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Ettringite
Ettringite

Celestine
Celestine



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Ettringite
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Celestine

Ettringite and Celestine Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Brittle
1.2 Solubility
Partially soluble in water
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
1.773.90-4.00
Amber
1 7.18
1.5 Fracture
Not Available
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
1.6 Cleavage
Perfect on {10 1 0}
Perfect on {001}, good on {210}, poor on {010}
1.7 Mohs Hardness
2-2.53-3.5
Amber
2 10
1.8 Chemical Composition
Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael O’Donoghue , Gems, Sixth Edition (2006)
SrSO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Ettringite and Celestine Chemical Formula

While comparing Ettringite and Celestine 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 Celestine chemical formula.

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

Ettringite and Celestine Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ettringite and Celestine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ettringite and Celestine Optical Properties during the identification of gemstone. Specific gravity of Ettringite is 3.90-4.00 whereas that of Celestine is 3.90-4.00.