Almandine and Gaspeite Physical Properties

Almandine

Gaspeite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

HCl soluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.95-4.30

3.71

1.5 Fracture

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

Uneven

1.6 Cleavage

none

{10 1 1} Good

1.7 Mohs Hardness

7-7.5

4.5-5

1.8 Chemical Composition

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

(Ni,Mg,Fe++)CO3

Almandine and Gaspeite Chemical Formula

While comparing Almandine 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 Almandine and Gaspeite chemical formula.

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

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Almandine and Gaspeite Specific Gravity

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