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]

Argentite    Ag2S Not Approved IMA NAME ORIGIN: After the Latin, argentum, meaning "silver". From the Greek, akanta, meaning "arrow." Argentite is stable above 179 C. Acanthite is stable below 179 C. Argentojarosite   AgFe+++3(SO4)2(OH)6 Valid Species (Pre-IMA) 1923 NAME ORIGIN: Named for the silver content and relationship to jarosite. Argentopentlandite    Ag(Fe,Ni)8S8 Approved IMA 1977 NAME ORIGIN: For the similarity in composition to pentlandite. Argentopyrite   AgFe2S3 Valid Species (Pre-IMA) 1868 NAME ORIGIN: For its composition and physical similarity to pyrite. Argentotennantite  (Ag,Cu)10(Zn,Fe)2(As,Sb)4S13 Approved IMA 1986 NAME ORIGIN: For the chemical composition and by analogy to tennantite. Argutite    GeO2 Approved IMA 1983 NAME ORIGIN: Named for the locality. LOCALITY: From the Argut deposit, central Pyrenees, Haute-Garonne, France. Argyrodite     Ag8GeS6 Valid Species (Pre-IMA) 1886 NAME ORIGIN: For the Greek for "silver-containing." Arhbarite   Cu2Mg(AsO4)(OH)3 Approved IMA 1982 NAME ORIGIN: Named for the locality. LOCALITY: Arhbar mine, Bou-Azzer, Morocco. Aricite - See Gismondine Aristarainite    Na2MgB12O20·8(H2O) Approved IMA 1974 NAME ORIGIN: Named for Lorenzo Francisco Aristarain (1926- ), Argentine mineralogist specializing in borate deposits, La Plata University, Buenos Aires, Argentina. Arizonite - See Pseudorutile Arkelite - See Tazheranite REMARKS: Tazheranite, name originally used for synthetic material. Armalcolite    (Mg,Fe++)Ti2O5 Approved IMA 1970 NAME ORIGIN: Named after the three astronauts of Apollo 11: Neil A. ARMstrong, Edwin E. "Buzz" ALdrin, and Michael COLlins. Armangite     Mn26As+++18O50(OH)4(CO3) Valid Species (Pre-IMA) 1920 NAME ORIGIN: Named for Arsenic and MANGanese in the composition. Armbrusterite    K5Na6Mn+++Mn++14[Si9O22]4(OH)10·4H2O Approved IMA 2005 (Dana # Added) NAME ORIGIN: Named for Thomas Armbruster (b. 1950; University of Berne) for his outstanding contribution to structural mineralogy and crystallography, especially to the study of Mn-rich minerals. Armenite    BaCa2Al6Si9O30·2(H2O) Valid Species (Pre-IMA) 1939 NAME ORIGIN: The name origin for Armenite is the type locality. LOCALITY: Armen Mine, Kongsberg, Norway. Armstrongite    CaZrSi6O15·3(H2O) Approved IMA 1973 NAME ORIGIN: Named for Neil Alden Armstrong, (1930-), American astronaut, first human being on the moon's surface, Apollo 11 Lunar Mission. Arnhemite  (K,Na)2Mg2(P2O7)·5(H2O) Not Approved IMA NAME ORIGIN: Named after it's locality. LOCALITY: Arnhem Cave, Namibia. Arrojadite     KNa4CaMn++4Fe++10Al(PO4)12(OH,F)2 Renamed IMA 2005, Dana # changed from 41.7.2.1 NAME ORIGIN: To honor Miguel Arrojado Ribeiro Lisboa (1872-1932), Brazilian geologist. Arrojadite {1925) is renamed arrojadite-(KFe) and arrojadite becomes the group name. Arrojadite-(BaFe)     (Ba,K,Pb)Na3(Ca,Sr)(Fe++,Mg,Mn)14Al(PO4)11(PO3OH)(OH,F)2 Approved IMA 1996 (Dana # Added) NAME ORIGIN: Originally for Pietro Sigismund (1874-1962), renamed arrojadite-(BaFe) in 2005 by the IMA. Arrojadite-(BaNa)  BaFe++Na2Ca(Fe++,Mn,Mg)13Al(PO4)11(PO3OH)(OH,F)2 Not Submitted IMA (Dana # Added) NAME ORIGIN: Named after arrojadite and site occupancy of the arrojadite structure. Arrojadite-(KFe)     KNa2CaNa2(Fe++,Mn,Mg)13Al(PO4)11(PO3OH)(OH,F)2 Not Submitted IMA (Dana # Added) NAME