Labradorite and Sphalerite Physical Properties

Labradorite

Sphalerite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

2.69-2.723.95-4.10

1 7.18

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Fracture

Uneven, Conchoidal

Uneven

Cleavage

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

{110} Perfect, {110} Perfect, {110} Perfect

Mohs Hardness

6-6.53.5-4

2 10

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Chemical Composition

(Na,Ca)_1-2Si_3-2O₈

(Zn,Fe)SMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Labradorite and Sphalerite Chemical Formula

While comparing Labradorite and Sphalerite 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 Sphalerite chemical formula.

Chemical formula of Labradorite- (Na,Ca)_1-2Si_3-2O₈
Chemical formula of Sphalerite- (Zn,Fe)SMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Labradorite and Sphalerite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Labradorite and Sphalerite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Labradorite and Sphalerite Optical Properties during the identification of gemstone. Specific gravity of Labradorite is 3.95-4.10 whereas that of Sphalerite is 3.95-4.10.