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Sylvite
Sylvite

Astrophyllite
Astrophyllite



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Sylvite
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Astrophyllite

Sylvite and Astrophyllite Physical Properties

1 Physical Properties
1.1 Tenacity
Brittle
Not Available
1.2 Solubility
Soluble
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
1.9933.2-3.4
Amber
1 7.18
1.5 Fracture
Uneven, Brittle
Uneven, Brittle, Metallic
1.6 Cleavage
Perfect on [100], [010], [001]
Perfect on [001] imperfect on [100]
1.7 Mohs Hardness
2.53
Amber
2 10
1.8 Chemical Composition
Not Available
(K,Na) 3(Fe2+ ,Mn) 7Ti 2Si 8O 24(O,OH) 7Anthony et al , Handbook of mineralogy (2001)

Sylvite and Astrophyllite Chemical Formula

While comparing Sylvite and Astrophyllite 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 Sylvite and Astrophyllite chemical formula.

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  • Chemical formula of Astrophyllite- (K,Na) 3(Fe2+ ,Mn) 7Ti 2Si 8O 24(O,OH) 7Anthony et al , Handbook of mineralogy (2001)

Sylvite and Astrophyllite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sylvite and Astrophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sylvite and Astrophyllite Optical Properties during the identification of gemstone. Specific gravity of Sylvite is 3.2-3.4 whereas that of Astrophyllite is 3.2-3.4.