Mineral Chart: Includes all 6 crystal classes and presents the physical properties: hardness, habit, luster, cleavage, specific gravity, color, fluorescence, and streak. #MInerals #Chart

Mineral Chart: Includes all 6 crystal classes and presents the physical properties: hardness, habit, luster, cleavage, specific gravity, color, fluorescence, and streak. #MInerals #Chart

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