A study of the chemistry, structure, and physical properties of minerals.
Mineralogy
Displaying 1901 - 2000 of 2805
| Cat. # | Name | Description | ||
|---|---|---|---|---|
| 1901 | 00.2.15.304.0004 | Calcite | Vein filling. |
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| 1902 | 00.2.15.304.0009 | Gypsum | Concretion. |
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| 1903 | 00.2.15.328.0001 | Pyrite | Iron pyrites, fossil? |
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| 1904 | 00.2.23.705.0021 | Unk | None |
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| 1905 | 00.2.23.708.0006 | Pyrite | Stalactite |
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| 1906 | 00.2.23.708.0007 | Pyrite | Stalactite |
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| 1907 | 00.2.23.708.0008 | Pyrite | Stalactite |
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| 1908 | 00.2.23.708.0009 | Pyrite | Stalactite |
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| 1909 | 00.2.23.708.0010 | Pyrite | Stalactite |
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| 1910 | 00.2.23.708.0011 | Pyrite | Stalactite |
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| 1911 | 00.2.23.708.0012 | Pyrite | Stalactite |
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| 1912 | 00.2.23.708.0013 | Pyrite | Stalactite |
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| 1913 | 00.2.23.708.0014 | Pyrite | Stalactite |
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| 1914 | 00.2.23.708.0015 | Pyrite | Stalactite |
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| 1915 | 00.2.23.708.0016 | Pyrite | Stalactite |
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| 1916 | 00.2.23.708.0017 | Pyrite | Stalactite |
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| 1917 | 00.2.23.708.0018 | Pyrite | Stalactite |
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| 1918 | 00.2.23.713.30 | Geode | Banded smokey quartz geode |
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| 1919 | 00.2.3.640.0005 | Acanthite | Massive. |
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| 1920 | 00.2.3.645.2 | Galena | Crystals. |
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| 1921 | 00.2.3.651.0004 | Unk | None |
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| 1922 | 00.2.3.663.0009 | Tungsten | Ore, 68%. |
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| 1923 | 00.2.3.663.0010 | Meteorite | Meteorite collected from August 1890 Fall |
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| 1924 | 00.2.3.665.0007 | Natron | None |
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| 1925 | 00.2.3.670.0008 | Staurolite | Twinned crystal. Color: BR |
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| 1926 | 00.2.3.671.0005 | Actinolite (Amphibole group) | Aggregate of thin radiating crystals. Color: GR |
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| 1927 | 00.2.3.680.0004 | Unk | None |
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| 1928 | 00.2.3.680.0006 | Helectite | in exhibit from 1992-2006 |
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| 1929 | 00.2.3.693.5 | Quartz | Fragment of geode. |
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| 1930 | 00.2.4.1.0002 | Gold | Roasted ore. |
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| 1931 | 00.2.4.10.0011 | Unk | None |
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| 1932 | 00.2.4.12.0011 | Unk | None |
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| 1933 | 00.2.4.12.0012 | Unk | None |
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| 1934 | 00.2.4.20.0013 | Unk | None |
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| 1935 | 00.2.4.24.0006 | Galena | Massive galena in quartz with small amounts of chalcopyrite. Color: GY |
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| 1936 | 00.2.4.27.0003 | Sphalerite | Crushed. |
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| 1937 | 00.2.4.34.0002 | Pyrite | All specimens a mixture of pyrite, quartz and crystals of both. Hand specimen is probably chalcopyrite on calcite crystals. |
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| 1938 | 00.2.4.40.1 | Arsenopyrite | None |
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| 1939 | 00.2.4.42.0003 | Silver | None |
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| 1940 | 00.2.4.42.0007 | Unk | Missing. |
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| 1941 | 00.2.4.47.6 | Pyrite | None |
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| 1942 | 00.2.4.9.0012 | Unk | None |
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| 1943 | 00.2.5.105.0012 | Quartz, smoky | Smoky. |
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| 1944 | 00.2.5.106.0014 | Quartz, amethyst | Crystal. |
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| 1945 | 00.2.5.112.0006 | Quartz | Botryoidal surface. |
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| 1946 | 00.2.5.118.0006 | Unk | Missing. |
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| 1947 | 00.2.5.118.0008 | Unk | Missing. |
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| 1948 | 00.2.5.119.0005 | Unk | Missing. |
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| 1949 | 00.2.5.131.0006 | Quartz var. Agate (Silica group) | Agate-like chaldeconyin crystal quartz. |
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| 1950 | 00.2.5.135.0001 | Quartz | Crystals of SiO2. |
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| 1951 | 00.2.5.135.0003 | Quartz | Quartz pebbles. |
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| 1952 | 00.2.5.135.0004 | Quartz, geode | None |
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| 1953 | 00.2.5.135.6 | Crystals, amethystine | None |
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| 1954 | 00.2.5.137.11 | Zinnwaldite | Zinnwaldite is a very rare member of the mica group and is not well known even by mineral collectors. Zinnwaldite is darker colored than typical muscovite but lighter than phlogopite or biotite The dark color and density in the three iron containing micas increase with an increase in the iron and magnesium content. Zinnwaldite is difficult to distinguish from the other micas at least by ordinary methods and lacallity and enviroment are keys to identification. It is limited to special granites and their pegmatites. Zinnwaldite, like other micas, has a layered structure of lithium iron aluminum silicate sheets weakly bonded together by layers of potassium ions. These potassium ion layers produce the perfect cleavage. Zinnwaldite is rarely available to collectors but some nice specimens with apatite are now on the market showing nice tabular crystals. |
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| 1955 | 00.2.5.97.0013 | Quartz | Crystal |
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| 1956 | 00.2.5.99.0008 | Quartz | Crystals. |
