Edenite and Chalcedony Physical Properties

Edenite

Chalcedony

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.05-3.37

2.55-2.70

1.5 Fracture

Conchoidal, Brittle, Conchoidal

Uneven, Splintery, Conchoidal, Uneven, Splintery, Conchoidal, UnevenWalter Schumann

1.6 Cleavage

Good on (110)

Absent

1.7 Mohs Hardness

5-6

6.5-7

1.8 Chemical Composition

NaCa2Mg5Si7AlO22(OH)2

SiO₂

Edenite and Chalcedony Chemical Formula

While comparing Edenite and Chalcedony 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 Chalcedony chemical formula.

Chemical formula of Edenite- NaCa2Mg5Si7AlO22(OH)2
Chemical formula of Chalcedony- SiO₂

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Edenite and Chalcedony Specific Gravity

Another important criteria for qualitative analysis of gemstones is Edenite and Chalcedony Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Edenite and Chalcedony Optical Properties during the identification of gemstone. Specific gravity of Edenite is 2.55-2.70 whereas that of Chalcedony is 2.55-2.70.