Londonite and Brucite Physical Properties

Londonite

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

3.342.39

1 7.18

1.5 Fracture

ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal

Irregular

1.6 Cleavage

None

Perfect on {0001}

1.7 Mohs Hardness

Not Available2.5

2 10

1.8 Chemical Composition

(Cs,K,Rb)Al 4Be 4(B,Be) 12O 28Anthony et al , Handbook of mineralogy (2001)

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

Londonite and Brucite Chemical Formula

While comparing Londonite 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 Londonite and Brucite chemical formula.

Chemical formula of Londonite- (Cs,K,Rb)Al 4Be 4(B,Be) 12O 28Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Brucite- Mg(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

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Londonite and Brucite Specific Gravity

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