Legrandite and Andradite Garnet Physical Properties

Legrandite

Andradite Garnet

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.98-4.043.8-3.9

1 7.18

1.5 Fracture

Conchoidal, UnevenArthur Thomas, Gemstones (2009), Brittle

Not Available

1.6 Cleavage

Imperfect, poor one {100}

None

1.7 Mohs Hardness

4.5-56.5-7.5

2 10

1.8 Chemical Composition

Zn 2(AsO 4)(OH) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Ca₃Fe³⁺₂Si₃O₁₂

Legrandite and Andradite Garnet Chemical Formula

While comparing Legrandite 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 Legrandite and Andradite Garnet chemical formula.

Chemical formula of Legrandite- Zn 2(AsO 4)(OH) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Andradite Garnet- Ca₃Fe³⁺₂Si₃O₁₂

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Legrandite and Andradite Garnet Specific Gravity

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