Andradite and Smithsonite Physical Properties

Andradite

Smithsonite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.70-4.104.00-4.65

1 7.18

1.5 Fracture

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

Uneven, Sub-Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Metallic

1.6 Cleavage

none

Perfect on [1011]

1.7 Mohs Hardness

6.5-75-5.5

2 10

1.8 Chemical Composition

Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

ZnCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Andradite and Smithsonite Chemical Formula

While comparing Andradite and Smithsonite 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 Andradite and Smithsonite chemical formula.

Chemical formula of Andradite- Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Chemical formula of Smithsonite- ZnCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Andradite and Smithsonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Andradite and Smithsonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Andradite and Smithsonite Optical Properties during the identification of gemstone. Specific gravity of Andradite is 4.00-4.65 whereas that of Smithsonite is 4.00-4.65.