| aluminian | Of a mineral: having a small proportion of a typical constituent element replaced by aluminium. | 1930 | Go To Quotation |
| autoradiographic | Relating to or involving autoradiography; produced by autoradiography. | 1942 | Go To Quotation |
| bariopyrochlore | A mineral of the pyrochlore group consisting of a basic niobate of barium (usually… | 1977 | Go To Quotation |
| ellestadite | A halogen-containing mineral of the apatite group in which phosphorus is largely replaced by sulphur and silicon. | 1937 | Go To Quotation |
| englishite | A vitreous, colourless or white mineral consisting of a hydrated phosphate of… | 1930 | Go To Quotation |
| ferrian | Of a mineral: having a (small) proportion of a constituent element replaced by ferric iron. | 1930 | Go To Quotation |
| ferroan | Of a mineral: having a (small) proportion of a constituent element replaced by ferrous iron. | 1930 | Go To Quotation |
| fluorian | Of a mineral: having a (small) proportion of a constituent element replaced by fluorine. | 1930 | Go To Quotation |
| greigite | A strongly magnetic iron sulphide mineral that occurs as microscopic pink, blue, or… | 1964 | Go To Quotation |
| hühnerkobelite | An olive-green phosphate of sodium, calcium, bivalent iron, and bivalent manganese, (Na… | 1950 | Go To Quotation |
| huntite | A white carbonate of magnesium and calcium, CaMg 3 (CO 3) 4. | 1953 | Go To Quotation |
| hurlbutite | A colourless or greenish-white phosphate of calcium and beryllium, Be 2 Ca(PO 4) 2. | 1952 | Go To Quotation |
| -ian | Min. Used to form, from the (English or Latin) names of the elements, adjectives having… | 1930 | Go To Quotation |
| illite | Any of a group of clay minerals that belong to the mica group and are characterized by… | 1937 | Go To Quotation |
| johannsenite | A brown, greyish, or greenish silicate of calcium and manganese, CaMnSi 2 O 6, which… | 1932 | Go To Quotation |
| karelianite | An oxide of vanadium, V 2 O 3. | 1963 | Go To Quotation |
| kernite | A hydrated form of sodium borate, Na 2 B 4 O 7.4H 2 O, that occurs as large… | 1927 | Go To Quotation |
| krausite | A pale yellow hydrated sulphate of potassium and iron, KFe(SO 4) 2 · H 2 O. | 1931 | Go To Quotation |
| landesite | A brown hydrated phosphate of manganese and ferric iron, occurring as an alteration… | 1930 | Go To Quotation |
| laubmannite | A basic phosphate of ferrous and ferric iron, Fe II 3 Fe III 6 (PO 4) 4 (OH) 12, of yellow- to grey-green colour. | 1949 | Go To Quotation |
| lausenite | A hydrated ferrous sulphate, Fe 2 (SO 4) 3.6H 2 O, first found as aggregates of… | 1928 | Go To Quotation |
| lehiite | A basic hydrated phosphate of calcium, potassium, sodium, and aluminium, of a white to grey colour. | 1930 | Go To Quotation |
| leightonite | A hydrated sulphate of potassium, calcium, and copper found as transparent, pale blue… | 1938 | Go To Quotation |
| lewistonite | A basic phosphate of calcium, potassium, and sodium, (Ca,K,Na) 5 (PO 4) 3 (OH)… | 1930 | Go To Quotation |
| lindgrenite | A basic copper molybdate, Cu 3 (MoO 4) 2 (OH) 2, found as transparent, green, monoclinic, platy or tabular crystals. | 1935 | Go To Quotation |
| lithian | Of a mineral: having a (small) proportion of a constituent element replaced by lithium. | 1930 | Go To Quotation |
| loseyite | A basic carbonate of zinc and manganese, (Zn,Mn) 7 (CO 3) 2 (OH) 10, found… | 1929 | Go To Quotation |
| mackayite | A green, tetragonal, hydrated tellurite of ferric iron, FeTe 2 O 5 (OH), occurring as pyramidal to short prismatic crystals. | 1944 | Go To Quotation |
| manasseite | A hydrated carbonate and hydroxide of magnesium and aluminium, Mg 6 Al 2 CO 3 (OH) 16 ·4H… | 1941 | Go To Quotation |
| manganoan | Of a mineral: having a (small) proportion of a constituent element replaced by divalent manganese. | 1930 | Go To Quotation |
