Iddingsite and Edenite Physical Properties

Iddingsite

Edenite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.5-2.83.05-3.37

1 7.18

1.5 Fracture

Not Available

Conchoidal, Brittle, Conchoidal

1.6 Cleavage

{???} Perfect

Good on (110)

1.7 Mohs Hardness

35-6

2 10

1.8 Chemical Composition

MgO.Fe2O3.3SiO2•4(H2O)

NaCa2Mg5Si7AlO22(OH)2

Iddingsite and Edenite Chemical Formula

While comparing Iddingsite and Edenite 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 Iddingsite and Edenite chemical formula.

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

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Iddingsite and Edenite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Iddingsite and Edenite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Iddingsite and Edenite Optical Properties during the identification of gemstone. Specific gravity of Iddingsite is 3.05-3.37 whereas that of Edenite is 3.05-3.37.