Jadeite and Achroite Physical Properties

Jadeite

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

3.28-3.382.90-3.40

1 7.18

1.5 Fracture

Splintery, UnevenArthur Thomas, Difficult, Fibrous

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

1.6 Cleavage

Good on [110]

Not Available

1.7 Mohs Hardness

6.5-77-7.5

2 10

1.8 Chemical Composition

NaAlSi 2O 6Ulrich 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.

Jadeite and Achroite Chemical Formula

While comparing Jadeite 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 Jadeite and Achroite chemical formula.

Chemical formula of Jadeite- NaAlSi 2O 6Ulrich 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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Jadeite and Achroite Specific Gravity

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