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Riebeckite
Riebeckite

Anatase
Anatase



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Riebeckite
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Anatase
1 Physical Properties
1.1 Tenacity
Brittle
Brittle
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.28-3.443.82-3.97
Amber
1 7.18
1.8 Fracture
Uneven, Splintery, Brittle
Subconchoidal, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009)
1.9 Cleavage
Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}
Perfect on [001] and [011]
1.10 Mohs Hardness
5.0-6.05.5-6
Amber
2 10
1.11 Chemical Composition
Not Available
TiO 2Michael O’Donoghue , Gems, Sixth edition (2006) More from other references