Almandine and Scolecite Physical Properties

Almandine

Scolecite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.95-4.302.20-2.23

1 7.18

1.5 Fracture

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

Irregular/uneven, UnevenAnthony et al, Handbook of mineralogy (2001), Brittle, Uneven

1.6 Cleavage

none

Perfect on {110} and {1 1 0}

1.7 Mohs Hardness

7-7.55-5.5

2 10

1.8 Chemical Composition

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

CaAl 2Si 3O 10 · 3H 2OUlrich Henn and Claudio C.

Almandine and Scolecite Chemical Formula

While comparing Almandine and Scolecite 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 Scolecite chemical formula.

Chemical formula of Almandine- Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Chemical formula of Scolecite- CaAl 2Si 3O 10 · 3H 2OUlrich Henn and Claudio C.

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Almandine and Scolecite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Almandine and Scolecite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Almandine and Scolecite Optical Properties during the identification of gemstone. Specific gravity of Almandine is 2.20-2.23 whereas that of Scolecite is 2.20-2.23.