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Stolzite
Stolzite

Crystal Opal
Crystal Opal



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Stolzite
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Crystal Opal

Stolzite and Crystal Opal Physical Properties

Physical Properties

Tenacity

Brittle
-

Solubility

-
-

Durability

-
-

Specific Gravity

21.97-2.22
1 7.18
👆🏻

Fracture

Conchoidal, Uneven
Conchoidal

Cleavage

Imperfect on {001}, indistinct on {011}
None

Mohs Hardness

2.5-35.5-6.5
2 10
👆🏻

Chemical Composition

PbWO4
SiO 2 + H 2OUlrich Henn and Claudio C.

Stolzite and Crystal Opal Chemical Formula

While comparing Stolzite and Crystal 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 Stolzite and Crystal Opal chemical formula.

  • Chemical formula of Stolzite- PbWO4
  • Chemical formula of Crystal Opal- SiO 2 + H 2OUlrich Henn and Claudio C.

Stolzite and Crystal Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Stolzite and Crystal Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Stolzite and Crystal Opal Optical Properties during the identification of gemstone. Specific gravity of Stolzite is 1.97-2.22 whereas that of Crystal Opal is 1.97-2.22.