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Ettringite and Povondraite Physical Properties


Povondraite and Ettringite Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Partially soluble in water   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
1.77   
3.26   

Fracture
Not Available   
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001)   

Cleavage
Perfect on {10 1 0}   
None   

Mohs Hardness
2-2.5   
Not Available   

Chemical Composition
Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael O’Donoghue , Gems, Sixth Edition (2006)   
NaFe3+3Fe3+6(BO 3) 3Si 6O 18(O,OH) 4Anthony et al , Handbook of Mineralogy (2001)   

Optical Properties >>
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Ettringite and Povondraite Chemical Formula

While comparing Ettringite and Povondraite 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 Ettringite and Povondraite chemical formula.

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Ettringite and Povondraite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ettringite and Povondraite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ettringite and Povondraite Optical Properties during the identification of gemstone. Specific gravity of Ettringite is 3.26 whereas that of Povondraite is 3.26.

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