Willemite and Gahnospinel Physical Properties

Willemite

Gahnospinel

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.89-4.183.65-4.55

1 7.18

1.5 Fracture

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Uneven

ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

{0001}, {11 2 0} imperfect

None, but may exhibit slight parting

1.7 Mohs Hardness

5.57.5-8

2 10

1.8 Chemical Composition

Zn 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

(Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)

Willemite and Gahnospinel Chemical Formula

While comparing Willemite and Gahnospinel 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 Willemite and Gahnospinel chemical formula.

Chemical formula of Willemite- Zn 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Gahnospinel- (Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)

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Willemite and Gahnospinel Specific Gravity

Another important criteria for qualitative analysis of gemstones is Willemite and Gahnospinel Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Willemite and Gahnospinel Optical Properties during the identification of gemstone. Specific gravity of Willemite is 3.65-4.55 whereas that of Gahnospinel is 3.65-4.55.