Andradite and Gaspeite Physical Properties

Andradite

Gaspeite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

HCl soluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.70-4.103.71

1 7.18

1.5 Fracture

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

Uneven

1.6 Cleavage

none

{10 1 1} Good

1.7 Mohs Hardness

6.5-74.5-5

2 10

1.8 Chemical Composition

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

(Ni,Mg,Fe++)CO3

Andradite and Gaspeite Chemical Formula

While comparing Andradite and Gaspeite 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 Andradite and Gaspeite chemical formula.

Chemical formula of Andradite- Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Chemical formula of Gaspeite- (Ni,Mg,Fe++)CO3

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Andradite and Gaspeite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Andradite and Gaspeite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Andradite and Gaspeite Optical Properties during the identification of gemstone. Specific gravity of Andradite is 3.71 whereas that of Gaspeite is 3.71.