Londonite and Magnesite Physical Properties

Londonite

Magnesite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Effervesces in hot HCl

1.3 Durability

Not Available

1.4 Specific Gravity

3.34

2.92-3.12

1.5 Fracture

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

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

None

[10 1 1] perfect

1.7 Mohs Hardness

Not Available

3.5-4.5

1.8 Chemical Composition

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

MgCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Londonite and Magnesite Chemical Formula

While comparing Londonite and Magnesite 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 Magnesite 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 Magnesite- MgCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Londonite and Magnesite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Londonite and Magnesite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Londonite and Magnesite Optical Properties during the identification of gemstone. Specific gravity of Londonite is 2.92-3.12 whereas that of Magnesite is 2.92-3.12.