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Ettringite
Ettringite

Langbeinite
Langbeinite



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Ettringite
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Langbeinite

Ettringite and Langbeinite Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Brittle
1.2 Solubility
Partially soluble in water
Slowly dissolves in water
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
1.77
Not Available
1.5 Fracture
Not Available
Conchoidal, Brittle
1.6 Cleavage
Perfect on {10 1 0}
None
1.7 Mohs Hardness
2-2.5
3.5-4
1.8 Chemical Composition
Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael O’Donoghue , Gems, Sixth Edition (2006)
Not Available

Ettringite and Langbeinite Chemical Formula

While comparing Ettringite and Langbeinite 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 Langbeinite chemical formula.

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

Another important criteria for qualitative analysis of gemstones is Ettringite and Langbeinite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ettringite and Langbeinite Optical Properties during the identification of gemstone. Specific gravity of Ettringite is Not Available whereas that of Langbeinite is Not Available.