Thomsonite and Omphacite Physical Properties

Thomsonite

Omphacite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

2.25-2.403.16-3.43

1 7.18

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Fracture

Uneven, Conchoidal

Cleavage

perfect on {010}; good on {100}

{110} Good, {110} Good

Mohs Hardness

5-5.55-6

2 10

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Chemical Composition

NaCa 2Al 5Si 5O 20 · 6H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

(Ca,Na)(Mg,Fe,Al)Si 2O 6Anthony et al , Handbook of Mineralogy (2001)

Thomsonite and Omphacite Chemical Formula

While comparing Thomsonite and Omphacite 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 Thomsonite and Omphacite chemical formula.

Chemical formula of Thomsonite- NaCa 2Al 5Si 5O 20 · 6H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Omphacite- (Ca,Na)(Mg,Fe,Al)Si 2O 6Anthony et al , Handbook of Mineralogy (2001)

Compare White Gemstones

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Thomsonite and Omphacite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Thomsonite and Omphacite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Thomsonite and Omphacite Optical Properties during the identification of gemstone. Specific gravity of Thomsonite is 3.16-3.43 whereas that of Omphacite is 3.16-3.43.