Jadeite and Almandine Physical Properties

Jadeite

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

3.28-3.383.95-4.30

1 7.18

1.5 Fracture

Splintery, UnevenArthur Thomas, Difficult, Fibrous

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

1.6 Cleavage

Good on [110]

none

1.7 Mohs Hardness

6.5-77-7.5

2 10

1.8 Chemical Composition

NaAlSi 2O 6Ulrich Henn and Claudio C.

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

Jadeite and Almandine Chemical Formula

While comparing Jadeite 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 Jadeite and Almandine chemical formula.

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

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Jadeite and Almandine Specific Gravity

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