Augite and Galena Physical Properties

Augite

Galena

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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

3.19-3.566.23

1 7.18

1.5 Fracture

Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal

Subconchoidal, Brittle, Metallic

1.6 Cleavage

{110} Perfect, {010} Indistinct

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

1.7 Mohs Hardness

5.5-62.5-2.75

2 10

1.8 Chemical Composition

(Ca,Na)(Mg,Fe,Al,Ti)(Si,Al) 2O 6Anthony et al , Handbook of mineralogy (2001)

PbS

Augite and Galena Chemical Formula

While comparing Augite and Galena 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 Augite and Galena chemical formula.

Chemical formula of Augite- (Ca,Na)(Mg,Fe,Al,Ti)(Si,Al) 2O 6Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Galena- PbS

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Augite and Galena Specific Gravity

Another important criteria for qualitative analysis of gemstones is Augite and Galena Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Augite and Galena Optical Properties during the identification of gemstone. Specific gravity of Augite is 6.23 whereas that of Galena is 6.23.