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Galena and Sapphire Physical Properties


Sapphire and Galena Physical Properties


Physical Properties

Tenacity
Brittle   
Not Available   

Solubility
Not Available   
insoluble   

Durability
Not Available   
Not Available   

Specific Gravity
6.23   
3.95-4.03   

Fracture
Subconchoidal, Brittle, Metallic   
Uneven, Uneven, Gems, Sixth Edition (2006)   

Cleavage
Cubic perfect on [001], parting on [111]   
None, but may exhibit parting   

Mohs Hardness
2.5-2.75   
9   

Chemical Composition
PbS   
Al 2 O 3   

Optical Properties >>
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Galena and Sapphire Chemical Formula

While comparing Galena and Sapphire 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 Sapphire chemical formula.

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Galena and Sapphire Specific Gravity

Another important criteria for qualitative analysis of gemstones is Galena and Sapphire Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Galena and Sapphire Optical Properties during the identification of gemstone. Specific gravity of Galena is 3.95-4.03 whereas that of Sapphire is 3.95-4.03.

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Grey Gemstones


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