Brazilianite and Thulite Physical Properties

Brazilianite

Thulite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.98-2.993.1

1 7.18

1.5 Fracture

Conchoidal, Gems

Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

(010) Distinct to good

Perfect {010} imperfect {100}

1.7 Mohs Hardness

5.56-7

2 10

1.8 Chemical Composition

NaAl 3(PO 4) 2(OH) 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Ca₂Al₃(SiO₄)₃(OH)

Brazilianite and Thulite Chemical Formula

While comparing Brazilianite and Thulite 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 Brazilianite and Thulite chemical formula.

Chemical formula of Brazilianite- NaAl 3(PO 4) 2(OH) 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Thulite- Ca₂Al₃(SiO₄)₃(OH)

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Brazilianite and Thulite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Brazilianite and Thulite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Brazilianite and Thulite Optical Properties during the identification of gemstone. Specific gravity of Brazilianite is 3.1 whereas that of Thulite is 3.1.