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Sinhalite
Sinhalite

Ettringite
Ettringite



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Sinhalite
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Ettringite

Sinhalite and Ettringite Physical Properties

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
3.46-3.501.77
Amber
1 7.18
1.5 Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Not Available
1.6 Cleavage
Not Available
Perfect on {10 1 0}
1.7 Mohs Hardness
6-72-2.5
Amber
2 10
1.8 Chemical Composition
MgAlBO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael O’Donoghue , Gems, Sixth Edition (2006)

Sinhalite and Ettringite Chemical Formula

While comparing Sinhalite 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 Sinhalite and Ettringite chemical formula.

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

Sinhalite and Ettringite Specific Gravity

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