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Plumbogummite
Plumbogummite

Corundum
Corundum



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Plumbogummite
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Corundum

Plumbogummite and Corundum Physical Properties

1 Physical Properties
1.1 Tenacity
Brittle
Brittle
1.2 Solubility
Soluble
insoluble
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
4.0143.90-4.05
Amber
1 7.18
1.5 Fracture
Uneven, Conchoidal
Uneven, Uneven, Gems, Difficult, Fibrous
1.6 Cleavage
None
None – parting in 3 directions
1.7 Mohs Hardness
4-59
Amber
2 10
1.8 Chemical Composition
Not Available
Al 2O 3Arthur Thomas , Gemstones (2009)

Plumbogummite and Corundum Chemical Formula

While comparing Plumbogummite and Corundum 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 Plumbogummite and Corundum chemical formula.

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  • Chemical formula of Corundum- Al 2O 3Arthur Thomas , Gemstones (2009)

Plumbogummite and Corundum Specific Gravity

Another important criteria for qualitative analysis of gemstones is Plumbogummite and Corundum Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Plumbogummite and Corundum Optical Properties during the identification of gemstone. Specific gravity of Plumbogummite is 3.90-4.05 whereas that of Corundum is 3.90-4.05.