Danburite and Labradorite Physical Properties

Danburite

Labradorite

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

2.97-3.032.69-2.72

1 7.18

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Fracture

Uneven, ConchoidalWalter Schumann, Conchoidal

Uneven, Conchoidal

Cleavage

{001} Poor

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

Mohs Hardness

76-6.5

2 10

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Chemical Composition

CaB 2(SiO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

(Na,Ca)_1-2Si_3-2O₈

Danburite and Labradorite Chemical Formula

While comparing Danburite 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 Danburite and Labradorite chemical formula.

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

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Danburite and Labradorite Specific Gravity

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