Colemanite and Andradite Physical Properties

Colemanite

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

2.40-2.423.70-4.10

1 7.18

1.5 Fracture

Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic

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

1.6 Cleavage

{010} Perfect, {001} Distinct

none

1.7 Mohs Hardness

4.56.5-7

2 10

1.8 Chemical Composition

Ca 2B 6O 11 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Colemanite and Andradite Chemical Formula

While comparing Colemanite 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 Colemanite and Andradite chemical formula.

Chemical formula of Colemanite- Ca 2B 6O 11 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Andradite- Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Compare Colorless Gems

Colemanite Vs Datolite

Colemanite Vs Diaspore

Colemanite Vs Cubic Zirconia

Colemanite and Andradite Specific Gravity

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