Edenite and Iddingsite Physical Properties

Edenite

Iddingsite

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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

3.05-3.372.5-2.8

1 7.18

1.5 Fracture

Conchoidal, Brittle, Conchoidal

Not Available

1.6 Cleavage

Good on (110)

{???} Perfect

1.7 Mohs Hardness

5-63

2 10

1.8 Chemical Composition

NaCa2Mg5Si7AlO22(OH)2

MgO.Fe2O3.3SiO2•4(H2O)

Edenite and Iddingsite Chemical Formula

While comparing Edenite and Iddingsite 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 Iddingsite chemical formula.

Chemical formula of Edenite- NaCa2Mg5Si7AlO22(OH)2
Chemical formula of Iddingsite- MgO.Fe2O3.3SiO2•4(H2O)

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Edenite and Iddingsite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Edenite and Iddingsite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Edenite and Iddingsite Optical Properties during the identification of gemstone. Specific gravity of Edenite is 2.5-2.8 whereas that of Iddingsite is 2.5-2.8.