U Listing of Minerals

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U Mineral Index (59 Count)

This alphabetical listing of U 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

Uedaite-(Ce)   Mn++CeAl2Fe++(Si2O7)(SiO4)O(OH) Approved IMA 2006 (Dana # Added) NAME ORIGIN: Named for Tateo Ueda (1912-2000), who was the first to solve the crystal structure of allanite. Uhligite - See Zirkelite REMARKS: Perovskite or zirkelite (?) Uhligite - See Perovskite REMARKS: Perovskite or zirkelite (?) Uhligite   Ca3(Ti,Al,Zr)9O20 Discredited IMA 2006 NAME ORIGIN: Named for Alfred Louis Johannes Uhlig (1883-1919), German geologist, leader of the African expedition in which the material was first collected. Uklonskovite    NaMg(SO4)F·2(H2O) Approved IMA 1964 NAME ORIGIN: Named for Aleksandr Sergeevich Uklonskii (1882-1972), mineralogist, Tashkent University, Tashkent, Uzbekistan, who studied central Asian mineral deposits. Ulexite    NaCaB5O6(OH)6·5(H2O) Valid Species (Pre-IMA) 1850 NAME ORIGIN: Named after the German chemist, George Ludwig Ulex (1811-1883). Ullmannite     NiSbS Valid Species (Pre-IMA) 1843 NAME ORIGIN: Named after the German chemist and mineralogist, J. Ch. Ullmann (1771-1821). Ulrichite     CaCu(UO2)(PO4)2·4(H2O) Approved IMA 1988 NAME ORIGIN: Named for G.H.F. Ulrich. Ultamarine pigment - See Lazurite Ulvite - See Ulvospinel Ulvospinel    TiFe++2O4 Valid Species (Pre-IMA) 1943 NAME ORIGIN: Named after the locality and the spinel group of minerals. LOCALITY: Sodra Ulvön island, Angermanland, Sweden Umangite    Cu3Se2 Valid Species (Pre-IMA) 1891 NAME ORIGIN: Named after the locality. LOCALITY: Sierra de Umango, La Rioja province in Argentina. Umbite     K2ZrSi3O9·(H2O) Approved IMA 1983 NAME ORIGIN: Named for Lake Umbozero, which separates the Khibiny massif from the Lovozero massif, Kola Peninsula, Russia. Umbozerite    Na3Sr4ThSi8(O,OH)24 Approved IMA 1974 NAME ORIGIN: Named for the locality. LOCALITY: Umbozero (Lake Umba), Kola Peninsula, Russia. Umohoite     [(UO2)MoO4]·H2O Valid Species (Pre-IMA) 1953 NAME ORIGIN: Named for the composition of U, Mo, H. Ungarettiite    NaNa2(Mn++2Mn+++3)Si8O22O2 Approved IMA 1995 NAME ORIGIN: Named after Prof. Luciano Ungaretti (1942-), Universita de Pavia, Pavia, Italy. Ungavaite Pd4Sb3 Approved IMA 2004 (Dana # Added) NAME ORIGIN: Named for the locality. LOCALITY: Mesamax Northwest deposit, Ungava region, Québec, Canada Ungemachite      K3Na8Fe+++(SO4)6(NO3)2·6(H2O) Valid Species (Pre-IMA) 1936 NAME ORIGIN: Named for Henri-Leon Ungemach (1879-1936), French mineralogist and crystallographer. Secretary of the French Society of Mineralogy from 1919 to 1934. Ungursaite NaCa5(Ta,Nb)24O65(OH) Not Approved IMA 1988 - Published 1985 NAME ORIGIN: Named for the locality. LOCALITY: Ungursai, East Kazakhstan. Upalite     Al(UO2)3(PO4)2O(OH)·7(H2O) Approved IMA 1979 NAME ORIGIN: Named for the Uranium, Phosphorus, and ALuminum in the composition. Uralborite    CaB2O2(OH)4 Approved IMA 1961 NAME ORIGIN: Named for the original locality in the URAL Mountains, Russia, and BORate in its composition. LOCALITY: Novofrolovskoye copper deposit, near Krasnoturinsk, Turinsk district, Northern Ural Mountains, Russia. Uralolite    Ca2Be4(PO4)3(OH)3·5(H2O) Approved IMA 1964 NAME ORIGIN: Named for the locality. LOCALITY: Boyevka, central Ural Mountains, Russia. Uramarsite    (NH4,H3O)2(UO2)2(AsO4,PO4)2·6H2O Approved IMA 2005 (Dana # Added) NAME ORIGIN: Named for its composition of uranium, ammonium, and arsenic. Uramphite     (NH4)(UO2)(PO4)·3(H2O) Valid Species (Pre-IMA) 1957 NAME ORIGIN: Named for the composition of (UR)anium and (AM)monium and (PH)osphate in the composition. Urancalcarite    Ca(UO2)3(CO3)(OH)6·3(H2O) Approved IMA 1983 NAME ORIGIN: Named for the composition. Uraninite      UO2 Valid Species (Pre-IMA) 1772 NAME ORIGIN: From its elemental composition containing uranium. Uranmicrolite    (U,Ca)2(Ta,Nb)2O6(OH) Valid Species (Pre-IMA) 1957 NAME ORIGIN: Named for uranium and as a member of the microlite group. Uranocircite    Ba(UO2)2(PO4)2·12(H2O) Valid