Agate and Brookite Physical Properties

Agate

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

2.60-2.64

3.87-4.14

1.5 Fracture

Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)

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

1.6 Cleavage

Indiscernible

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

1.7 Mohs Hardness

6.5-7

5.5-6

1.8 Chemical Composition

SiO₂

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

Agate and Brookite Chemical Formula

While comparing Agate 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 Agate and Brookite chemical formula.

Chemical formula of Agate- SiO₂
Chemical formula of Brookite- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Agate and Brookite Specific Gravity

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