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]

Allanite-(Y)    (Y,Ce,Ca)2(Al,Fe+++)3(SiO4)3(OH) Valid Species (Pre-IMA) 1949 - Dana Number Modified from 58.2.1a.3 NAME ORIGIN: Named after the Scottish mineralogist, T. Allan (1777-1833). Allanpringite   Fe3(PO4)2(OH)3·5H2O Approved IMA 2004 (Dana # Added) NAME ORIGIN: Named for Allan Pring, eminent Australian mineralogist. Allargentum    Ag1-xSbx(x=0.009-0.16) Valid Species (Pre-IMA) 1949 NAME ORIGIN: Named from the Greek for 'another' and the Latin 'argentum'. Alleghanyite    Mn5(SiO4)2(OH)2 Valid Species (Pre-IMA) 1932 NAME ORIGIN: Named after its locality. LOCALITY: Bald Knob, Alleghany Co., North Carolina, USA. Allemontite - See Stibarsen Allendeite  Sc4Zr3O12 Approved IMA 2007 (Dana # Added) NAME ORIGIN: Named for the locality. LOCALITY: Allende meteorite, Pueblito de Allende, Chihuahua, Mexico. Allochalcoselite  Cu+Cu++5PbO2(SeO3)2Cl5 Approved IMA 2004 (Dana # Added) NAME ORIGIN: The name is compositional and is derived from the Greek, for "different", "copper" and "selenium", to reflect the different valences and crystallographic behavior of copper in this selenite mineral. Alloclasite   (Co,Fe)AsS Valid Species (Pre-IMA) 1866 NAME ORIGIN: From the Greek for "other", and "to break," because its cleavage was believed to be different from marcasite, which it resembles. Allophane   Al2O3·(SiO2)1.3-2·((H2O))2.5-3 Valid Species (Pre-IMA) 1816 NAME ORIGIN: From the Greek allos - "other" and phanos - "to appear" in allusion to its change when blowpiped. Alloriite   Na5K1.5Ca(Si6Al6O24)(SO4)(OH)0.5·H2O Approved IMA 2006 (Dana # Added) NAME ORIGIN: Named for Roberto Allori (1933*), Italian amateur mineralogist and collector, who found the mineral. Alluaivite   Na19(Ca,Mn++)6(Ti,Nb)3(Si3O9)2(Si10O28)2Cl·2(H2O) Approved IMA 1990 NAME ORIGIN: For its occurrence on Mt. Alluaiv, Kola Peninsula, Russia. Alluaudite    NaCaFe++(Mn,Fe++,Fe+++,Mg)2(PO4)3 Valid Species (Pre-IMA) 1848 NAME ORIGIN: Named for Francois Alluaud, mining engineer of Limoges, France, who discovered the mineral. Almagrerite - See Zincosite Almandine     Fe++3Al2(SiO4)3 Valid Species (Pre-IMA) Prehistoric NAME ORIGIN: Named after its locality. LOCALITY: Alabanda in Asia Minor. Almandite - See Almandine Almarudite   K([ ],Na)2(Mn,Fe,Mg)2(Be,Al)3[Si12O30] Approved IMA 2004 (Dana # Added) NAME ORIGIN: After the authors’ hosting and supporting institution, "Universität Wien", and is derived from the university’s proper name "ALma MAter RUDolphina". Almbosite Fe++5Fe+++4V+++++4Si3O27 Discredited IMA 1987 - Published 1980 NAME ORIGIN: Named for the locality. LOCALITY: Almhiitte Bos, Trentino-Alto Adige, Italy. Almeraite - See Carnallite REMARKS: Mixture of carnallite and halite. Alpersite   (Mg,Cu)SO4·7H2O Approved IMA 2003 (Dana # Added) NAME ORIGIN: Named after Charles N. Alpers, geochemist with the United States Geological