Labradorite and Lazulite Physical Properties

Labradorite

Lazulite

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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

2.69-2.723.04-3.17

1 7.18

1.5 Fracture

Uneven, Conchoidal, Gems, Sixth Edition (2006)

Uneven, Uneven, Gemstones of the world (2001) More from other references

1.6 Cleavage

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

{001} Indistinct, {???} Indistinct

1.7 Mohs Hardness

6-6.55.5

2 10

1.8 Chemical Composition

(Na,Ca)_1-2Si_3-2O₈

(Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references

Labradorite and Lazulite Chemical Formula

While comparing Labradorite and Lazulite 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 Lazulite chemical formula.

Chemical formula of Labradorite- (Na,Ca)_1-2Si_3-2O₈
Chemical formula of Lazulite- (Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references

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Labradorite and Lazulite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Labradorite and Lazulite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Labradorite and Lazulite Optical Properties during the identification of gemstone. Specific gravity of Labradorite is 3.04-3.17 whereas that of Lazulite is 3.04-3.17.