×

Wood Opal
Wood Opal
☒

Selenite
Selenite
☒



ADD ⊕
Compare
X
Wood Opal
X
Selenite
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)
 
-
-
-
-9999
-
Perfect
2
CaSO4·2H2O