Survey, who has made significant contributions to our understanding of the mineralogical controls of mine-water geochemistry. Alsakharovite-Zn   NaSrKZn(Ti,Nb)4(Si4O12)2(O,OH)4·7(H2O) Approved IMA 2003 (Dana # Added) NAME ORIGIN: Named for Aleksey S. Sakharov (1910-1996), Russian geologist who studied the Lovozero alkaline massif. Alstonite    BaCa(CO3)2 Valid Species (Pre-IMA) 1841 NAME ORIGIN: Named after the locality. LOCALITY: Brownley Hill lead mine, Alston, Cumberland and Fallowfield lead mine hear Hexham, Northcumberland, England. Altaite    PbTe Valid Species (Pre-IMA) 1845 NAME ORIGIN: Named after its locality. LOCALITY: Ziryanovsk in the Altai Mountains, Siberia. Althausite   Mg2(PO4)(OH,F,O) Approved IMA 1975 NAME ORIGIN: To honor Professor Egon Althaus (1933- ), Karlsruhe University, Karlsruhe, Germany. Althupite    ThAl(UO2)7(PO4)4(OH)5·15(H2O) Approved IMA 1986 NAME ORIGIN: For the major cations in the composition, Aluminum, Thorium, Uranium, Phosphorus. Altisite     Na3K6Ti2Al2Si8O26Cl3 Approved IMA 1994 NAME ORIGIN: Name for the elements Al, Ti, and Si in the composition. Altmarkite - See Leadamalgam Aluminilite - See Alunite Aluminite    Al2(SO4)(OH)4·7(H2O) Valid Species (Pre-IMA) 1807 NAME ORIGIN: Named after its chemical composition. Aluminium - See Aluminum Aluminobarroisite  [ ]CaNaMg3Al2(Si7Al)O22(OH)2 Approved IMA 1997 (Dana # Added) NAME ORIGIN: Named as per current IMA amphibole nomenclature (Burke and Leake 2004; Can. Mineral., 42, 1881-1883). Aluminoceladonite     KAl(Mg,Fe++)[ ]Si4O10(OH)2 Approved IMA 1997 (Dana # Added) NAME ORIGIN: Named for the French celadon, (sea green), in allusion to its common color. Aluminocerite-(Ce)   (Ce,REE,Ca)9(Al,Fe+++)(SiO4)3[SiO3(OH)]4(OH)3 Approved IMA 2007 (Dana # Added) NAME ORIGIN: Named as the Al-dominant analog of cerite-(Ce). Aluminocopiapite   Al2/3Fe+++4(SO4)6O(OH)2·20(H2O) Valid Species (Pre-IMA) 1947 NAME ORIGIN: Named for its content of aluminum and relation to the copiapite group. Aluminoferrobarroisite  [ ]CaNa(Fe2+)3Al2(Si7Al)O22(OH)2 Approved IMA 1997 (Dana # Added) NAME ORIGIN: Named as per current IMA amphibole nomenclature (Burke and Leake 2004; Can. Mineral., 42, 1881-1883). Aluminoferrohornblende - See Ferrohornblende Aluminoferrotschermakite   [ ]Ca2(Fe2+)3Al2(Si6Al2)O22(OH)2 Approved IMA 1997 (Dana # Added) NAME ORIGIN: Named for its composition and for Gustav Tschermak von Sessenegg (1836-1927), Austrian mineralogist. Aluminokatophorite - See Katophorite Aluminomagnesiohornblende - See Magnesiohornblende Aluminomagnesiohulsite  Mg2(Al,Mg,Sn)(BO3)O2 Approved IMA 2004 (Dana # Added) NAME ORIGIN: Named as the Al and Mg dominant member of the hulsite group. Alumino-magnesiohulsite - See Aluminomagnesiohulsite REMARKS: Renamed Aluminomagnesiohulsite by Mineralogical Record, v39 (2008), p131 Alumino-magnesiotaramite   Na(CaNa)(Mg3Al2)(Si6Al2)O22(OH)2 