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Pumpellyite and Anhydrite Physical Properties


Anhydrite and Pumpellyite Physical Properties


Physical Properties

Tenacity
Not Available   
Brittle   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.20-3.30   
2.90-2.98   

Fracture
Not Available   
Conchoidal, Brittle, Conchoidal, UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal   

Cleavage
Not Available   
Rare tabular and prismatic crystals. Usually occurs as fibrous, parallel veins that break off into cleavage fragments.   

Mohs Hardness
5-6   
3.5   

Chemical Composition
Ca 2(Mg,Fe,Mn,Al) 2(SiO 4)(Si 2O 7)(OH) 2 · H 2OUlrich Henn and Claudio C.   
CaSO 4Michael O’Donoghue , Gems, Sixth edition (2006) More from other references   

Optical Properties >>
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Pumpellyite and Anhydrite Chemical Formula

While comparing Pumpellyite and Anhydrite 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 Pumpellyite and Anhydrite chemical formula.

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Pumpellyite and Anhydrite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pumpellyite and Anhydrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pumpellyite and Anhydrite Optical Properties during the identification of gemstone. Specific gravity of Pumpellyite is 2.90-2.98 whereas that of Anhydrite is 2.90-2.98.

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