Ettringite and Microlite Physical Properties

Ettringite

Microlite

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Physical Properties

Tenacity

Solubility

Partially soluble in water

Durability

Specific Gravity

1.775.5

1 7.18

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Fracture

Conchoidal

Cleavage

Perfect on {10 1 0}

{111} Indistinct, {111} Indistinct, {111} Indistinct

Mohs Hardness

2-2.55-5.5

2 10

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Chemical Composition

Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

(Ca,Na) 2Ta 2O 6(O,OH,F)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Ettringite and Microlite Chemical Formula

While comparing Ettringite and Microlite 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 Microlite chemical formula.

Chemical formula of Ettringite- Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Microlite- (Ca,Na) 2Ta 2O 6(O,OH,F)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Ettringite and Microlite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ettringite and Microlite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ettringite and Microlite Optical Properties during the identification of gemstone. Specific gravity of Ettringite is 5.5 whereas that of Microlite is 5.5.