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Star Sapphire
Star Sapphire

Plumbogummite
Plumbogummite



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Star Sapphire
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Plumbogummite

Star Sapphire and Plumbogummite Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Brittle
1.2 Solubility
Not Available
Soluble
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.90-4.05
4.014
1.5 Fracture
Not Available
Uneven, Conchoidal
1.6 Cleavage
Not Available
None
1.7 Mohs Hardness
Not Available
4-5
1.8 Chemical Composition
Al 2O 3Ulrich Henn and Claudio C.
Not Available

Star Sapphire and Plumbogummite Chemical Formula

While comparing Star Sapphire and Plumbogummite 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 Star Sapphire and Plumbogummite chemical formula.

  • Chemical formula of Star Sapphire- Al 2O 3Ulrich Henn and Claudio C.
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Star Sapphire and Plumbogummite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Star Sapphire and Plumbogummite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Star Sapphire and Plumbogummite Optical Properties during the identification of gemstone. Specific gravity of Star Sapphire is 4.014 whereas that of Plumbogummite is 4.014.