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Scheelite
Scheelite

Boulder Opal
Boulder Opal



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Scheelite
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Boulder Opal

Scheelite and Boulder Opal Physical Properties

Physical Properties

Tenacity

Brittle
-

Solubility

-
-

Durability

-
-

Specific Gravity

5.9-6.31.98-2.25
1 7.18
👆🏻

Fracture

Conchoidal, Uneven
Conchoidal

Cleavage

On {101}, distinct; on {112}, interrupted; on {001}, indistinct
None

Mohs Hardness

4.5-55-6.5
2 10
👆🏻

Chemical Composition

CaWO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
SiO 2 + H 2OUlrich Henn and Claudio C.

Scheelite and Boulder Opal Chemical Formula

While comparing Scheelite 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 Scheelite and Boulder Opal chemical formula.

  • Chemical formula of Scheelite- CaWO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Boulder Opal- SiO 2 + H 2OUlrich Henn and Claudio C.

Scheelite and Boulder Opal Specific Gravity

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