colourless; yellow, brownish, greyish-green, red, Purple, blue
Streak
white
Luster
Vitreous
Refractive Index
n = 1.494 n = 1.505 n = 1.516
Diaphaneity
Transparent
Cleavage
Perfect, perfect.
Fracture
Splintery
Crystal Habit：Crystals thick tabular to equidimensional; often exhibiting numerous forms. Occurs as crystalline coatings and clusters in cavities or fissures in which single crystals may reach several centimeters; granular massive.
YueGongAnBei 44051102000467
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