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Hackmanite
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Ceylonite
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Hackmanite
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Ceylonite
Hackmanite
Ceylonite
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Summary
Astrology
Physical Properties
Optical Properties
Benefits
All
Physical Properties
Tenacity
Solubility
Durability
Specific Gravity
Fracture
Cleavage
Mohs Hardness
Chemical Composition
-
-
-
2.27-2.33
-
Perfect
5.5-6
Na 8Al 6Si 6O 24Cl 2Michael OâDonoghue , Gems, Sixth Edition (2006)
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-
-
3.63-3.9
Conchoidal, Uneven
Indistinct
7.5-8
(Mg,Fe2+ )Al 2O 4Gemdat.org , Management Team (2012) More from other references
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