Labradorite and Sunstone Physical Properties

Labradorite

Sunstone

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.69-2.722.62-2.65

1 7.18

1.5 Fracture

Uneven, Conchoidal, Gems, Sixth Edition (2006)

Gemstones of the world (2001)

1.6 Cleavage

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

001

1.7 Mohs Hardness

6-6.56

2 10

1.8 Chemical Composition

(Na,Ca)_1-2Si_3-2O₈

Microcline: KAlSi₃O₈ Oligoclase: (Na,Ca)Al_1-2Si_3-2O₈

Labradorite and Sunstone Chemical Formula

While comparing Labradorite and Sunstone 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 Sunstone chemical formula.

Chemical formula of Labradorite- (Na,Ca)_1-2Si_3-2O₈
Chemical formula of Sunstone- Microcline: KAlSi₃O₈ Oligoclase: (Na,Ca)Al_1-2Si_3-2O₈

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Labradorite and Sunstone Specific Gravity

Another important criteria for qualitative analysis of gemstones is Labradorite and Sunstone Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Labradorite and Sunstone Optical Properties during the identification of gemstone. Specific gravity of Labradorite is 2.62-2.65 whereas that of Sunstone is 2.62-2.65.