Adamite and Labradorite Physical Properties

Adamite

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

4.32-4.48

2.69-2.72

1.5 Fracture

Uneven, Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Uneven, Subconchoidal, Brittle, Metallic, Brittle, Metallic

Uneven, Conchoidal, Gems, Sixth Edition (2006)

1.6 Cleavage

{101}, good; {010}, poor

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

1.7 Mohs Hardness

3.5

6-6.5

1.8 Chemical Composition

Zn 2(AsO 4)(OH)Michael OâDonoghue , Gems, Sixth edition (2006)

(Na,Ca)_1-2Si_3-2O₈

Adamite and Labradorite Chemical Formula

While comparing Adamite 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 Adamite and Labradorite chemical formula.

Chemical formula of Adamite- Zn 2(AsO 4)(OH)Michael OâDonoghue , Gems, Sixth edition (2006)
Chemical formula of Labradorite- (Na,Ca)_1-2Si_3-2O₈

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Adamite and Labradorite Specific Gravity

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