Chondrodite and Achroite Physical Properties

Chondrodite

Achroite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.10-3.202.90-3.40

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

Poor to good on (001)

Not Available

1.7 Mohs Hardness

6-6.57-7.5

2 10

1.8 Chemical Composition

(Mg,Fe) 5(SiO 4) 2(F,OH) 2Ulrich 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.

Chondrodite and Achroite Chemical Formula

While comparing Chondrodite 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 Chondrodite and Achroite chemical formula.

Chemical formula of Chondrodite- (Mg,Fe) 5(SiO 4) 2(F,OH) 2Ulrich 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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Chondrodite and Achroite Specific Gravity

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