Danburite and Afghanite Physical Properties

Danburite

Afghanite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

Brittle

2.97-3.03

Uneven, ConchoidalWalter Schumann, Conchoidal

{001} Poor

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

2.55-2.65

Conchoidal

Perfect {10 1 0}

5.5-6

(Na,Ca,K) 8(Si,Al) 12O 24(SO 4,Cl,CO 3) 3(H 2O)Arthur Thomas , Gemstones (2009)

Danburite and Afghanite Chemical Formula

While comparing Danburite and Afghanite 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 Danburite and Afghanite chemical formula.

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Danburite and Afghanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Danburite and Afghanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Danburite Vs Afghanite during the identification of gemstone. Specific gravity of Danburite is whereas that of Afghanite is .