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Ettringite and Montebrasite Physical Properties


Montebrasite 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   
2.98-3.10   

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

Cleavage
Perfect on {10 1 0}   
{100} Perfect, {110} Good, {011} Distinct   

Mohs Hardness
2-2.5   
5.5-6   

Chemical Composition
Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael O’Donoghue , Gems, Sixth Edition (2006)   
LiAl(PO 4)(OH,F)Walter Schumann , Gemstones of the world (2001) More from other references   

Optical Properties >>
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Ettringite and Montebrasite Chemical Formula

While comparing Ettringite and Montebrasite 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 Montebrasite chemical formula.

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Ettringite and Montebrasite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ettringite and Montebrasite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ettringite and Montebrasite Optical Properties during the identification of gemstone. Specific gravity of Ettringite is 2.98-3.10 whereas that of Montebrasite is 2.98-3.10.

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