Moh’s Scale Hardness: 7-7.5
Specific Gravity: 2.96-3.31
Refractive Index: 1.610-1.735
Treatment: Occasionally Heated
Stability/Care: Excellent / Normal
Origin: Brazil & Africa
Refractive Index: 1.610-1.735
Treatment: Occasionally Heated
Stability/Care: Excellent / Normal
Origin: Brazil & Africa
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