Galena and Azurmalachite Physical Properties

Galena

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

6.23

3.70-3.95

1.5 Fracture

Subconchoidal, Brittle, Metallic

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

1.6 Cleavage

Cubic perfect on [001], parting on [111]

1,1 basal.

1.7 Mohs Hardness

2.5-2.75

3.5-4

1.8 Chemical Composition

PbS

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

Galena and Azurmalachite Chemical Formula

While comparing Galena 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 Galena and Azurmalachite chemical formula.

Chemical formula of Galena- PbS
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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Galena and Azurmalachite Specific Gravity

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