Almandine and Chrysoprase Physical Properties

Almandine

Chrysoprase

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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

3.95-4.30

2.58-2.64

1.5 Fracture

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

Gems, Sixth Edition (2006)

1.6 Cleavage

none

None

1.7 Mohs Hardness

7-7.5

6.5-7

1.8 Chemical Composition

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

SiO₂ (with a high level of nickel impurities )

Almandine and Chrysoprase Chemical Formula

While comparing Almandine and Chrysoprase 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 Almandine and Chrysoprase chemical formula.

Chemical formula of Almandine- Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Chemical formula of Chrysoprase- SiO₂ (with a high level of nickel impurities )

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Almandine and Chrysoprase Specific Gravity

Another important criteria for qualitative analysis of gemstones is Almandine and Chrysoprase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Almandine and Chrysoprase Optical Properties during the identification of gemstone. Specific gravity of Almandine is 2.58-2.64 whereas that of Chrysoprase is 2.58-2.64.