Grandidierite and Scolecite Physical Properties

Grandidierite

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

2.85-3.002.20-2.23

1 7.18

1.5 Fracture

Brittle, UnevenArthur Thomas, Gemstones (2009), Brittle, Uneven

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

1.6 Cleavage

Perfect

Perfect on {110} and {1 1 0}

1.7 Mohs Hardness

7.55-5.5

2 10

1.8 Chemical Composition

(Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.

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

Grandidierite and Scolecite Chemical Formula

While comparing Grandidierite 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 Grandidierite and Scolecite chemical formula.

Chemical formula of Grandidierite- (Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.
Chemical formula of Scolecite- CaAl 2Si 3O 10 · 3H 2OUlrich Henn and Claudio C.

Compare Green Gemstones

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Grandidierite and Scolecite Specific Gravity

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