Species (Pre-IMA) 1877 NAME ORIGIN: Named for the composition and from the Greek for "falcon" because it was discovered in Falkenstein, Germany. Uranophane     Ca(UO2)2SiO3(OH)2·5(H2O) Valid Species (Pre-IMA) 1853 NAME ORIGIN: From uran and phanos - "to appear." Uranophane-beta     Ca[(UO2)SiO3(OH)]2·(H2O) Valid Species (Pre-IMA) 1935 NAME ORIGIN: Named as the polymorph of uranophane. Uranopilite     [(UO2)6(SO4)O2(OH)6(H2O)6]·8(H2O) Valid Species (Pre-IMA) 1882 NAME ORIGIN: Named for uranium and the Greek for "felt", alluding to the composition and habit. Uranopolycrase     (U,Y)(Ti,Nb,Ta)2O6 Approved IMA 1993 NAME ORIGIN: Named for its content or URANium and relation to polycrase. Uranosilite   (U++++++O2)Si7O15 Approved IMA 1983 NAME ORIGIN: Named in allusion to the composition. Uranospathite     Al1-x[ ]x[(UO2)(PO4)]2(H2O)20+3xF1-3x Valid Species (Pre-IMA) 1915 NAME ORIGIN: Named for the composition and the Greek for "broad blade" in allusion to the crystal habit. Uranosphaerite     Bi(UO2)O2(OH) Valid Species (Pre-IMA) 1873 NAME ORIGIN: Named for the compostition uranium and the Greek for sphere, in allusion to its globular forms. Uranospinite    Ca(UO2)2(AsO4)2·10(H2O) Valid Species (Pre-IMA) 1873 NAME ORIGIN: Named for uranium and the Greek for "siskin," in allusion to its composition and color. Uranotile - See Uranophane Uranotile-beta - See Uranophane-beta Uranotungstite   (Fe++,Ba,Pb)(UO2)2WO4(OH)4·12(H2O) Approved IMA 1985 NAME ORIGIN: Named for the composition. Uranpyrochlore    (U,Ca,Ce)2(Nb,Ta)2O6(OH,F) Approved IMA 1977 NAME ORIGIN: Named for its URANium content and membership in the pyrochlore group. Urao - See Trona Urea    CO(NH2)2 Approved IMA 1973 NAME ORIGIN: From the Greek for urine, in which urea was first found. Ureyite - See Kosmochlor Uricite    C5H4N4O3 Valid Species (Pre-IMA) 1807 NAME ORIGIN: For its composition, anhydrous uric acid. Ursilite  (Mg,Ca)4[(UO2)4(OH)5/(Si2O5)5.5]·13(H2O) Not Approved IMA - Published 1957 NAME ORIGIN: Named for the composition (U, Si). Urusite - See Sideronatrite Urusovite    Cu[AlAsO5] Approved IMA 1998 (Dana # Added) NAME ORIGIN: The name honors Vadim Sergeevich Urusov of Moscow State University, Russia. Urvantsevite    Pd(Bi,Pb)2 Approved IMA 1976 NAME ORIGIN: Named for Nikolai N. Urvantsev (1893-1985), Russian geologist who discovered the Norilsk deposits. Ushkovite    MgFe+++2(PO4)2(OH)2·8(H2O) Approved IMA 1983 NAME ORIGIN: Named for Sergei L’vovich Ushkov (1880-1951), Russian naturalist, student of the Ilmen National Forest, Russia. Usonite - See Uzonite Usovite    Ba2CaMgAl2F14 Approved IMA 1967 NAME ORIGIN: Named for Mikhail Antonovich Usov (1883-1939), Russian geologist. Ussingite    Na2AlSi3O8(OH) Valid Species (Pre-IMA) 1915 NAME ORIGIN: Named for Niels Viggo Ussing (1864-1911), Copenhagen, Denmark. Ustarasite  Pb(Bi,Sb)6S10 Valid Species (Pre-IMA) 1955 NAME ORIGIN: Named for the locality. LOCALITY: Ustarasaisk deposit, western Tian-Shan, Kazakhstan. Utahite   Cu5Zn3(Te++++++O4)4(OH)8·7(H2O) Approved IMA 1997 (Dana # Added) NAME ORIGIN: Named after its locality. LOCALITY: The Centennial Eureka mine, 1 mile southeast of Eureka, Tintic District, Juab County, Utah, USA. Utahite - See Jarosite Utahlite - See Variscite Uvanite    U++++++2V+++++6O21·15(H2O) Valid Species (Pre-IMA) 1914 NAME ORIGIN: Named for the composition (U, Vanadium).. Uvarovite     Ca3Cr2(SiO4)3 Valid Species (Pre-IMA) 1832 NAME ORIGIN: Named after Count S. S. Uvarov (1765-1855), Russian statesman and ardent amateur mineral collector. Uvite - See Uvite REMARKS: (61.3.1.3) Uvite    (Ca,Na)(Mg,Fe++)3Al5Mg(BO3)3Si6O18(OH,F)4 Valid Species (Pre-IMA) 1929 (Dana # Changed) NAME ORIGIN: Named after its locality. LOCALITY: Province Uva, Sri Lanka. Uytenbogaardtite    Ag3AuS2 Approved IMA 1978 NAME ORIGIN: Named for Willem Uytenbogaardt (1918- ), Professor of Geology, Technical University, Delft, The Netherlands, prominent ore microscopist. Uzonite    As4S5 Approved IMA 1985 NAME ORIGIN: Named for the locality. LOCALITY: Uzon caldera, Kamchatka, Russia.