Chrome-Chalcedony and Variscite Physical Properties

Chrome-Chalcedony

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

2.55-2.702.42-2.58

1 7.18

1.5 Fracture

Not Available

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

1.6 Cleavage

Not Available

[010] perfect

1.7 Mohs Hardness

6.5-74-5

2 10

1.8 Chemical Composition

SiO 2 (with trace Cr minerals) Gemdat.org , Management Team (2012)

AlPO₄ · 2(H₂O)

Chrome-Chalcedony and Variscite Chemical Formula

While comparing Chrome-Chalcedony 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 Chrome-Chalcedony and Variscite chemical formula.

Chemical formula of Chrome-Chalcedony- SiO 2 (with trace Cr minerals) Gemdat.org , Management Team (2012)
Chemical formula of Variscite- AlPO₄ · 2(H₂O)

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Chrome-Chalcedony and Variscite Specific Gravity

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