Afghanite and Magnesite Physical Properties

Afghanite

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

2.55-2.65

2.92-3.12

1.5 Fracture

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle, Conchoidal, Brittle

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

Perfect {10 1 0}

[10 1 1] perfect

1.7 Mohs Hardness

5.5-6

3.5-4.5

1.8 Chemical Composition

(Na,Ca,K) 8(Si,Al) 12O 24(SO 4,Cl,CO 3) 3(H 2O)Arthur Thomas , Gemstones (2009)

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

Afghanite and Magnesite Chemical Formula

While comparing Afghanite 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 Afghanite and Magnesite chemical formula.

Chemical formula of Afghanite- (Na,Ca,K) 8(Si,Al) 12O 24(SO 4,Cl,CO 3) 3(H 2O)Arthur Thomas , Gemstones (2009)
Chemical formula of Magnesite- MgCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Afghanite and Magnesite Specific Gravity

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