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| 1957 | 00.2.6.203.0004 | Cerussite | Cerussite, lead carbonate. |
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| 1958 | 00.2.6.229.0002 | Gypsum | None |
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| 1959 | 00.2.6.239.0005 | Gypsum | Shadow crystals. |
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| 1960 | 00.2.6.240.0002 | Cahnite | None |
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| 1961 | 00.2.8.491.0015 | Zinc | None |
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| 1962 | 00.2.9.50.0003 | Hematite | None |
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| 1963 | 00.2.9.52.0003 | Hematite | Oolitic. Color: RD-BK |
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| 1964 | 00.2.9.52.0005 | Hematite | Massive. Color: BR-RD |
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| 1965 | 00.2.9.53.15 | Hematite | Hematite iron ore. |
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| 1966 | 00.2.9.55.0004 | Magnetite | Coarsely granular. |
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| 1967 | 00.2.9.62.0004 | Wollastonite | None |
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| 1968 | 00.2.9.65.0015 | Chrysotile | Chrysolite asbestos. Impure. |
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| 1969 | 00.2.9.66.0003 | Beryl | None |
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| 1970 | 00.2.9.67.0016 | Muscovite | Type of muscovite referred to as plumose. Color: SL |
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| 1971 | 00.2.9.68.0003 | Oligoclase (Feldspar group) | None |
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| 1972 | 00.2.9.68.0011 | Feldspar | None |
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| 1973 | 00.2.9.68.0013 | Orthoclase (Feldspar group) | Orthoclase. Green feldspar. |
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| 1974 | 00.2.9.73.0010 | Zincite | Typical conglomerate of zincite, franklinite and willemite grains and blebs. Color: RD |
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| 1975 | 00.2.9.84.0004 | Unk | None |
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| 1976 | 00.2.9.87.0002 | Zinc | Four main specimens with miniature fragments |
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| 1977 | 00.2.9.89.2 | Limonite | 2 pieces of Limonite |
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| 1978 | 00.2.9.94.0008 | Brookite | Cluster of crystals to 1/4" on one corner of matrix. Color: BK |
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| 1979 | 00.3.10.174.5 | Stalactite | None |
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| 1980 | 00.3.3.663.0010 | Meteorite, stony | Fragment of fall, August, 1890. Shows fusion crust. |
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| 1981 | 00.3.4.44.0009 | Meteorite | Nickel-iron; slice of meteorite from 1874 fall. |
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| 1982 | 00.3.5.116.11 | Agate | Agate |
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| 1983 | 00.3.9.57.0004 | Limonite | None |
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| 1984 | 11.11.12 | Calcite | Crystals. |
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| 1985 | 1968.9.14893 | Alum | Aluminum sulfate any of a group of hydrated double salts, usually consisting of aluminum sulfate, water of hydration, and the sulfate of another element. A whole series of hydrated double salts results from the hydration of the sulfate of a univalent cation (e.g., potassium) and the sulfate of any one of a number of trivalent cations (e.g., aluminum). |
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| 1986 | 1968.9.14902 | Gypsum | Reddish brown, translucent cleavage. |
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| 1987 | 1968.9.17056 | Gypsum | Clear, cleavage fragments. |
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| 1988 | 1968.9.17079 | Chrysocolla | Massive. Color: AQ |
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| 1989 | 1968.9.36.14888.0001 | Halite | Plain. |
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| 1990 | 1968.9.36.14888.0002 | Halite | Plain. |
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| 1991 | 1968.9.36.14888.0003 | Halite | Plain. |
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| 1992 | 1968.9.36.14888.0004 | Halite | Plain. |
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| 1993 | 1968.9.36.14888.0005 | Halite | Plain. |
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| 1994 | 1968.9.36.14888.0006 | Halite | Plain. |
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| 1995 | 1968.9.36.14888.0007 | Halite | Plain. |
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| 1996 | 1968.9.36.14893.0001 | Alum | Aluminum sulfate any of a group of hydrated double salts, usually consisting of aluminum sulfate, water of hydration, and the sulfate of another element. A whole series of hydrated double salts results from the hydration of the sulfate of a univalent cation (e.g., potassium) and the sulfate of any one of a number of trivalent cations (e.g., aluminum). |
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| 1997 | 1968.9.36.14893.0002 | Alum | Aluminum sulfate any of a group of hydrated double salts, usually consisting of aluminum sulfate, water of hydration, and the sulfate of another element. A whole series of hydrated double salts results from the hydration of the sulfate of a univalent cation (e.g., potassium) and the sulfate of any one of a number of trivalent cations (e.g., aluminum). |
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| 1998 | 1968.9.36.14893.0003 | Alum | Aluminum sulfate any of a group of hydrated double salts, usually consisting of aluminum sulfate, water of hydration, and the sulfate of another element. A whole series of hydrated double salts results from the hydration of the sulfate of a univalent cation (e.g., potassium) and the sulfate of any one of a number of trivalent cations (e.g., aluminum). |
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| 1999 | 1968.9.36.14893.0004 | Alum | Aluminum sulfate any of a group of hydrated double salts, usually consisting of aluminum sulfate, water of hydration, and the sulfate of another element. A whole series of hydrated double salts results from the hydration of the sulfate of a univalent cation (e.g., potassium) and the sulfate of any one of a number of trivalent cations (e.g., aluminum). |
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| 2000 | 1968.9.36.14893.0005 | Alum | Aluminum sulfate any of a group of hydrated double salts, usually consisting of aluminum sulfate, water of hydration, and the sulfate of another element. A whole series of hydrated double salts results from the hydration of the sulfate of a univalent cation (e.g., potassium) and the sulfate of any one of a number of trivalent cations (e.g., aluminum). |
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