Gedrite and Zinnwaldite Physical Properties

Gedrite

Zinnwaldite

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Physical Properties

Tenacity

Elastic

Solubility

Durability

Specific Gravity

3.15-3.2592.9-3.1

1 7.18

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Fracture

Uneven

Cleavage

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

Perfect basal {001}

Mohs Hardness

5.5-63.5-4.0

2 10

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Chemical Composition

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

Gedrite and Zinnwaldite Chemical Formula

While comparing Gedrite and Zinnwaldite 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 Gedrite and Zinnwaldite chemical formula.

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

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Gedrite and Zinnwaldite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Gedrite and Zinnwaldite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gedrite and Zinnwaldite Optical Properties during the identification of gemstone. Specific gravity of Gedrite is 2.9-3.1 whereas that of Zinnwaldite is 2.9-3.1.