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Minerals

Mineral names, hardness, and how they break

QuestionAnswer
Quartz 7, no streak, fracture
Feldspar 6, no streak, cleave 2 directions
Muscovite Cleave 1 direction, 2.5, no streak
Biotite Cleave 1 direction, less than 1, gold streak
Calcite Cleave 3 directions, 3, white streak
Magnetite Fracture, 7, black streak
Hematite Cleave 1 direction, 8, brownish/orange streak
Pyrite Fracture, 6, black streak
Galena Cleave, 9, no streak
Flourite Cleave 4 directions. 4, white streak
Olivine Fracture, 9, no streak
Talc Fracture, 1, silver streak
Created by: sunshine44
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