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Afghanite
Afghanite

Willemite
Willemite



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Afghanite
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Willemite

Afghanite and Willemite Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.55-2.653.89-4.18
Amber
1 7.18
1.5 Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle, Conchoidal, Brittle
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Uneven
1.6 Cleavage
Perfect {10 1 0}
{0001}, {11 2 0} imperfect
1.7 Mohs Hardness
5.5-65.5
Amber
2 10
1.8 Chemical Composition
(Na,Ca,K) 8(Si,Al) 12O 24(SO 4,Cl,CO 3) 3(H 2O)Arthur Thomas , Gemstones (2009)
Zn 2SiO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Afghanite and Willemite Chemical Formula

While comparing Afghanite and Willemite 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 Willemite 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 Willemite- Zn 2SiO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Afghanite and Willemite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Afghanite and Willemite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Afghanite and Willemite Optical Properties during the identification of gemstone. Specific gravity of Afghanite is 3.89-4.18 whereas that of Willemite is 3.89-4.18.