Adamite and Brucite Physical Properties

Adamite

Brucite

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1 Physical Properties

1.1 Tenacity

Brittle

Sectile

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4.32-4.48

2.39

1.5 Fracture

Uneven, Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Uneven, Subconchoidal, Brittle, Metallic, Brittle, Metallic

Irregular

1.6 Cleavage

{101}, good; {010}, poor

Perfect on {0001}

1.7 Mohs Hardness

3.5

2.5

1.8 Chemical Composition

Zn 2(AsO 4)(OH)Michael OâDonoghue , Gems, Sixth edition (2006)

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

Adamite and Brucite Chemical Formula

While comparing Adamite 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 Adamite and Brucite chemical formula.

Chemical formula of Adamite- Zn 2(AsO 4)(OH)Michael OâDonoghue , Gems, Sixth edition (2006)
Chemical formula of Brucite- Mg(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

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Adamite and Brucite Specific Gravity

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