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Fayalite and Anhydrite Physical Properties


Anhydrite and Fayalite Physical Properties


Physical Properties

Tenacity
Not Available   
Brittle   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
4.392   
2.90-2.98   

Fracture
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle   
Conchoidal, Brittle, Conchoidal, UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal   

Cleavage
{010} moderate, {100} imperfect   
Rare tabular and prismatic crystals. Usually occurs as fibrous, parallel veins that break off into cleavage fragments.   

Mohs Hardness
6.5-7   
3.5   

Chemical Composition
Fe 2SiO 4Michael O’Donoghue , Gems, Sixth Edition (2006)   
CaSO 4Michael O’Donoghue , Gems, Sixth edition (2006) More from other references   

Optical Properties >>
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Fayalite and Anhydrite Chemical Formula

While comparing Fayalite 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 Fayalite and Anhydrite chemical formula.

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Fayalite and Anhydrite Specific Gravity

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

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