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Geology 101

Mineral Profiles

QuestionAnswer
Olivine 6.5-7 hardness, white streak, Green color, conchoidal fracture, non-metallic dull/earthy
Calcite 3 hardness, white streak, colorless, conchoidal fracture, non-metallic
Muscovite 2-2.5 hardness, white streak, no color, perfect cleavage, non-metallic glassy
Potassium Feldspar 7.0 Hardness, white streak, red-brown color, 90 degree cleavage, non metallic
Plagioclase Feldspar 6.5 Hardness, white streak, Grey color, two directions at 90 degree, non metallic
Pyroxene Augite 5-6 hardness, greenish white streak, dark green, cleavage is perfect in two lengthwise, non metallic
Quartz 7 hardness, white streak, variable color, conchoidal fracture, non metallic
Biotite 2.5 hardness, white streak, Brown color, one plane, non metallic
Created by: crescenti
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