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Edenite
Edenite

Boulder Opal
Boulder Opal



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Edenite
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Boulder Opal

Edenite and Boulder Opal Physical Properties

Physical Properties

Tenacity

Brittle
-

Solubility

-
-

Durability

-
-

Specific Gravity

3.05-3.371.98-2.25
1 7.18
👆🏻

Fracture

Conchoidal
Conchoidal

Cleavage

Good on (110)
None

Mohs Hardness

5-65-6.5
2 10
👆🏻

Chemical Composition

NaCa2Mg5Si7AlO22(OH)2
SiO 2 + H 2OUlrich Henn and Claudio C.

Edenite and Boulder Opal Chemical Formula

While comparing Edenite and Boulder Opal 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 Boulder Opal chemical formula.

  • Chemical formula of Edenite- NaCa2Mg5Si7AlO22(OH)2
  • Chemical formula of Boulder Opal- SiO 2 + H 2OUlrich Henn and Claudio C.

Edenite and Boulder Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Edenite and Boulder Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Edenite and Boulder Opal Optical Properties during the identification of gemstone. Specific gravity of Edenite is 1.98-2.25 whereas that of Boulder Opal is 1.98-2.25.