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Definitions of Crystallography Terms
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aluminum angles antimony arsenic associated axis basal bead blowpipe blue brown calcite calcium cent chalcopyrite charcoal chemical chiefly cleavage closed tube coating cobalt Color G. H. Remarks colorless common commonly Composition copper corundum Crystal System crystalline crystallographic axes Crystallography cube deposits Diagnostic Features dipyramid distinguished dodecahedron faces feldspar fibrous fluorite frequently fused Fusible G. H. Remarks Name galena gives globule gold granular gray Greek word meaning green gypsum heated hexagonal hydrochloric acid hydrous igneous rocks iron Isometric limestone Luster Luster vitreous magnesium magnetite manganese masses massive metallic metamorphic mica mineral Monoclinic nepheline nickel Occurrence octahedron Orthorhombic parallel pegmatite Physical Properties pinacoid plane potassium precipitate prism produced pyrite pyroxene quartz rare Rhombohedral salt silicate silver small amounts sodium carbonate soluble solution specific gravity sphalerite Streak sulfate sulfide sulfur symmetry Tests Tetragonal Transparent to translucent Triclinic twin United usually variety veins yellow zinc