Starlite and Plumbogummite Physical Properties

Starlite

Plumbogummite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.91-4.734.014

1 7.18

1.5 Fracture

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

Uneven, Conchoidal

1.6 Cleavage

Not Available

None

1.7 Mohs Hardness

6.5-7.54-5

2 10

1.8 Chemical Composition

ZrSiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)

Not Available

Starlite and Plumbogummite Chemical Formula

While comparing Starlite 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 Starlite and Plumbogummite chemical formula.

Chemical formula of Starlite- ZrSiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)

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Starlite and Plumbogummite Specific Gravity

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