Arfvedsonite and Danburite Physical Properties

Arfvedsonite

Danburite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.3-3.52.97-3.03

1 7.18

1.5 Fracture

Uneven, Brittle, Metallic, Brittle, Metallic

Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle

1.6 Cleavage

Perfect on [110]

{001} Poor

1.7 Mohs Hardness

5-67

2 10

1.8 Chemical Composition

NaNa2(Fe++4Fe+++)Si8O22(OH)2

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

Arfvedsonite and Danburite Chemical Formula

While comparing Arfvedsonite 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 Arfvedsonite and Danburite chemical formula.

Chemical formula of Arfvedsonite- NaNa2(Fe++4Fe+++)Si8O22(OH)2
Chemical formula of Danburite- CaB 2(SiO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Arfvedsonite and Danburite Specific Gravity

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