Galena and Kyanite Physical Properties

Galena

Kyanite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

6.233.53-3.65

1 7.18

1.5 Fracture

Subconchoidal, Brittle, Metallic

Splintery, Brittle, Metallic

1.6 Cleavage

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

[100] perfect [010] imperfect with 79° angle between

1.7 Mohs Hardness

2.5-2.754-7

2 10

1.8 Chemical Composition

PbS

Not Available

Galena and Kyanite Chemical Formula

While comparing Galena and Kyanite 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 Kyanite chemical formula.

Chemical formula of Galena- PbS

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Galena and Kyanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Galena and Kyanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Galena and Kyanite Optical Properties during the identification of gemstone. Specific gravity of Galena is 3.53-3.65 whereas that of Kyanite is 3.53-3.65.