Brookite and Moonstone Physical Properties

Brookite

Moonstone

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

3.87-4.142.56-2.60

1 7.18

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Fracture

Subconchoidal, Conchoidal

Uneven, ConchoidalWalter Schumann

Cleavage

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

2,1 basal ; 2,1 prismatic ; 3,1 pinacoidal

Mohs Hardness

5.5-66-6.5

2 10

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Chemical Composition

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

Plagioclase Feldspar s: (Na,Ca)Al_1-2Si_3-2O₈ Orthoclase Feldspar : KAlSi₃O₈

Brookite and Moonstone Chemical Formula

While comparing Brookite and Moonstone 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 Moonstone chemical formula.

Chemical formula of Brookite- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Moonstone- Plagioclase Feldspar s: (Na,Ca)Al_1-2Si_3-2O₈ Orthoclase Feldspar : KAlSi₃O₈

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Brookite and Moonstone Specific Gravity

Another important criteria for qualitative analysis of gemstones is Brookite and Moonstone Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Brookite and Moonstone Optical Properties during the identification of gemstone. Specific gravity of Brookite is 2.56-2.60 whereas that of Moonstone is 2.56-2.60.