Vishnevite and Chalcedony Physical Properties

Vishnevite

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

Not Available2.55-2.70

1 7.18

1.5 Fracture

Brittle, Uneven

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

1.6 Cleavage

Perfect

Absent

1.7 Mohs Hardness

5-66.5-7

2 10

1.8 Chemical Composition

Not Available

SiO₂

Vishnevite and Chalcedony Chemical Formula

While comparing Vishnevite 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 Vishnevite and Chalcedony chemical formula.

Chemical formula of Chalcedony- SiO₂

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Vishnevite and Chalcedony Specific Gravity

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