA (Dana # Added) NAME ORIGIN: Named for the composition and for Jules Agard, Geologist, Bureau de Recherches Geologiques et Minieres, Orleans, France. Agardite-(Ce)     (Ce,Ca)Cu6(AsO4)3(OH)6·3(H2O) Approved IMA 2004 (Dana # Added) NAME ORIGIN: Named as the Ce-dominant analog of agardite-(La) and agardite-(Y). Agardite-(Dy)   (Dy,La,Ca)Cu6(AsO4)3(OH)6·3(H2O) Not Approved IMA (Dana # Added) NAME ORIGIN: Named for the composition and for Jules Agard, Geologist, Bureau de Recherches Geologiques et Minieres, Orleans, France. Agardite-(La)    (La,Ca)Cu6(AsO4)3(OH)6·3(H2O) Approved IMA 1985 (Dana # Added) NAME ORIGIN: Named for the composition and for Jules Agard, Geologist, Bureau de Recherches Geologiques et Minieres, Orleans, France. Agardite-(Nd)    (Pb,Nd,Y,La,Ca)Cu6(AsO4)3(OH)6·3(H2O) Not Approved IMA (Dana # Added) NAME ORIGIN: Named for the composition and for Jules Agard, Geologist, Bureau de Recherches Geologiques et Minieres, Orleans, France. Agardite-(Y)   (Y,Ca)Cu6(AsO4)3(OH)6·3(H2O) Approved IMA 1969 NAME ORIGIN: Named for the composition and for Jules Agard, Geologist, Bureau de Recherches Geologiques et Minieres, Orleans, France. Agnolite - See Inesite Agrellite    NaCa2Si4O10F Approved IMA 1976 NAME ORIGIN: Named for Stuart O. Agrell, British mineralogist, Cambridge University. Agrinierite     (K2,Ca,Sr)U3O10·4(H2O) Approved IMA 1971 NAME ORIGIN: Named for Henri Agrinier (1928-1971), an engineer in the Mineralogy Laboratory if the French Atomic Energy Commission, Paris, France. Aguilarite   Ag4SeS Valid Species (Pre-IMA) 1891 NAME ORIGIN: Named for Ponciano Aguilar (1853-1935), superintendent of the San Carlos mine, Guanajuato, where the mineral was found. Aheylite   (Fe++,Zn)Al6(PO4)4(OH)8·4(H2O) Approved IMA 1986 NAME ORIGIN: Named for Allen V. Heyl (1918-), economic geologist, U. S. Geological Survey. Ahlfeldite     (Ni,Co)SeO3·2(H2O) Valid Species (Pre-IMA) 1935 NAME ORIGIN: Named for Federico Ahlfeld (1892-192), German-Bolivian geologist and mineralogist who studied Bolivian minerals. Aikinite    PbCuBiS3 Valid Species (Pre-IMA) 1843 NAME ORIGIN: For Dr. Arthur Aikin (1773-1854), a founder and long-time Secretary of the Geological Society of London, England. Aiolosite Na4Bi(SO4)3Cl Proposed IMA 2008 (Dana # Added) NAME ORIGIN: Named after the locality. LOCALITY: La Fossa crater, Vulcano, Aeolian Islands, Italy Ajoite     (K,Na)3Cu20Al3Si29O76(OH)16·~8(H2O) Valid Species (Pre-IMA) 1958 NAME ORIGIN: Named for the locality. LOCALITY: New Cornelia mine, Ajo, Pima County,, Arizona, USA. Akaganeite    Fe+++(O,OH,Cl) Approved IMA 1961 NAME ORIGIN: Named for the locality. LOCALITY: Akagane mine, Iwate Prefecture, Japan. Akatoreite    (Mn++,Fe++)9Al2Si8O24(OH)8 Approved IMA 1971 NAME ORIGIN: Named for the locality. LOCALITY: In New Zealand, three km south of Akatore Creek, east Otago, South Island. From Norberg, Sweden. Akdalaite    5(Al2O3)·(H2O) Approved IMA 1970 NAME ORIGIN: Named for the Kazakh name for the locality. LOCALITY: Solvech fluorite deposit, Karaganda region, Kazakhstan, Akdala. Akermanite    Ca2MgSi2O7 Valid Species (Pre-IMA) 1884 NAME ORIGIN: For Anders Richard Akerman (1837-1922), Swedish metallurgist. Akhtenskite   Mn++++O2 Approved IMA 1979 NAME ORIGIN: For the Akhtensk deposit, Russia, where it was first noted. Akimotoite    (Mg,Fe)SiO3 Approved IMA 1998 (Dana # Added) NAME ORIGIN: Named after Syun-iti Akimoto (b. 1925), of the Institute of Geophysics and Solid State Physics, University of Tokyo, specialist in high-pressure research, especially on phase relationships in the system (Mg,Fe)2 SiO4 at mantle conditions. Akrochordite    Mn4Mg(AsO4)2(OH)4·4(H2O) Valid Species (Pre-IMA) 1922 NAME ORIGIN: From the Greek for wart, for its typical habit. Aksaite    MgB6O7(OH)6·2(H2O) Approved IMA 1962 NAME ORIGIN: Named for the locality. LOCALITY: Chelkar, Ak-Sai Valley, Uralsk district, Kazakhstan. Aktashite    Cu6Hg3As4S12 Approved IMA 1968 NAME ORIGIN: Named after the locality. LOCALITY: Gal-Kyaya deposit, Yakutia, and Aktash deposit, Altai Mts., Russia. Akyltetrahrdrophenanthrene - See Simonellite Alabandite    MnS Valid Species (Pre-IMA) 1842 NAME ORIGIN: Named after its locality Alabanda, Turkey. LOCALITY: Turkey, Aydin, Alabanda Alabaster - See Gypsum Alacranite    As8S9 Approved IMA 1986 NAME ORIGIN: For the occurrence in the Alacran deposit, Chile. Alamosite    PbSiO3 Valid Species (Pre-IMA) 1909 NAME ORIGIN: For the Mexican type locality at Alamos. LOCALITY: From Mexico, in Sonora, at Alamos, and the San Pascual mine, Zimpan, Hidalgo. In the USA, from Arizona, in the Mammoth-St. Anthony mine, at Tiger, Pinal Co., the Lucky Cuss mine, Tombstone, Cochise Co., and the Rawhide mine, Artillery Mountains, Maricopa Co. As exceptional crystal groups from Tsumeb, Namibia. Alarsite    AlAsO4 Approved IMA 1994 (Dana # Added) NAME ORIGIN: Named from its chemical composition of Aluminum and Arsenic. Albite     NaAlSi3O8 Valid Species (Pre-IMA) 1815 NAME ORIGIN: From the Latin, albus, in allusion to the common color. Albrechtschraufite   Ca4Mg(UO2)2(CO3)6F2·17(H2O) Approved IMA 1984 NAME ORIGIN: Named for Albrecht Schrauf (1837-1897), Austrian crystallographer, University of Vienna, Vienna, Austria. Aldermanite   Mg5Al12(PO4)8(OH)22·32(H2O) Approved IMA 1981 NAME ORIGIN: Named for Arthur Richard Alderman (1901-1980), Mineralogist and petrologist, University of Adelaide, SA, Australia. Aldzhanite CaMgB2O4Cl·7(H2O) (?) Not Approved IMA 1972 - Published 1968 NAME ORIGIN: Not given in abstract. Aleksite   PbBi2Te2S2 (?) Approved IMA 1978 NAME ORIGIN: Named after the locality. LOCALITY: In the Alekseev mine, Sutemskii region, Stanovoi Range, Russia. Alexandrite - See Chrysoberyl REMARKS: Green colored chrysoberyl Alflarsenite NaCa2Be3Si4O13(OH)·2H2O Proposed IMA 2008 NAME ORIGIN: Commission on New Minerals, Nomenclature and Classification (CNMNC) Alforsite    Ba5(PO4)3Cl Approved IMA 1981 NAME ORIGIN: To honor Dr. John T. Alfors (1930- ), geologist, California Division of Mines, for his work on the type locality. LOCALITY: From Big Creek and Rush Creek, Fresno Co., and on Trumbull Peak, near Incline, Marisopa Co., California, USA. Alfredstelznerite Ca4(H2O)4 [B4O4(OH)6]4 {H2O}15 Proposed IMA 2007 NAME ORIGIN: Commission on New Minerals, Nomenclature and Classification (CNMNC) Algodonite   Cu6As Valid Species (Pre-IMA) 1857 NAME ORIGIN: Named for the locality. LOCALITY: Chile, Algodones silver mn, Coquimbo Aliettite   [Mg3Si4O10(OH)2](Ca0.5,Na)0.33(Al,Mg,Fe++)2-3(Si,Al)4O10(OH)2·n(H2O) Approved IMA 1969 NAME ORIGIN: Named for Andrea Alietti (1923-), clay mineralogist. Allabogdanite   (Fe,Ni)2P Approved IMA 2002 (Dana # Added) NAME ORIGIN: Named for Alla Bogdanova, Geological Institute, Kola Science Centre of Russian Academy of Sciences. Allactite     Mn7(AsO4)2(OH)8 Valid Species (Pre-IMA) 1884 NAME ORIGIN: From the Greek, to change, a reference to the strong pleochroism. Allanite-(Ce)     (Ce,Ca,Y)2(Al,Fe+++)3(SiO4)3(OH) Valid Species (Pre-IMA) 1810 - Dana Number Modified from 58.2.1a.1 NAME ORIGIN: Named after the Scottish mineralogist, T. Allan (1777-1833). Allanite-(La)     Ca(REE,Ca)Al2(Fe++,Fe+++)(SiO4)(Si2O7)O(OH) Approved IMA 2003 (Dana # Added) NAME ORIGIN: Named after the Scottish mineralogist, T. Allan (1777-1833) and the La content. A Mineral Pages: [1] [2] [3] [4] [5]