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GLENDALE COMMUNITY COLLEGE EARTH SCIENCE IMAGE ARCHIVE ASTRONOMY GEOLOGY METEOROLOGY MUSEUM TOUR PHS 120 PHS 120 ONLINE HOME |
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CHEMISTRY - Mg2Al(SiAl)O5(OH)4 CRYSTALLOGRAPHY - Triclinic CRYSTAL GROWTH AND HABITS - Amesite is found as tapering psuedohexagonal prisms or as tabular groups. COLOR AND OTHER OPTICAL PROPERTIES - Colorless to lilac, pink to greenish; transparent to translucent. HARDNESS - 2.5 - 3 SPECIFIC GRAVITY - 2.78 LUSTER - Vitreous to pearly on cleavage faces. STREAK - White, sometimes with a pale green hue BREAKABILITY - Perfect micaceous cleavage along {001}; brittle OCCURRENCE - Amesite is a mineral produced by the low grade metamorphism of rocks rich in aluminum and magnesium. ASSOCIATED MINERALS - Chlorite, Magnetite, Diaspore, Rutile, Grossular Garnet, Calcite, Diopside, Clinozoisite. NAME - In honor of James Ames, a mine owner. |