Anglesite and Biotite Physical Properties

Anglesite

Biotite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

6.30-6.392.7-3.3

1 7.18

1.5 Fracture

Conchoidal, Brittle, Conchoidal, Brittle, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal

Uneven, Even, Yellow, White

1.6 Cleavage

[001] good, [210] distinct

Perfect on the {001}

1.7 Mohs Hardness

3-3.52.5-3.0

2 10

1.8 Chemical Composition

PbSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

K(Mg,Fe++)3[AlSi3O10(OH,F)2

Anglesite and Biotite Chemical Formula

While comparing Anglesite and Biotite 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 Anglesite and Biotite chemical formula.

Chemical formula of Anglesite- PbSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Chemical formula of Biotite- K(Mg,Fe++)3[AlSi3O10(OH,F)2

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Anglesite and Biotite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Anglesite and Biotite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Anglesite and Biotite Optical Properties during the identification of gemstone. Specific gravity of Anglesite is 2.7-3.3 whereas that of Biotite is 2.7-3.3.