Turquoise and Brucite Physical Properties

Turquoise

Brucite

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1 Physical Properties

1.1 Tenacity

Not Available

Sectile

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.30-2.902.39

1 7.18

1.5 Fracture

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

Irregular

1.6 Cleavage

Good to perfect_usually N/A

Perfect on {0001}

1.7 Mohs Hardness

5-62.5

2 10

1.8 Chemical Composition

CuAl₆(PO₄)₄(OH)₈ • 4H₂O

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

Turquoise and Brucite Chemical Formula

While comparing Turquoise 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 Turquoise and Brucite chemical formula.

Chemical formula of Turquoise- CuAl₆(PO₄)₄(OH)₈ • 4H₂O
Chemical formula of Brucite- Mg(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

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Turquoise and Brucite Specific Gravity

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