Jade and Bustamite Physical Properties

Jade

Bustamite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

Partly soluble in HCl.

1.3 Durability

Not Available

1.4 Specific Gravity

2.90-3.383.32-3.43

1 7.18

1.5 Fracture

Gemstones of the world (2001), Difficult, Splintery

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

1 or 2,2 prismatic.

{100} perfect; {110} and {1 1 0} good; {010} poor

1.7 Mohs Hardness

6-75.5-6

2 10

1.8 Chemical Composition

Nephrite: Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂ Jadeite: NaAlSi₂O₆

(Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Jade and Bustamite Chemical Formula

While comparing Jade and Bustamite 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 Jade and Bustamite chemical formula.

Chemical formula of Jade- Nephrite: Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂ Jadeite: NaAlSi₂O₆
Chemical formula of Bustamite- (Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Jade and Bustamite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Jade and Bustamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Jade and Bustamite Optical Properties during the identification of gemstone. Specific gravity of Jade is 3.32-3.43 whereas that of Bustamite is 3.32-3.43.