Londonite and Fuchsite Physical Properties

Londonite

Fuchsite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.342.77-2.88

1 7.18

1.5 Fracture

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

Uneven

1.6 Cleavage

None

Perfect basal

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)

K(Al,Cr) 3Si 3O 10(OH) 2Gemdat.org , Management Team (2012)

Londonite and Fuchsite Chemical Formula

While comparing Londonite and Fuchsite 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 Fuchsite 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 Fuchsite- K(Al,Cr) 3Si 3O 10(OH) 2Gemdat.org , Management Team (2012)

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Londonite and Fuchsite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Londonite and Fuchsite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Londonite and Fuchsite Optical Properties during the identification of gemstone. Specific gravity of Londonite is 2.77-2.88 whereas that of Fuchsite is 2.77-2.88.