Almandine and Jadeite Physical Properties

Almandine

Jadeite

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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

3.95-4.303.28-3.38

1 7.18

1.5 Fracture

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

Splintery, UnevenArthur Thomas, Difficult, Fibrous

1.6 Cleavage

none

Good on [110]

1.7 Mohs Hardness

7-7.56.5-7

2 10

1.8 Chemical Composition

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

NaAlSi 2O 6Ulrich Henn and Claudio C.

Almandine and Jadeite Chemical Formula

While comparing Almandine and Jadeite 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 Jadeite chemical formula.

Chemical formula of Almandine- Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Chemical formula of Jadeite- NaAlSi 2O 6Ulrich Henn and Claudio C.

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Almandine and Jadeite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Almandine and Jadeite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Almandine and Jadeite Optical Properties during the identification of gemstone. Specific gravity of Almandine is 3.28-3.38 whereas that of Jadeite is 3.28-3.38.