Willemite and Gedrite Physical Properties

Willemite

Gedrite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

3.89-4.183.15-3.259

1 7.18

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Fracture

Conchoidal, Uneven

Cleavage

{0001}, {11 2 0} imperfect

Gedrite Magnesiogedrite , Comments: Dark gray cleavage fragment of magnesiogedrite (gedrite). , Location: Bamble, Telemark, Norway. , Scale: See Image.

Mohs Hardness

5.55.5-6

2 10

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Chemical Composition

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

(Mg,Fe2+ ) 2[(Mg,Fe2+ ) 3Al 2](Si 6Al 2)O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)

Willemite and Gedrite Chemical Formula

While comparing Willemite and Gedrite 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 Gedrite chemical formula.

Chemical formula of Willemite- Zn 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Gedrite- (Mg,Fe2+ ) 2[(Mg,Fe2+ ) 3Al 2](Si 6Al 2)O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)

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Willemite and Gedrite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Willemite and Gedrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Willemite and Gedrite Optical Properties during the identification of gemstone. Specific gravity of Willemite is 3.15-3.259 whereas that of Gedrite is 3.15-3.259.