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Astrophyllite
Astrophyllite

Uvarovite
Uvarovite



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Astrophyllite
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Uvarovite

Astrophyllite and Uvarovite Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.2-3.43.77
Amber
1 7.18
1.5 Fracture
Uneven, Brittle, Metallic
Uneven, Conchoidal, Brittle, Metallic, ConchoidalArthur Thomas, Gemstones (2009)
1.6 Cleavage
Perfect on [001] imperfect on [100]
None
1.7 Mohs Hardness
36.5-7.5
Amber
2 10
1.8 Chemical Composition
(K,Na) 3(Fe2+ ,Mn) 7Ti 2Si 8O 24(O,OH) 7Anthony et al , Handbook of mineralogy (2001)
Ca 3Cr 2(SiO 4) 3Ulrich Henn and Claudio C.

Astrophyllite and Uvarovite Chemical Formula

While comparing Astrophyllite and Uvarovite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Astrophyllite and Uvarovite chemical formula.

  • Chemical formula of Astrophyllite- (K,Na) 3(Fe2+ ,Mn) 7Ti 2Si 8O 24(O,OH) 7Anthony et al , Handbook of mineralogy (2001)
  • Chemical formula of Uvarovite- Ca 3Cr 2(SiO 4) 3Ulrich Henn and Claudio C.

Astrophyllite and Uvarovite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Astrophyllite and Uvarovite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Astrophyllite and Uvarovite Optical Properties during the identification of gemstone. Specific gravity of Astrophyllite is 3.77 whereas that of Uvarovite is 3.77.