Charlesite and Brookite Physical Properties

Charlesite

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

1.793.87-4.14

1 7.18

1.5 Fracture

Irregular/uneven, Brittle, Metallic

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

1.6 Cleavage

Perfect on {10bar10}

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

1.7 Mohs Hardness

2.55.5-6

2 10

1.8 Chemical Composition

Ca6(Al,Si)2(SO4)2B(OH)4(OH,O)12•26(H2O)

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

Charlesite and Brookite Chemical Formula

While comparing Charlesite 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 Charlesite and Brookite chemical formula.

Chemical formula of Charlesite- Ca6(Al,Si)2(SO4)2B(OH)4(OH,O)12•26(H2O)
Chemical formula of Brookite- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Charlesite and Brookite Specific Gravity

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