Celestine and Labradorite Physical Properties

Celestine

Labradorite

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

3.90-4.002.69-2.72

1 7.18

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Fracture

Conchoidal

Uneven, Conchoidal

Cleavage

Perfect on {001}, good on {210}, poor on {010}

Perfect on {001}, less perfect on {010}, intersecting at near 90°; distinct on {110}

Mohs Hardness

3-3.56-6.5

2 10

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Chemical Composition

SrSO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

(Na,Ca)_1-2Si_3-2O₈

Celestine and Labradorite Chemical Formula

While comparing Celestine and Labradorite 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 Celestine and Labradorite chemical formula.

Chemical formula of Celestine- SrSO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Labradorite- (Na,Ca)_1-2Si_3-2O₈

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Celestine and Labradorite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Celestine and Labradorite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Celestine and Labradorite Optical Properties during the identification of gemstone. Specific gravity of Celestine is 2.69-2.72 whereas that of Labradorite is 2.69-2.72.