Thulite and Brucite Physical Properties

Thulite

Brucite

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1 Physical Properties

1.1 Tenacity

Not Available

Sectile

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.12.39

1 7.18

1.5 Fracture

Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)

Irregular

1.6 Cleavage

Perfect {010} imperfect {100}

Perfect on {0001}

1.7 Mohs Hardness

6-72.5

2 10

1.8 Chemical Composition

Ca₂Al₃(SiO₄)₃(OH)

Mg(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

Thulite and Brucite Chemical Formula

While comparing Thulite and Brucite 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 Thulite and Brucite chemical formula.

Chemical formula of Thulite- Ca₂Al₃(SiO₄)₃(OH)
Chemical formula of Brucite- Mg(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

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Thulite and Brucite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Thulite and Brucite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Thulite and Brucite Optical Properties during the identification of gemstone. Specific gravity of Thulite is 2.39 whereas that of Brucite is 2.39.