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Jet
Jet

Ettringite
Ettringite



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Jet
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Ettringite

Jet and Ettringite Physical Properties

Jet
Jet
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1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
Partially soluble in water
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
1.19-1.351.77
Amber
1 7.18
1.5 Fracture
ConchoidalWalter Schumann, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references
Not Available
1.6 Cleavage
Not Available
Perfect on {10 1 0}
1.7 Mohs Hardness
2.5-42-2.5
Amber
2 10
1.8 Chemical Composition
Not Available
Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael O’Donoghue , Gems, Sixth Edition (2006)

Jet and Ettringite Chemical Formula

While comparing Jet 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 Jet and Ettringite chemical formula.

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  • Chemical formula of Ettringite- Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael O’Donoghue , Gems, Sixth Edition (2006)

Jet and Ettringite Specific Gravity

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