Hackmanite and Labradorite Physical Properties

Hackmanite

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

2.27-2.33

2.69-2.72

1.5 Fracture

UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)

Uneven, Conchoidal, Gems, Sixth Edition (2006)

1.6 Cleavage

Not Available

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

1.7 Mohs Hardness

5.5-6

6-6.5

1.8 Chemical Composition

Na 8Al 6Si 6O 24Cl 2Michael OâDonoghue , Gems, Sixth Edition (2006)

(Na,Ca)_1-2Si_3-2O₈

Hackmanite and Labradorite Chemical Formula

While comparing Hackmanite 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 Hackmanite and Labradorite chemical formula.

Chemical formula of Hackmanite- Na 8Al 6Si 6O 24Cl 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Labradorite- (Na,Ca)_1-2Si_3-2O₈

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Hackmanite and Labradorite Specific Gravity

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