Labradorite and Emerald Physical Properties

Labradorite

Emerald

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

Hard

1.4 Specific Gravity

2.69-2.72

2.67-2.78

1.5 Fracture

Uneven, Conchoidal, Gems, Sixth Edition (2006)

Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)

1.6 Cleavage

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

Imperfect on the [0001]

1.7 Mohs Hardness

6-6.5

7.5-8

1.8 Chemical Composition

(Na,Ca)_1-2Si_3-2O₈

Be₃Al₂SiO₆

Labradorite and Emerald Chemical Formula

While comparing Labradorite and Emerald 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 Emerald chemical formula.

Chemical formula of Labradorite- (Na,Ca)_1-2Si_3-2O₈
Chemical formula of Emerald- Be₃Al₂SiO₆

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Labradorite and Emerald Specific Gravity

Another important criteria for qualitative analysis of gemstones is Labradorite and Emerald Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Labradorite and Emerald Optical Properties during the identification of gemstone. Specific gravity of Labradorite is 2.67-2.78 whereas that of Emerald is 2.67-2.78.