Uvarovite and Achroite Physical Properties

Uvarovite

Achroite

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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

3.772.90-3.40

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

None

Not Available

1.7 Mohs Hardness

6.5-7.57-7.5

2 10

1.8 Chemical Composition

Ca 3Cr 2(SiO 4) 3Ulrich Henn and Claudio C.

Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.

Uvarovite and Achroite Chemical Formula

While comparing Uvarovite and Achroite 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 Uvarovite and Achroite chemical formula.

Chemical formula of Uvarovite- Ca 3Cr 2(SiO 4) 3Ulrich Henn and Claudio C.
Chemical formula of Achroite- Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.

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Uvarovite and Achroite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Uvarovite and Achroite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Uvarovite and Achroite Optical Properties during the identification of gemstone. Specific gravity of Uvarovite is 2.90-3.40 whereas that of Achroite is 2.90-3.40.