Brookite and Scolecite Physical Properties

Brookite

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

3.87-4.142.20-2.23

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

Poor on {120}, in traces on {001}

Perfect on {110} and {1 1 0}

1.7 Mohs Hardness

5.5-65-5.5

2 10

1.8 Chemical Composition

TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Brookite and Scolecite Chemical Formula

While comparing Brookite 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 Brookite and Scolecite chemical formula.

Chemical formula of Brookite- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Scolecite- CaAl 2Si 3O 10 · 3H 2OUlrich Henn and Claudio C.

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Brookite and Scolecite Specific Gravity

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