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Heliotrope
Heliotrope

Riebeckite
Riebeckite



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Heliotrope
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Riebeckite
1 Physical Properties
1.1 Tenacity
Not Available
Brittle
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.613.28-3.44
Amber
1 7.18
1.5 Fracture
Not Available
Uneven, Splintery, Brittle
1.6 Cleavage
Not Available
Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}
1.7 Mohs Hardness
6.5-75.0-6.0
Amber
2 10
1.8 Chemical Composition
Not Available
Not Available