Microlite and Riebeckite Physical Properties

Microlite

Riebeckite

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

5.53.28-3.44

1 7.18

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Fracture

Conchoidal

Uneven, Splintery

Cleavage

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

Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}

Mohs Hardness

5-5.55.0-6.0

2 10

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Chemical Composition

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

Na2Fe2+3Fe3+2Si8O22(OH)2

Microlite and Riebeckite Chemical Formula

While comparing Microlite and Riebeckite 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 Microlite and Riebeckite chemical formula.

Chemical formula of Microlite- (Ca,Na) 2Ta 2O 6(O,OH,F)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Riebeckite- Na2Fe2+3Fe3+2Si8O22(OH)2

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Microlite and Riebeckite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Microlite and Riebeckite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Microlite and Riebeckite Optical Properties during the identification of gemstone. Specific gravity of Microlite is 3.28-3.44 whereas that of Riebeckite is 3.28-3.44.