| manganpyrosmalite | A chlorosilicate mineral analogous to pyrosmalite, but with manganese predominating over iron. | 1953 | Go To Quotation |
| mawsonite | A tetragonal sulphide of copper, tin, and iron, Cu 6 Fe 2 3+ Sn 4+ S 8, which is… | 1965 | Go To Quotation |
| merohedry | = merohedrism n. | 1959 | Go To Quotation |
| merosymmetric | = merohedral adj. | 1938 | Go To Quotation |
| metamictization | The process of becoming, or state of being, metamict. | 1952 | Go To Quotation |
| metamictness | Metamict character. | 1952 | Go To Quotation |
| metavariscite | A monoclinic form of hydrated aluminium phosphate, AlPO 4 ·2H 2 O, which is dimorphous… | 1925 | Go To Quotation |
| microfracture | A very small or fine fracture in a material, bone, etc. | 1939 | Go To Quotation |
| milarite | A hexagonal silicate, K 2 Ca 4 Al 2 Be 4 Si 24 O 60 ·H 2 O, that occurs esp. in… | 1931 | Go To Quotation |
| millisite | A light grey or white hydrated basic phosphate of sodium, potassium, calcium… | 1930 | Go To Quotation |
| minnesotaite | A silicate of iron and magnesium, (Fe,Mg) 3 Si 4 O 10 (OH) 2 crystallizing in the… | 1944 | Go To Quotation |
| molybdenian | Of a mineral: having a (small) proportion of a constituent element replaced by molybdenum. | 1930 | Go To Quotation |
| moncheite | A trigonal telluride and bismuthide of palladium and platinum, (Pt, Pd)(Te, Bi) 2… | 1963 | Go To Quotation |
| monohydrocalcite | A hydrated trigonal form of calcite, CaCO 3 ·H 2 O, that is white to greyish or light green in colour and occurs in massive form. | 1964 | Go To Quotation |
| montgomeryite | A monoclinic hydrated basic phosphate of calcium and aluminium, Ca 4 Al 5 (PO 4) 6 (OH) 5 ·11H 2 O. | 1940 | Go To Quotation |
| mooreite | A hydrated basic sulphate of magnesium, manganese, and zinc, (Mg,Mn,Zn) 15 (SO 4) 2 (OH) 26… | 1929 | Go To Quotation |
| muscovitic | Of the nature of or characterized by the mineral muscovite. | 1960 | Go To Quotation |
| neighborite | An orthorhombic fluoride of sodium and magnesium, NaMgF 3, which occurs as colourless… | 1961 | Go To Quotation |
| nickelian | Of a mineral: having a (small) proportion of a constituent element replaced by nickel. | 1930 | Go To Quotation |
| ningyoite | A translucent brown or brownish-green mineral which consists of a hydrated phosphate… | 1959 | Go To Quotation |
| niobian | Of a mineral: having a (small) proportion of a constituent element replaced by niobium. | 1956 | Go To Quotation |
| niocalite | A basic orthorhombic silicate and fluoride of niobium and calcium, (Ca,Nb) 4 Si(O,OH,F) 9, which occurs as yellow crystals. | 1956 | Go To Quotation |
| nitratite | = nitratine n. | 1923 | Go To Quotation |
| nobleite | A monoclinic hydrated calcium borate, CaB 6 O 10 ·4H 2 O, occurring as colourless… | 1961 | Go To Quotation |
| nováčekite | A hydrated tetragonal oxide and arsenate of magnesium and uranium, Mg(UO 2) 2 (AsO 4) 2.12H… | 1951 | Go To Quotation |
| novákite | A monoclinic arsenide of copper and silver, Cu 20 AgAs 10, occurring in the Krkonose… | 1959 | Go To Quotation |
| omphacitic | Containing or of the nature of omphacite. | 1963 | Go To Quotation |
| orcelite | A rare mineral of the hexagonal system which consists of an arsenide of nickel and occurs as small bronze-coloured crystals. | 1960 | Go To Quotation |
| papagoite | A rare blue mineral of the monoclinic crystal system consisting of a basic silicate… | 1960 | Go To Quotation |
| pentahydroborite | A mineral consisting of a pentahydrated calcium borate, CaB 2 O 4 ·5H 2 O, occurring… | 1962 | Go To Quotation |
| plazolite | A calcium aluminosilicate mineral occurring as small colourless or pale… | 1920 | Go To Quotation |
| plumbian | Of a mineral: having a (small) proportion of a constituent element replaced by lead. | 1930 | Go To Quotation |
| poughite | A rare mineral of the orthorhombic crystal system which consists of a hydrated… | 1968 | Go To Quotation |
