Rossmanite and Variscite Physical Properties

Rossmanite

Variscite

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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

32.42-2.58

1 7.18

1.5 Fracture

Brittle, Metallic

Conchoidal, Splintery, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle

1.6 Cleavage

None

[010] perfect

1.7 Mohs Hardness

Not Available4-5

2 10

1.8 Chemical Composition

◻(LiAl 2)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)

AlPO₄ · 2(H₂O)

Rossmanite and Variscite Chemical Formula

While comparing Rossmanite and Variscite 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 Rossmanite and Variscite chemical formula.

Chemical formula of Rossmanite- ◻(LiAl 2)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Chemical formula of Variscite- AlPO₄ · 2(H₂O)

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Rossmanite and Variscite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Rossmanite and Variscite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rossmanite and Variscite Optical Properties during the identification of gemstone. Specific gravity of Rossmanite is 2.42-2.58 whereas that of Variscite is 2.42-2.58.