Phlogopite and Danburite Physical Properties

Phlogopite

Danburite

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1 Physical Properties

1.1 Tenacity

Tough

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.78-2.852.97-3.03

1 7.18

1.5 Fracture

None, Uneven

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

1.6 Cleavage

Perfect basal (001)

{001} Poor

1.7 Mohs Hardness

2-2.57

2 10

1.8 Chemical Composition

Not Available

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

Phlogopite and Danburite Chemical Formula

While comparing Phlogopite 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 Phlogopite and Danburite chemical formula.

Chemical formula of Danburite- CaB 2(SiO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Phlogopite and Danburite Specific Gravity

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