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Jet lignite
Jet lignite

Astrophyllite
Astrophyllite



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Jet lignite
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Astrophyllite

Jet lignite and Astrophyllite 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
1.30-1.343.2-3.4
Amber
1 7.18
1.5 Fracture
Not Available
Uneven, Brittle, Metallic
1.6 Cleavage
Not Available
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)

Jet lignite and Astrophyllite Chemical Formula

While comparing Jet lignite 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 Jet lignite 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)

Jet lignite and Astrophyllite Specific Gravity

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