Chrome-Chalcedony and Amethyst Physical Properties

Chrome-Chalcedony

Amethyst

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

insoluble in common solvents

1.3 Durability

Not Available

1.4 Specific Gravity

2.55-2.702.65

1 7.18

1.5 Fracture

Not Available

Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)

1.6 Cleavage

Not Available

Indiscernible

1.7 Mohs Hardness

6.5-77

2 10

1.8 Chemical Composition

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

SiO₂

Chrome-Chalcedony and Amethyst Chemical Formula

While comparing Chrome-Chalcedony and Amethyst 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 Amethyst chemical formula.

Chemical formula of Chrome-Chalcedony- SiO 2 (with trace Cr minerals) Gemdat.org , Management Team (2012)
Chemical formula of Amethyst- SiO₂

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Chrome-Chalcedony and Amethyst Specific Gravity

Another important criteria for qualitative analysis of gemstones is Chrome-Chalcedony and Amethyst Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chrome-Chalcedony and Amethyst Optical Properties during the identification of gemstone. Specific gravity of Chrome-Chalcedony is 2.65 whereas that of Amethyst is 2.65.