Approved IMA 2006 (Dana # Added) NAME ORIGIN: Named as per current IMA amphibole nomenclature (Burke and Leake 2004; Can. Mineral., 42, 1881-1883). Aluminotaramite    Na(CaNa)(Fe+++3Al2)(Si6Al2)O22(OH)2 Approved IMA 2006 (Dana # Added) NAME ORIGIN: Named as per current IMA amphibole nomenclature (Burke and Leake 2004; Can. Mineral., 42, 1881-1883). Aluminotschermakite - See Tschermakite Aluminowinchite - See Winchite Aluminum    Al Approved IMA 1978 NAME ORIGIN: From the Latin, alumen = "alum." Aluminum Sulfate - See Alunogen Alum-(K)    KAl(SO4)2·12(H2O) Valid Species (Pre-IMA) 1875 NAME ORIGIN: Named for the element K and the Latin, alumen. Alum-(Na)  NaAl(SO4)2·12(H2O) Valid Species (Pre-IMA) NAME ORIGIN: Named for the composition. Alumoakermanite (Ca,Na)2(Al,Mg,Fe++)(Si2O7) Proposed IMA 2008 (Dana # Added) NAME ORIGIN: Named as the Al analog of akermanite. Alumohydrocalcite   CaAl2(CO3)2(OH)4·3(H2O) Valid Species (Pre-IMA) 1926 NAME ORIGIN: Named after its chemical composition. Alumoklyuchevskite    K3Cu3AlO2(SO4)4 Approved IMA 1995 NAME ORIGIN: Named as the aluminum dominant analog of klyuchevskite. Alumopharmacosiderite     KAl4(AsO4)3(OH)4·6·5(H2O) Approved IMA 1981 NAME ORIGIN: As the ALUMinum analog of "pharmacosiderite." Alumotantite   AlTaO4 Approved IMA 1981 NAME ORIGIN: For ALUMinum and TANTalum in the composition. Alumotungstite   (W,Al)(O,OH)3 (?) Approved IMA 1971 NAME ORIGIN: Named for the composition. Alunite      KAl3(SO4)2(OH)6 Valid Species (Pre-IMA) 1824 NAME ORIGIN: From the Latin alunit, meaning "alum." Alunogen     Al2(SO4)3·17(H2O) Valid Species (Pre-IMA) 1832 NAME ORIGIN: From the Latin alumen ="alum" and the Greek genos ="origin." Alushtite - See Tosudite Alvanite  (Zn,Ni)Al4(VO3)2(OH)12·2(H2O) Approved IMA 1959 NAME ORIGIN: Named for the ALuminum and VANadium in the composition. Amakinite   (Fe++,Mg)(OH)2 Approved IMA 1962 NAME ORIGIN: Named for the Amakin Expedition, which prospected the Yakutain diamond deposits. Amalgam  Ag2Hg3 Not Approved IMA NAME ORIGIN: Named for the Medieval Latin "amalgama" for a mercury-metal alloy, generally when the other metal is silver. Amarantite     Fe+++(SO4)(OH)·3(H2O) Valid Species (Pre-IMA) 1888 NAME ORIGIN: Named from the Greek for amaranth, an imaginary purplish red undying flower, for its color. Amarillite     NaFe+++(SO4)2·6(H2O) Valid Species (Pre-IMA) 1933 NAME ORIGIN: Named for the locality. LOCALITY: Tierra Amarilla, southeast of Copiapo, Atacama, Chile Amazonstone - See Microcline REMARKS: Green colored microclinte Amber  [C,H,O] Not Approved IMA NAME ORIGIN: The name is for the yellow-orange-brown color. Amblygonite     (Li,Na)Al(PO4)(F,OH) Valid Species (Pre-IMA) 1817 NAME ORIGIN: From the Greek amblys - "blunt" and goni - "angle." Ameghinite    NaB3O3(OH)4 Approved IMA 1967 NAME ORIGIN: Named for Carlos Ameghino (1865-1936) and Florentino Ameghino (1854-1911), both