Brucite and Chalcedony Physical Properties

Brucite

Chalcedony

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1 Physical Properties

1.1 Tenacity

Sectile

Not Available

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.39

2.55-2.70

1.5 Fracture

Irregular

Uneven, Splintery, Conchoidal, Uneven, Splintery, Conchoidal, UnevenWalter Schumann

1.6 Cleavage

Perfect on {0001}

Absent

1.7 Mohs Hardness

2.5

6.5-7

1.8 Chemical Composition

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

SiO₂

Brucite and Chalcedony Chemical Formula

While comparing Brucite and Chalcedony 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 Brucite and Chalcedony chemical formula.

Chemical formula of Brucite- Mg(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Chalcedony- SiO₂

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Brucite and Chalcedony Specific Gravity

Another important criteria for qualitative analysis of gemstones is Brucite and Chalcedony Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Brucite and Chalcedony Optical Properties during the identification of gemstone. Specific gravity of Brucite is 2.55-2.70 whereas that of Chalcedony is 2.55-2.70.