Edenite and Gahnospinel Physical Properties

Edenite

Gahnospinel

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.05-3.373.65-4.55

1 7.18

1.5 Fracture

Conchoidal, Brittle, Conchoidal

ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

Good on (110)

None, but may exhibit slight parting

1.7 Mohs Hardness

5-67.5-8

2 10

1.8 Chemical Composition

NaCa2Mg5Si7AlO22(OH)2

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

Edenite and Gahnospinel Chemical Formula

While comparing Edenite 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 Edenite and Gahnospinel chemical formula.

Chemical formula of Edenite- NaCa2Mg5Si7AlO22(OH)2
Chemical formula of Gahnospinel- (Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)

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Edenite and Gahnospinel Specific Gravity

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