Rosasite and Andradite Physical Properties

Rosasite

Andradite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Effervesces in cold

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4-4.23.70-4.10

1 7.18

1.5 Fracture

Splintery

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

1.6 Cleavage

Perfect on {100} and {010}

none

1.7 Mohs Hardness

46.5-7

2 10

1.8 Chemical Composition

Not Available

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

Rosasite and Andradite Chemical Formula

While comparing Rosasite 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 Rosasite and Andradite chemical formula.

Chemical formula of Andradite- Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

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Rosasite and Andradite Specific Gravity

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