Andradite and Chrome-Chalcedony Physical Properties

Andradite

Chrome-Chalcedony

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.70-4.102.55-2.70

1 7.18

1.5 Fracture

Conchoidal, Uneven, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009)

Not Available

1.6 Cleavage

none

Not Available

1.7 Mohs Hardness

6.5-76.5-7

2 10

1.8 Chemical Composition

Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

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

Andradite and Chrome-Chalcedony Chemical Formula

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

Chemical formula of Andradite- Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Chemical formula of Chrome-Chalcedony- SiO 2 (with trace Cr minerals) Gemdat.org , Management Team (2012)

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Andradite and Chrome-Chalcedony Specific Gravity

Another important criteria for qualitative analysis of gemstones is Andradite and Chrome-Chalcedony Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Andradite and Chrome-Chalcedony Optical Properties during the identification of gemstone. Specific gravity of Andradite is 2.55-2.70 whereas that of Chrome-Chalcedony is 2.55-2.70.