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Vanadinite
Vanadinite

Ettringite
Ettringite



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Vanadinite
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Ettringite

Vanadinite and Ettringite Physical Properties

Physical Properties

Tenacity

Brittle
-

Solubility

-
Partially soluble in water

Durability

-
-

Specific Gravity

6.8-7.11.77
1 7.18
👆🏻

Fracture

Uneven, Conchoidal
-

Cleavage

None
Perfect on {10 1 0}

Mohs Hardness

3-42-2.5
2 10
👆🏻

Chemical Composition

C20H36
Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael O’Donoghue , Gems, Sixth Edition (2006)

Vanadinite and Ettringite Chemical Formula

While comparing Vanadinite 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 Vanadinite and Ettringite chemical formula.

  • Chemical formula of Vanadinite- C20H36
  • Chemical formula of Ettringite- Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael O’Donoghue , Gems, Sixth Edition (2006)

Vanadinite and Ettringite Specific Gravity

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