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Ettringite and Aegirine Physical Properties


Aegirine and Ettringite Physical Properties


Physical Properties

Tenacity
Not Available   
Brittle   

Solubility
Partially soluble in water   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
1.77   
3.50-3.60   

Fracture
Not Available   
Uneven, Brittle, Metallic, Brittle, Metallic, Brittle, Metallic   

Cleavage
Perfect on {10 1 0}   
Good on {110}, (110) ^ (1 1 0) ≈87°; parting on {100}   

Mohs Hardness
2-2.5   
6   

Chemical Composition
Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael O’Donoghue , Gems, Sixth Edition (2006)   
(Na,Fe,Ca)Si 2O 6Ulrich Henn and Claudio C.   

Optical Properties >>
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Ettringite and Aegirine Chemical Formula

While comparing Ettringite and Aegirine 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 Aegirine chemical formula.

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Ettringite and Aegirine Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ettringite and Aegirine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ettringite and Aegirine Optical Properties during the identification of gemstone. Specific gravity of Ettringite is 3.50-3.60 whereas that of Aegirine is 3.50-3.60.

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