Londonite and Moissanite Physical Properties

Londonite

Moissanite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

none

1.3 Durability

Not Available

1.4 Specific Gravity

3.343.17-3.24

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

None

(0001) indistinct

1.7 Mohs Hardness

Not Available9-9.5

2 10

1.8 Chemical Composition

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

SiCArthur Thomas , Gemstones (2009)

Londonite and Moissanite Chemical Formula

While comparing Londonite and Moissanite 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 Moissanite 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 Moissanite- SiCArthur Thomas , Gemstones (2009)

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Londonite and Moissanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Londonite and Moissanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Londonite and Moissanite Optical Properties during the identification of gemstone. Specific gravity of Londonite is 3.17-3.24 whereas that of Moissanite is 3.17-3.24.