Sunstone and Brookite Physical Properties

Sunstone

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

2.62-2.653.87-4.14

1 7.18

1.5 Fracture

Gemstones of the world (2001)

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

1.6 Cleavage

001

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

1.7 Mohs Hardness

65.5-6

2 10

1.8 Chemical Composition

Microcline: KAlSi₃O₈ Oligoclase: (Na,Ca)Al_1-2Si_3-2O₈

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

Sunstone and Brookite Chemical Formula

While comparing Sunstone 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 Sunstone and Brookite chemical formula.

Chemical formula of Sunstone- Microcline: KAlSi₃O₈ Oligoclase: (Na,Ca)Al_1-2Si_3-2O₈
Chemical formula of Brookite- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Sunstone and Brookite Specific Gravity

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