Biotite and Azurmalachite Physical Properties

Biotite

Azurmalachite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.7-3.33.70-3.95

1 7.18

1.5 Fracture

Uneven, Even, Yellow, White

ConchoidalGemdat.org, Management Team (2012), ConchoidalGemdat.org, Management Team (2012)

1.6 Cleavage

Perfect on the {001}

1,1 basal.

1.7 Mohs Hardness

2.5-3.03.5-4

2 10

1.8 Chemical Composition

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

(Cu) 3(OH) 2(CO 3) 2 + Cu 2(CO 3)(OH) 2Gemdat.org , Management Team (2012)

Biotite and Azurmalachite Chemical Formula

While comparing Biotite and Azurmalachite 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 Biotite and Azurmalachite chemical formula.

Chemical formula of Biotite- K(Mg,Fe++)3[AlSi3O10(OH,F)2
Chemical formula of Azurmalachite- (Cu) 3(OH) 2(CO 3) 2 + Cu 2(CO 3)(OH) 2Gemdat.org , Management Team (2012)

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Biotite and Azurmalachite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Biotite and Azurmalachite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Biotite and Azurmalachite Optical Properties during the identification of gemstone. Specific gravity of Biotite is 3.70-3.95 whereas that of Azurmalachite is 3.70-3.95.