ORIGIN: Named after arrojadite and site occupancy of the arrojadite structure. Arrojadite-(KNa)     KNa4Ca(Fe,Mn,Mg)13Al(PO4)11(PO3OH)(OH,F)2 Approved IMA 2005 (Dana # Added) NAME ORIGIN: Named after arrojadite and site occupancy of the arrojadite structure. Arrojadite-(NaFe)   NaNa2CaNa2(Fe++,Mn,Mg)13Al(PO4)11(PO3OH)(OH,F)2 Not Submitted IMA (Dana # Added) NAME ORIGIN: Named after arrojadite and site occupancy of the arrojadite structure. Arrojadite-(PbFe)  PbFe++Na2Ca(Fe++,Mn,Mg)13Al(PO4)11(PO3OH)(OH,F)2 Approved IMA 2005 (Dana # Added) NAME ORIGIN: Named after arrojadite and site occupancy of the arrojadite structure. Arrojadite-(SrFe)    SrFe++Na2Ca(Fe++,Mn,Mg)13Al(PO4)11(PO3OH)(OH,F)2 Approved IMA 2005 (Dana # Added) NAME ORIGIN: Named after arrojadite and site occupancy of the arrojadite structure. Arsenbrackebuschite    Pb2(Fe++,Zn)(AsO4)2·(H2O) Approved IMA 1978 NAME ORIGIN: As the arsenate analog of "brackebuschite." Arsendescloizite    PbZn(AsO4)(OH) Approved IMA 1982 NAME ORIGIN: As the arsenate analog of "descloizite." Arsenic     As Valid Species (Pre-IMA) Prehistoric NAME ORIGIN: From the Greek, Arsenikon, a name originally applied to the mineral orpiment. Arsenical nickel - See Nickeline Arsenical pyrite - See Arsenopyrite Arseniodialyte - See Hausmannite Arseniopleite    (Ca,Na)(Na,Pb)Mn++(Mn++,Mg,Fe++)2(AsO4)3 Valid Species (Pre-IMA) 1888 NAME ORIGIN: Named from the Latin for the element As, and Greek for 'more' because it adds to the number of related minerals already described. Arseniosiderite   Ca2Fe+++3(AsO4)3O2·3(H2O) Valid Species (Pre-IMA) 1842 NAME ORIGIN: For essential "arsenic" in the composition, and "sideros," Greek for "iron." Arsenobismite  Bi2(AsO4)(OH)3 Discredited IMA 1999 NAME ORIGIN: Named in 1916 for it's composition. Arsenoclasite   Mn5(AsO4)2(OH)4 Valid Species (Pre-IMA) 1931 NAME ORIGIN: Named from "arsenic" and the Greek for "breaking," for its excellent cleavage. Arsenocrandallite   (Ca,Sr)Al3[(As,P)O4]2(OH)5·(H2O) Approved IMA 1981 NAME ORIGIN: For "arsenic" in the composition, and relation to "crandallite." Arsenoflorencite-(Ce)    (Ce,La)Al3(AsO4)2(OH)6 Approved IMA 1987 NAME ORIGIN: Named as the arsenic analog of florencite and the dominant rare earth element, cerium. Arsenoflorencite-(La)    (La,Sr)Al3(AsO4,SO4,PO4)2(OH)6 Not Approved IMA 1991 NAME ORIGIN: Named as the arsenic analog of florencite and the dominant rare earth element, Lanthanum. Arsenoflorencite-(Nd)   (Nd,La,Ce,Ba)(Al,Fe+++)3(AsO4,PO4)2(OH)6 Not Approved IMA NAME ORIGIN: Named as the arsenic analog of florencite and the dominant rare earth element, Neodymium. Arsenogorceixite   BaAl3AsO3(OH)(AsO4,PO4)(OH,F)6 Approved IMA 1992 (Dana # Added) NAME ORIGIN: For its "arsenic" content and relation to "gorceixite." Arsenogoyazite   (Sr,Ca,Ba)Al3(AsO4,PO4)2(OH,F)5·(H2O) Approved IMA 1984 NAME ORIGIN: Named for the chemical composition and it's relationship to goyazite. Arsenohauchecornite    Ni18Bi3AsS16 Approved IMA 1980 NAME ORIGIN: Alludes to its chemical relation to the hauchecornite group. Arsenolamprite    As Valid Species (Pre-IMA) 1886 NAME ORIGIN: Named for the composition and the Greek for brilliance, in allusion to its luster. Arsenolite     As2O3 Valid Species (Pre-IMA) 1854 NAME ORIGIN: For ARSENic in the composition. Arsenopalladinite   Pd8(As,Sb)3 Approved IMA 1974 NAME ORIGIN: