Bustamite and Danburite Physical Properties

Bustamite

Danburite

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Physical Properties

Tenacity

Brittle

Solubility

Partly soluble in HCl.

Durability

Specific Gravity

3.32-3.432.97-3.03

1 7.18

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Fracture

Conchoidal

Uneven, ConchoidalWalter Schumann, Conchoidal

Cleavage

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

{001} Poor

Mohs Hardness

5.5-67

2 10

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Chemical Composition

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

CaB 2(SiO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Bustamite and Danburite Chemical Formula

While comparing Bustamite and Danburite 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 Bustamite and Danburite chemical formula.

Chemical formula of Bustamite- (Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Danburite- CaB 2(SiO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Red Gemstones

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Bustamite and Danburite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Bustamite and Danburite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bustamite and Danburite Optical Properties during the identification of gemstone. Specific gravity of Bustamite is 2.97-3.03 whereas that of Danburite is 2.97-3.03.