Willemite and Andradite Garnet Physical Properties

Willemite

Andradite Garnet

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.89-4.183.8-3.9

1 7.18

1.5 Fracture

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Uneven

Not Available

1.6 Cleavage

{0001}, {11 2 0} imperfect

None

1.7 Mohs Hardness

5.56.5-7.5

2 10

1.8 Chemical Composition

Zn 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Ca₃Fe³⁺₂Si₃O₁₂

Willemite and Andradite Garnet Chemical Formula

While comparing Willemite and Andradite Garnet 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 Willemite and Andradite Garnet chemical formula.

Chemical formula of Willemite- Zn 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Andradite Garnet- Ca₃Fe³⁺₂Si₃O₁₂

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Willemite and Andradite Garnet Specific Gravity

Another important criteria for qualitative analysis of gemstones is Willemite and Andradite Garnet Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Willemite and Andradite Garnet Optical Properties during the identification of gemstone. Specific gravity of Willemite is 3.8-3.9 whereas that of Andradite Garnet is 3.8-3.9.