Labradorite and Chalcedony Physical Properties

Labradorite

Chalcedony

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.69-2.72

2.55-2.70

1.5 Fracture

Uneven, Conchoidal, Gems, Sixth Edition (2006)

Uneven, Splintery, Conchoidal, Uneven, Splintery, Conchoidal, UnevenWalter Schumann

1.6 Cleavage

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

Absent

1.7 Mohs Hardness

6-6.5

6.5-7

1.8 Chemical Composition

(Na,Ca)_1-2Si_3-2O₈

SiO₂

Labradorite and Chalcedony Chemical Formula

While comparing Labradorite and Chalcedony 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 Chalcedony chemical formula.

Chemical formula of Labradorite- (Na,Ca)_1-2Si_3-2O₈
Chemical formula of Chalcedony- SiO₂

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Labradorite and Chalcedony Specific Gravity

Another important criteria for qualitative analysis of gemstones is Labradorite and Chalcedony Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Labradorite and Chalcedony Optical Properties during the identification of gemstone. Specific gravity of Labradorite is 2.55-2.70 whereas that of Chalcedony is 2.55-2.70.