Andradite and Scolecite Physical Properties

Andradite

Scolecite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.70-4.102.20-2.23

1 7.18

1.5 Fracture

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

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

6.5-75-5.5

2 10

1.8 Chemical Composition

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

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

Andradite and Scolecite Chemical Formula

While comparing Andradite 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 Andradite and Scolecite chemical formula.

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

Compare Green Gemstones

Andradite Vs Augite

Andradite Vs Astrophyllite

Andradite Vs Aragonite

Andradite and Scolecite Specific Gravity

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