Almandine and Prasiolite Physical Properties

Almandine

Prasiolite

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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

3.95-4.30

2.65

1.5 Fracture

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

Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)

1.6 Cleavage

none

3,1

1.7 Mohs Hardness

7-7.5

1.8 Chemical Composition

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

SiO 2Ulrich Henn and Claudio C.

Almandine and Prasiolite Chemical Formula

While comparing Almandine and Prasiolite 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 Prasiolite chemical formula.

Chemical formula of Almandine- Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Chemical formula of Prasiolite- SiO 2Ulrich Henn and Claudio C.

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Almandine and Prasiolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Almandine and Prasiolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Almandine and Prasiolite Optical Properties during the identification of gemstone. Specific gravity of Almandine is 2.65 whereas that of Prasiolite is 2.65.