| preobrazhenskite | A rare mineral of the orthorhombic crystal system consisting of a basic magnesium borate, Mg… | 1957 | Go To Quotation |
| probertite | A colourless mineral of the monoclinic crystal system consisting of a hydrated… | 1929 | Go To Quotation |
| pumpellyite | A mineral, or group of minerals resembling epidote in structure, which occur… | 1925 | Go To Quotation |
| pyroxenoid | Any of a small group of triclinic silicates formerly classed as pyroxenes but… | 1937 | Go To Quotation |
| ransomite | A rare mineral formed by the burning of copper pyrites in a mine and occurring as… | 1928 | Go To Quotation |
| reevesite | A rare carbonate mineral related to hydrotalcite, occurring as fine yellow to… | 1967 | Go To Quotation |
| renardite | = dewindtite n. | 1929 | Go To Quotation |
| retgersite | A hydrated form of nickel sulphate which occurs as a secondary mineral associated… | 1949 | Go To Quotation |
| rockbridgeite | An iron-containing mineral which occurs as dark green or black masses and crusts (turning… | 1949 | Go To Quotation |
| röntgenite | A mineral containing the rare earth elements cerium and lanthanum, typically occurring… | 1953 | Go To Quotation |
| rooseveltite | A rare mineral found as a white or grey crust in veinlets of cassiterite in Bolivia, Germany, and elsewhere. | 1947 | Go To Quotation |
| rosenhahnite | A rare mineral occurring as buff to white, tabular or lath-like crystals, typically as a product of high-pressure metamorphism. | 1967 | Go To Quotation |
| rossite | A rare yellow mineral containing vanadium, typically occurring in glassy masses on sandstones containing carnotite. | 1926 | Go To Quotation |
| roweite | A very rare mineral formed by the hydrothermal alteration of manganese ore and occurring as pinkish-brown nodular masses. | 1937 | Go To Quotation |
| sabugalite | A mineral of the autunite group, HAl(UO 2) 2 (PO 4) 4.16–24H 2 O, first found as… | 1951 | Go To Quotation |
| salesite | A very rare basic iodate of copper, CuIO 3 (OH), found as bluish-green orthorhombic… | 1939 | Go To Quotation |
| sanbornite | A triclinic silicate of barium, BaSi 2 O 5, which occurs as white or colourless plates… | 1932 | Go To Quotation |
| schairerite | A sulphate and fluoride of sodium, Na 3 FSO 4, usu. also containing chlorine, first… | 1931 | Go To Quotation |
| schallerite | A reddish-brown basic silicate, arsenate, and chloride of iron and manganese crystallizing in the rhombohedral system. | 1925 | Go To Quotation |
| schoepite | A hydrated form of uranium trioxide found as yellow to brown tabular or… | 1923 | Go To Quotation |
| seamanite | A rare hydrated phosphate and borate of manganese, Mn 3 2+ OH 2 BOH 4 PO 4 … | 1930 | Go To Quotation |
| serpentinite | A rock consisting largely of serpentine or related minerals. | 1936 | Go To Quotation |
| shandite | A sulphide of nickel and lead, Ni 3 Pb 2 S 2, found as yellow rhombohedral crystals. | 1950 | Go To Quotation |
| shortite | A double carbonate of sodium and calcium, Na 2 Ca 2 (CO 3) 3, found as colourless to… | 1939 | Go To Quotation |
| sjögrenite | A hydrated basic carbonate of iron and magnesium found as yellowish or brownish… | 1941 | Go To Quotation |
| sodian | Of a mineral: having a proportion of a constituent element replaced by sodium. | 1930 | Go To Quotation |
| steigerite | A monoclinic hydrated aluminium vanadate, AlVO 4.3H 2 O, found as a canary-yellow… | 1935 | Go To Quotation |
| sterrettite | A hydrous basic phosphate of scandium occurring as transparent, usually… | 1940 | Go To Quotation |
| stibarsen | A greyish-white mineral of metallic appearance, consisting of a compound of antimony and arsenic. Cf. allemontite n. | 1941 | Go To Quotation |
| stilleite | Native zinc selenide, ZnSe, found as grey or black cubic crystals. | 1957 | Go To Quotation |
