Chrysoprase and Spinel Physical Properties

Chrysoprase

Spinel

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

none

1.3 Durability

Not Available

1.4 Specific Gravity

2.58-2.643.64-3.66

1 7.18

1.5 Fracture

Gems, Sixth Edition (2006)

Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

None

None, but may exhibit slight parting

1.7 Mohs Hardness

6.5-78

2 10

1.8 Chemical Composition

SiO₂ (with a high level of nickel impurities )

MgAl₂O₄

Chrysoprase and Spinel Chemical Formula

While comparing Chrysoprase and Spinel 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 Chrysoprase and Spinel chemical formula.

Chemical formula of Chrysoprase- SiO₂ (with a high level of nickel impurities )
Chemical formula of Spinel- MgAl₂O₄

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Chrysoprase and Spinel Specific Gravity

Another important criteria for qualitative analysis of gemstones is Chrysoprase and Spinel Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chrysoprase and Spinel Optical Properties during the identification of gemstone. Specific gravity of Chrysoprase is 3.64-3.66 whereas that of Spinel is 3.64-3.66.