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Almandine Garnet and Ettringite Physical Properties


Ettringite and Almandine Garnet Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Partially soluble in water   

Durability
Not Available   
Not Available   

Specific Gravity
4.3   
1.77   

Fracture
Not Available   
Not Available   

Cleavage
None.   
Perfect on {10 1 0}   

Mohs Hardness
7.5-8.5   
2-2.5   

Chemical Composition
Fe3Al2Si3O12   
Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael O’Donoghue , Gems, Sixth Edition (2006)   

Optical Properties >>
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Almandine Garnet and Ettringite Chemical Formula

While comparing Almandine Garnet and Ettringite 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 Almandine Garnet and Ettringite chemical formula.

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Almandine Garnet and Ettringite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Almandine Garnet and Ettringite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Almandine Garnet and Ettringite Optical Properties during the identification of gemstone. Specific gravity of Almandine Garnet is 1.77 whereas that of Ettringite is 1.77.

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