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Wood Opal
Wood Opal
☒

Alunite
Alunite
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Wood Opal
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Alunite

Wood Opal and Alunite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
1.98-2.50
-
None
5.5-6.5
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
 
Brittle
Soluble
-
2.6-2.9
Conchoidal, Uneven
On {0001}, perfect
3.5-4
KAl3(SO4)2(OH)6

Wood Opal and Alunite Chemical Formula

While comparing Wood Opal and Alunite 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 Wood Opal and Alunite chemical formula.

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Wood Opal and Alunite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Wood Opal and Alunite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Wood Opal Vs Alunite during the identification of gemstone. Specific gravity of Wood Opal is whereas that of Alunite is .