Vishnevite and Schorl Physical Properties

Vishnevite

Schorl

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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

Not Available3.18-3.22

1 7.18

1.5 Fracture

Brittle, Uneven

Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal

1.6 Cleavage

Perfect

{1011} Indistinct

1.7 Mohs Hardness

5-6Not Available

2 10

1.8 Chemical Composition

Not Available

Na(Fe2+3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)

Vishnevite and Schorl Chemical Formula

While comparing Vishnevite and Schorl 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 Schorl chemical formula.

Chemical formula of Schorl- Na(Fe2+3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)

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Vishnevite and Schorl Specific Gravity

Another important criteria for qualitative analysis of gemstones is Vishnevite and Schorl Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Vishnevite and Schorl Optical Properties during the identification of gemstone. Specific gravity of Vishnevite is 3.18-3.22 whereas that of Schorl is 3.18-3.22.