Verdite and Almandine Physical Properties

Verdite

Almandine

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.80-3.0

3.95-4.30

1.5 Fracture

Not Available

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

1.6 Cleavage

{110} Good

none

1.7 Mohs Hardness

7-7.5

1.8 Chemical Composition

NaFeS2•2(H2O)

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

Verdite and Almandine Chemical Formula

While comparing Verdite and Almandine 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 Verdite and Almandine chemical formula.

Chemical formula of Verdite- NaFeS2•2(H2O)
Chemical formula of Almandine- Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

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Verdite and Almandine Specific Gravity

Another important criteria for qualitative analysis of gemstones is Verdite and Almandine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Verdite and Almandine Optical Properties during the identification of gemstone. Specific gravity of Verdite is 3.95-4.30 whereas that of Almandine is 3.95-4.30.