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Prasiolite and Astrophyllite Physical Properties


Astrophyllite and Prasiolite Physical Properties


Physical Properties

Tenacity
Brittle   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.65   
3.2-3.4   

Fracture
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)   
Uneven, Brittle, Metallic   

Cleavage
3,1   
Perfect on [001] imperfect on [100]   

Mohs Hardness
7   
3   

Chemical Composition
SiO 2Ulrich Henn and Claudio C.   
(K,Na) 3(Fe2+ ,Mn) 7Ti 2Si 8O 24(O,OH) 7Anthony et al , Handbook of mineralogy (2001)   

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Prasiolite and Astrophyllite Chemical Formula

While comparing Prasiolite 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 Prasiolite and Astrophyllite chemical formula.

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Prasiolite and Astrophyllite Specific Gravity

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

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