Garnet and Andradite Physical Properties

Garnet

Andradite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.55-4.333.70-4.10

1 7.18

1.5 Fracture

Conchoidal, Uneven

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

1.6 Cleavage

Indistinct

none

1.7 Mohs Hardness

6.5-7.56.5-7

2 10

1.8 Chemical Composition

Garnet is a series of several different minerals with unique chemical formulas.

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

Garnet and Andradite Chemical Formula

While comparing Garnet and Andradite 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 Garnet and Andradite chemical formula.

Chemical formula of Garnet- Garnet is a series of several different minerals with unique chemical formulas.
Chemical formula of Andradite- Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

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Garnet and Andradite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Garnet and Andradite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Garnet and Andradite Optical Properties during the identification of gemstone. Specific gravity of Garnet is 3.70-4.10 whereas that of Andradite is 3.70-4.10.