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Crystal Opal
Crystal Opal
☒

Rubellite
Rubellite
☒



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Crystal Opal
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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
1.97-2.22
Conchoidal
None
5.5-6.5
SiO 2 + H 2OUlrich Henn and Claudio C.
 
-
-
-
3.01-3.06
Conchoidal
Indiscernible
7-7.5
Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.

Compare Yellow Gemstones

Yellow Gemstones

Eosphorite
Eosphorite
Ettringite
Ettringite
Fayalite
Fayalite
Rubellite
Cymophane
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Rubellite
Danburite
Rubellite Vs Danburite
Rubellite
Diaspore
Rubellite Vs Diaspore

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