Mohs Hardness Scale Vitreous Luster, any color can occur ...
Glass Yellow/ Light Brown Streak Earthy Luster, found in earthy masses, Hardness 1 Limonite Light Yellow Bright Yellow color Resinous or vitreous luster. Bright yellow color. Hardness 1.5-2.5 Sulfur Light Green Bright Bluegreen Color Bright bluegreen/ green. Hardness 3.5-4. Occurs usually as tiny crystals. Often associated with azurite (bright ...
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