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Apophyllite and Datolite Physical Properties


Datolite and Apophyllite Physical Properties


Physical Properties

Tenacity
Not Available   
Brittle   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.30-2.50   
2.90-3.00   

Fracture
Uneven, UnevenArthur Thomas, Gemstones (2009)   
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Metallic   

Cleavage
Perfect on (001)   
None   

Mohs Hardness
4.5-5   
5-5.5   

Chemical Composition
KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.   
CaBSiO 4(OH)Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references   

Optical Properties >>
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Apophyllite and Datolite Chemical Formula

While comparing Apophyllite and Datolite 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 Apophyllite and Datolite chemical formula.

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Apophyllite and Datolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Apophyllite and Datolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Apophyllite and Datolite Optical Properties during the identification of gemstone. Specific gravity of Apophyllite is 2.90-3.00 whereas that of Datolite is 2.90-3.00.

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Red Gemstones


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