Chrome-Chalcedony and Bertrandite Physical Properties

Chrome-Chalcedony

Bertrandite

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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

2.55-2.702.59-2.60

1 7.18

1.5 Fracture

Not Available

Brittle, Metallic, Brittle, Metallic

1.6 Cleavage

Not Available

{001} Perfect, {110} Distinct, {101} Distinct

1.7 Mohs Hardness

6.5-76-7

2 10

1.8 Chemical Composition

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

Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)

Chrome-Chalcedony and Bertrandite Chemical Formula

While comparing Chrome-Chalcedony and Bertrandite 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 Bertrandite chemical formula.

Chemical formula of Chrome-Chalcedony- SiO 2 (with trace Cr minerals) Gemdat.org , Management Team (2012)
Chemical formula of Bertrandite- Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)

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Chrome-Chalcedony and Bertrandite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Chrome-Chalcedony and Bertrandite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chrome-Chalcedony and Bertrandite Optical Properties during the identification of gemstone. Specific gravity of Chrome-Chalcedony is 2.59-2.60 whereas that of Bertrandite is 2.59-2.60.