Plumbogummite and Sinhalite Physical Properties

Plumbogummite

Sinhalite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4.0143.46-3.50

1 7.18

1.5 Fracture

Uneven, Conchoidal

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle

1.6 Cleavage

None

Not Available

1.7 Mohs Hardness

4-56-7

2 10

1.8 Chemical Composition

Not Available

MgAlBO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Plumbogummite and Sinhalite Chemical Formula

While comparing Plumbogummite and Sinhalite 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 Sinhalite chemical formula.

Chemical formula of Sinhalite- MgAlBO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Plumbogummite and Sinhalite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Plumbogummite and Sinhalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Plumbogummite and Sinhalite Optical Properties during the identification of gemstone. Specific gravity of Plumbogummite is 3.46-3.50 whereas that of Sinhalite is 3.46-3.50.