Zincite and Labradorite Physical Properties

Zincite

Labradorite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

5.50-5.902.69-2.72

1 7.18

1.5 Fracture

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

Uneven, Conchoidal, Gems, Sixth Edition (2006)

1.6 Cleavage

On {10 1 0}, perfect; parting on {000 1 }

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

1.7 Mohs Hardness

46-6.5

2 10

1.8 Chemical Composition

(Zn,Mn2+ )OMichael OâDonoghue , Gems, Sixth Edition (2006)

(Na,Ca)_1-2Si_3-2O₈

Zincite and Labradorite Chemical Formula

While comparing Zincite 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 Zincite and Labradorite chemical formula.

Chemical formula of Zincite- (Zn,Mn2+ )OMichael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Labradorite- (Na,Ca)_1-2Si_3-2O₈

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Zincite and Labradorite Specific Gravity

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