Hardystonite and Brookite Physical Properties

Hardystonite

Brookite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.396-3.4433.87-4.14

1 7.18

1.5 Fracture

Brittle, Metallic

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

1.6 Cleavage

[001] good, [100] and [110] fair

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

1.7 Mohs Hardness

3-45.5-6

2 10

1.8 Chemical Composition

Ca 2ZnSi 2O 7Anthony et al , Handbook of mineralogy (2001)

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

Hardystonite and Brookite Chemical Formula

While comparing Hardystonite 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 Hardystonite and Brookite chemical formula.

Chemical formula of Hardystonite- Ca 2ZnSi 2O 7Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Brookite- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Hardystonite and Brookite Specific Gravity

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