brothers and Argentine geologists. Amesite    Mg2Al(SiAl)O5(OH)4 Valid Species (Pre-IMA) 1876 NAME ORIGIN: Honors James Ames, a mine owner. Amethyst - See Quartz REMARKS: Purple colored quartz Amianthus - See Parachrysotile Amicite     K2Na2Al4Si4O16·5(H2O) Approved IMA 1979 NAME ORIGIN: To honor Giovan Battista, Amici (1786-1863), physicist, optician, and inventor of microscope optical elements. Aminoffite    Ca3Be2Si3O10(OH)2 Valid Species (Pre-IMA) 1937 NAME ORIGIN: Named for Gregori Aminoff (1993-1947), Swedish Mineralogist and crystallographer. Ammonia alum - See Tschermigite Ammonian arcanite - See Arcanite Ammonioalunite   (NH4)Al3(SO4)2(OH)6 Approved IMA 1987 NAME ORIGIN: Named for its composition (Ammonia, Al,). Ammonioborite   (NH4)2B10O16·5(H2O) Valid Species (Pre-IMA) 1931 NAME ORIGIN: Named for its composition, ammonium borate. Ammoniojarosite     (NH4)Fe+++3(SO4)2(OH)6 Valid Species (Pre-IMA) 1927 NAME ORIGIN: Named as the ammonium analog of jarosite. Ammonioleucite     (NH4,K)AlSi2O6 Approved IMA 1984 NAME ORIGIN: For "ammonia" in its chemical composition and its relation to "leucite." Ammonium hexachlorostannate - See Panichiite Amosite - See Grunerite Amphigene - See Leucite Amstallite   CaAl(Si,Al)4O8(OH)4·((H2O),Cl) Approved IMA 1987 NAME ORIGIN: For the locality. LOCALITY: In the Amstall graphite quarry, Amstall, Austria. An0 - See Albite REMARKS: Plagioclase Solid Solution Series (100% to 95% Albite + 0% to 5% Anorthite) An100 - See Anorthite REMARKS: Plagioclase Solid Solution Series (0% to 5% Albite + 100% to 95% Anorthite) An20 - See Oligoclase REMARKS: Plagioclase Solid Solution Series (75% to 85% Albite + 25% to 15% Anorthite) An40 - See Andesine REMARKS: Plagioclase Solid Solution Series (55% to 65% Albite + 45% to 35% Anorthite) An60 - See Labradorite REMARKS: Plagioclase Solid Solution Series (35% to 45% Albite + 65% to 55% Anorthite) An80 - See Bytownite REMARKS: Plagioclase Solid Solution Series (15% to 25% Albite + 85% to 75% Anorthite) Analcidite - See Analcime Analcime     NaAlSi2O6·(H2O) Valid Species (Pre-IMA) 1801 NAME ORIGIN: From the Greek word meaning weak, referring to a weak electrical charge developed on rubbing. Analcite - See Analcime Analzim - See Analcime Anandite     (Ba,K)(Fe++,Mg)3(Si,Al,Fe)4O10(S,OH)2 Approved IMA 1967 NAME ORIGIN: Named for Ananda Kentish Coomaraswamy (1877-1947), first director of the Mineral Survey of Ceylon (Sri Lanka). Anapaite     Ca2Fe++(PO4)2·4(H2O) Valid Species (Pre-IMA) 1910 NAME ORIGIN: For its discovery near Anapa, Russia. Anatase     TiO2 Valid Species (Pre-IMA) 1801 NAME ORIGIN: From the Greek, anatasis - "elongation." Ancylite-(Ce)      SrCe(CO3)2(OH)·(H2O) Valid Species (Pre-IMA) 1899 NAME ORIGIN: Named for the composition and from the Greek "curved," in allusion to the rounded and distorted character of the crystals. A Mineral Pages:[1] [2] [3] [4] [5]