Named for its composition. Arsenopyrite     FeAsS Valid Species (Pre-IMA) 1847 NAME ORIGIN: Named after the minerals chemical composition. Arsenopyromorphite - See Mimetite Arsenosulvanite    Cu3(As,V)S4 Discredited IMA 2006 - Valid Species (Pre-IMA) 1941 NAME ORIGIN: Named for its chemical relationship to sulvanite. Arsenosulvanite - See Colusite Arsenovanmeersscheite  U(OH)4[(UO2)3(AsO4)2(OH)2]·4H2O Proposed IMA 2006 NAME ORIGIN: Commission on New Minerals, Nomenclature and Classification (CNMNC) Arsenowaylandite BiAl3(AsO4)2(OH)6 Not Approved IMA NAME ORIGIN: Named as the arsenate analog of waylandite. Arsenpolybasite    [Ag9CuS4] [(Ag,Cu)6(As,Sb)2S7] Approved IMA 1963 NAME ORIGIN: For the chemical composition and close relationship to polybasite. Arsentsumebite    Pb2Cu(AsO4)(SO4)(OH) Valid Species (Pre-IMA) 1935 NAME ORIGIN: Named as the "arsenate" analog of "tsumebite." Arsenuranospathite    HAl(UO2)4(AsO4)4·40(H2O) Approved IMA 1978 NAME ORIGIN: As the "arsenate" analog of "uranospathite." Arsenuranylite    Ca(UO2)4(AsO4)2(OH)4·6(H2O) Valid Species (Pre-IMA) 1958 NAME ORIGIN: Named for its relationship to phosphuranylite as the end-member. Arthurite    CuFe+++2(AsO4,PO4,SO4)2(O,OH)2·4(H2O) Approved IMA 1964 NAME ORIGIN: Named for Sir Arthur Edward Ian Montagu Russell (1878-1964) and Arthur William Gerald Kingsbury (1906-1968) for their contributions to British mineralogy. Artinite   Mg2(CO3)(OH)2·3(H2O) Valid Species (Pre-IMA) 1902 NAME ORIGIN: Named after the Italian mineralogist, Ettore Artini (1866-1928), mineralogist at the University of Milan. Artroeite    PbAlF3(OH)2 Approved IMA 1995 NAME ORIGIN: For Dr. Arthur (Art) Roe (1912-1993). Artsmithite  Hg+4Al(PO4)1.74(OH)1.78 Approved IMA 2003 (Dana # Added) NAME ORIGIN: Named for Arthur (Art) E. Smith (1935-), American petroleum geologist from Houston, Texas who collected the original sample. Arupite  (Ni,Fe++)3(PO4)2·8(H2O) Approved IMA 1990 NAME ORIGIN: To honor Hans Henning Arup (1928- ), Director of the Danish Corrosion Center, Copenhagen, Denmark. Arzakite    Hg3S2(Br,Cl)2 Approved IMA 1984 NAME ORIGIN: Named after it's locality. LOCALITY: Arzak mercury deposits, Tuva, Siberia, Russia. Arzrunite Cu4Pb2SO4(OH)4Cl6·2(H2O) Valid Species (Pre-IMA) 1899 NAME ORIGIN: Named after Andreas Arzruni (1847-1898), German mineralogist, University of Aachen. Asbecasite    Ca3(Ti,Sn)As+++6Si2Be2O20 Approved IMA 1966 NAME ORIGIN: The name origin for Asbecasite is the main elements: As,Be,Ca,Si. Asbestos - See Parachrysotile Asbestos - See Orthochrysotile Asbestos - See Chrysotile Asbestos - See Clinochrysotile Asbolane   (Co,Ni)1-y(Mn++++O2)2-x(OH)2-2y+2x·n(H2O) Valid Species (Pre-IMA) 1847 NAME ORIGIN: Named from the Greek "to soil like soot". Aschamalmite    Pb6Bi2S9 Approved IMA 1983 NAME ORIGIN: Named for the locality. LOCALITY: Ascham Alm, Untersulzbachtal, Austria. Ascharite - See Szaibelyite Ashanite   (Nb,Ta,U,Fe,Mn)4O8 Discredited IMA 1998 NAME ORIGIN: From Altai and SHAN, Chinese for "mountains," for the occurrence in the Altai Mountains, China. Ashburtonite    HPb4Cu++4Si4O12(HCO3)4(OH)4Cl Approved IMA 1989 NAME ORIGIN: Named for the locality. LOCALITY: Anticline prospect, on Mineral Claim 84, which is on the Ashburton Downs pastoral lease, 11.2 km west-southwest of Ashburton Downs homestead. Ashcroftine-(Ce)   K5Na5(Ce,Ca)12Si28O70(OH)2(CO3)8·8(H2O) Not