Grandidierite and Magnesite Physical Properties

Grandidierite

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

2.85-3.002.92-3.12

1 7.18

1.5 Fracture

Brittle, UnevenArthur Thomas, Gemstones (2009), Brittle, Uneven

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

Perfect

[10 1 1] perfect

1.7 Mohs Hardness

7.53.5-4.5

2 10

1.8 Chemical Composition

(Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.

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

Grandidierite and Magnesite Chemical Formula

While comparing Grandidierite 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 Grandidierite and Magnesite chemical formula.

Chemical formula of Grandidierite- (Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.
Chemical formula of Magnesite- MgCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Grandidierite and Magnesite Specific Gravity

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