Sunstone and Labradorite Physical Properties

Sunstone

Labradorite

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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

2.62-2.652.69-2.72

1 7.18

1.5 Fracture

Gemstones of the world (2001)

Uneven, Conchoidal, Gems, Sixth Edition (2006)

1.6 Cleavage

001

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

1.7 Mohs Hardness

66-6.5

2 10

1.8 Chemical Composition

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

(Na,Ca)_1-2Si_3-2O₈

Sunstone and Labradorite Chemical Formula

While comparing Sunstone 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 Sunstone and Labradorite chemical formula.

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

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Sunstone and Labradorite Specific Gravity

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