Labradorite and Phenakite Physical Properties

Labradorite

Phenakite

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

2.69-2.722.90-2.98

1 7.18

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Fracture

Uneven, Conchoidal

Conchoidal, ConchoidalWalter Schumann

Cleavage

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

Distinct on {11 2 0}, imperfect on {10 1 1}

Mohs Hardness

6-6.57.5-8

2 10

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Chemical Composition

(Na,Ca)_1-2Si_3-2O₈

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

Labradorite and Phenakite Chemical Formula

While comparing Labradorite and Phenakite 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 Labradorite and Phenakite chemical formula.

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

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Labradorite and Phenakite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Labradorite and Phenakite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Labradorite and Phenakite Optical Properties during the identification of gemstone. Specific gravity of Labradorite is 2.90-2.98 whereas that of Phenakite is 2.90-2.98.