Dravite and Jadeite Physical Properties

Dravite

Jadeite

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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

3.03-3.183.28-3.38

1 7.18

1.5 Fracture

Uneven, Uneven, Irregular, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle

Splintery, UnevenArthur Thomas, Difficult, Fibrous

1.6 Cleavage

{???} Indistinct

Good on [110]

1.7 Mohs Hardness

7-7.56.5-7

2 10

1.8 Chemical Composition

Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)

NaAlSi 2O 6Ulrich Henn and Claudio C.

Dravite and Jadeite Chemical Formula

While comparing Dravite and Jadeite 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 Dravite and Jadeite chemical formula.

Chemical formula of Dravite- Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Chemical formula of Jadeite- NaAlSi 2O 6Ulrich Henn and Claudio C.

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Dravite and Jadeite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Dravite and Jadeite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Dravite and Jadeite Optical Properties during the identification of gemstone. Specific gravity of Dravite is 3.28-3.38 whereas that of Jadeite is 3.28-3.38.