Enstatite and Achroite Physical Properties

Enstatite

Achroite

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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

3.20-3.252.90-3.40

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

Good/distinct on [210]

Not Available

1.7 Mohs Hardness

5.57-7.5

2 10

1.8 Chemical Composition

Mg 2Si 2O 6Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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.

Enstatite and Achroite Chemical Formula

While comparing Enstatite 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 Enstatite and Achroite chemical formula.

Chemical formula of Enstatite- Mg 2Si 2O 6Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
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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Enstatite and Achroite Specific Gravity

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