Elbaite and Andradite Garnet Physical Properties

Elbaite

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

2.90-3.103.8-3.9

1 7.18

1.5 Fracture

Uneven, Conchoidal, Brittle, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle

Not Available

1.6 Cleavage

Poor/indistinct on {1120} and {1011}

None

1.7 Mohs Hardness

76.5-7.5

2 10

1.8 Chemical Composition

Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) More from other references

Ca₃Fe³⁺₂Si₃O₁₂

Elbaite and Andradite Garnet Chemical Formula

While comparing Elbaite 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 Elbaite and Andradite Garnet chemical formula.

Chemical formula of Elbaite- Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) More from other references
Chemical formula of Andradite Garnet- Ca₃Fe³⁺₂Si₃O₁₂

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Elbaite and Andradite Garnet Specific Gravity

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