Demantoid and Brookite Physical Properties

Demantoid

Brookite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.77-3.953.87-4.14

1 7.18

1.5 Fracture

Not Available

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

1.6 Cleavage

Not Available

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

1.7 Mohs Hardness

6.55.5-6

2 10

1.8 Chemical Composition

Ca 3Fe 2(SiO 4) 3Ulrich Henn and Claudio C.

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

Demantoid and Brookite Chemical Formula

While comparing Demantoid and Brookite 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 Demantoid and Brookite chemical formula.

Chemical formula of Demantoid- Ca 3Fe 2(SiO 4) 3Ulrich Henn and Claudio C.
Chemical formula of Brookite- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Demantoid and Brookite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Demantoid and Brookite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Demantoid and Brookite Optical Properties during the identification of gemstone. Specific gravity of Demantoid is 3.87-4.14 whereas that of Brookite is 3.87-4.14.