Approved IMA NAME ORIGIN: Named for Frederick Noel Ashcroft (1878-1949), benefactor to the British Museum (Natural History), London, England. Ashcroftine-(Y)    K5Na5(Y,Ca)12Si28O70(OH)2(CO3)8·8(H2O) Valid Species (Pre-IMA) 1933 NAME ORIGIN: Named for Frederick Noel Ashcroft (1878-1949), benefactor to the British Museum (Natural History), London, England. Ashoverite  Zn(OH)2 Approved IMA 1988 NAME ORIGIN: Named for the locality. LOCALITY: Milltown, near Ashover, Derbyshire, England. Ashtonite - See Mordenite Asisite    Pb12(SiO4)O8Cl4 Approved IMA 1988 NAME ORIGIN: The root name "Asis" means "drinking place" in the local Nama language and is also the name of the farm on which the Kombat mine is located. LOCALITY: Kombat mine, located 37 km east of Otavi and 49 km south of Tsumeb in the north-central part of Namibia. Aspidolite    NaMg3AlSi3O10(OH)2 Approved IMA 1980 NAME ORIGIN: The name is from the Greek "aspisidos", like a shield, alluding to the appearance of its crystals. Asselbornite    (Pb,Ba)(UO2)6(BiO)4(AsO4)2(OH)12·3(H2O) Approved IMA 1983 NAME ORIGIN: Named for Eric Asselborn (1954-), mineral collector and surgeon, Montrevel-en-Bresse, Dijon, France, in whose collection the mineral was first found.. Astrocyanite-(Ce)    Cu2(Ce,Nd,La)2(UO2)(CO3)5(OH)2·1.5(H2O) Approved IMA 1990 NAME ORIGIN: Named from the Greek for "star" and "blue" alluding to the star-like habit and blue color and the dominant Ce. Astrophyllite     K2Na(Fe++,Mn)7Ti2Si8O26(OH)4 Valid Species (Pre-IMA) 1854 NAME ORIGIN: From the Greek aster - "star" and fyllon - "leaf." Atacamite     Cu2Cl(OH)3 Valid Species (Pre-IMA) 1801 NAME ORIGIN: Named after its locality. LOCALITY: Atacam desert province in northern Chile. Atelestite     Bi8(AsO4)3(OH)5O5 Valid Species (Pre-IMA) 1832 NAME ORIGIN: Derivation not explicitly stated. Probably from the Greek for "incomplete," as the composition was undetermined when the mineral was first described. Atencioite  Ca2Fe++[ ]Mg2Fe++2Be4(PO4)6(OH)4·6H2O Approved IMA 2004 (Dana # Added) NAME ORIGIN: Named for Dr. Daniel Atencio, professor of mineralogy at the Geoscience Institute of the University of São Paulo, Brazil. Athabascaite   Cu5Se4 Approved IMA 1969 NAME ORIGIN: Named for the locality. LOCALITY: Martin Lake mine, Uranium City, Lake Athabasca, SK, Canada. Atheneite   (Pd,Hg)3As Approved IMA 1973 NAME ORIGIN: After the Greek goddess "Pallas Athene," in allusion to its palladium content. Atlasovite    Cu6Fe+++Bi+++O4(SO4)5·KCl Approved IMA 1987 NAME ORIGIN: Named for Vladimir Vasil’evich Atlasov (1661/1664-1711), Russian traveller who first explored the Kamchatka Peninsula. Atokite    (Pd,Pt)3Sn Approved IMA 1975 NAME ORIGIN: For the Atok mine, South Africa. Atopite - See Romeite Attacolite - See Attakolite Attakolite    (Ca,Sr)Mn++(Al,Fe+++)4[(Si,P)O4]H(PO4)3(OH)4 Valid Species (Pre-IMA) 1868 NAME ORIGIN: Named from the Greek for "salmon" for the pale pink color. Attapulgite - See Palygorskite Attikaite  Ca3Cu2Al2(AsO4)4(OH)4·2H2O Approved IMA 2006 (Dana # Added) NAME ORIGIN: Named for the locality. LOCALITY: Christiana mine No. 132, Kamareza, Lavrion District, Attií Prefecture, Greece. Aubertite    CuAl(SO4)2Cl·14(H2O) Approved IMA 1978 NAME ORIGIN: Named for J. Aubert (1929- ), French geophysicist who collected the first specimens. A Mineral Pages:[1] [2] [3] [4] [5]