| stranskiite | An arsenate of zinc and copper, Zn 2 Cu(AsO 4) 2, found as blue triclinic crystals. | 1960 | Go To Quotation |
| strontian | Of a mineral: having a (small) proportion of a constituent element replaced by strontium. | 1930 | Go To Quotation |
| sudoite | (See quot. 1963.) | 1963 | Go To Quotation |
| switzerite | A hydrated phosphate of manganese and iron, (Mn, Fe) 3 (PO 4) 2.4H 2 O, found as pink to brown monoclinic crystals. | 1967 | Go To Quotation |
| syntaxic | Crystallogr. = syntaxial adj. at syntaxy n. Derivatives. | 1944 | Go To Quotation |
| tantalian | Of a mineral: having a (small) proportion of a constituent element replaced by tantalum. | 1930 | Go To Quotation |
| tenebrescence | The property of reversibly darkening and bleaching in response to radiation… | 1953 | Go To Quotation |
| teruggite | A hydrated arsenate and borate of calcium and magnesium, Ca 4 MgB 12 O 20 (AsO 4) 2.18H 2… | 1968 | Go To Quotation |
| thorian | Of a mineral: having a (small) proportion of a constituent element replaced by thorium. | 1930 | Go To Quotation |
| thucholite | A naturally occurring brittle, highly lustrous, black mixture or complex of carbon and hydrocarbons with uraninite. | 1928 | Go To Quotation |
| tilleyite | A silicate and carbonate of calcium, Ca 5 Si 2 O 7 (CO 3) 2, found as white monoclinic crystals. | 1933 | Go To Quotation |
| tinticite | A hydrated basic ferric phosphate, Fe 6 (PO 4) 4 (OH) 6.7H 2 O, found as whitish masses of submicroscopic crystals. | 1946 | Go To Quotation |
| torreyite | A hydrated basic sulphate of magnesium, manganese, and zinc, (Mg, Mn) 5 Zn 2 SO 4 (OH) 12.4H… | 1949 | Go To Quotation |
| Tschermak | Used attrib. and in the possessive to designate the synthetic pyroxene CaAl(AlSi)O 6… | 1943 | Go To Quotation |
| tundrite | A silicate and carbonate (essentially) of cerium (normal tundrite, tundrite-(Ce))… | 1965 | Go To Quotation |
| unmixing | The process by which the components of a mixture separate. | 1929 | Go To Quotation |
| uralborite | A basic calcium borate, CaB 2 O 4, occurring as colourless monoclinic crystals. | 1962 | Go To Quotation |
| vaesite | A mineral of the pyrite group, ideally nickel sulphide, NiS 2, found as grey isometric crystals. | 1945 | Go To Quotation |
| vanadian | Of a mineral: having a (usu. small) proportion of a constituent element replaced by vanadium. | 1930 | Go To Quotation |
| veatchite | Any of three polymorphs of a hydrous strontium borate, Sr 2 [B 5 O 8 (OH)] 2· B(OH) 3· H 2… | 1938 | Go To Quotation |
| vonsenite | A borate of ferrous and ferric iron, Fe II 2 Fe III BO 5, that occurs as… | 1920 | Go To Quotation |
| vuagnatite | A basic silicate of calcium and aluminium, CaAl(OH)SiO 4, found as white, usu. anhedral, orthorhombic crystals. | 1976 | Go To Quotation |
| weeksite | A hydrated silicate and oxide of uranium and potassium, K 2 (UO 2) 2 (Si 2 O 5) 3 ·4H 2… | 1960 | Go To Quotation |
| westerveldite | An arsenic-containing mineral which occurs as microscopic brownish or silvery… | 1972 | Go To Quotation |
| whitmoreite | A secondary hydrated basic phosphate of ferric and ferrous iron, Fe 2+ Fe 3+ 2 (PO 4) 2… | 1974 | Go To Quotation |
| wolfeite | A basic phosphate of ferrous iron and bivalent manganese, (Fe 2+,Mn 2+) 2 (PO 4)(OH)… | 1949 | Go To Quotation |
| woodhouseite | A hydrated sulphate and phosphate of calcium and aluminium, CaAl 3 (PO 4)(SO 4)(OH) 6… | 1937 | Go To Quotation |
| woodruffite | A hydrated oxide of zinc and manganese, (Zn,Mn 4+ 3)Mn 4+ O 7.1–2H 2 O, found as black or grey monoclinic crystals. | 1953 | Go To Quotation |
| zincian | Of a mineral: having a (small) proportion of a constituent element replaced by zinc. | 1930 | Go To Quotation |
| zussmanite | A rhombohedral aluminosilicate of potassium, ferrous iron, and other metals, K(Fe… | 1965 | Go To Quotation |
