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Scheelite
Scheelite

Nuummite
Nuummite



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Scheelite
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Nuummite

Scheelite and Nuummite Physical Properties

Physical Properties

Tenacity

Brittle
-

Solubility

-
-

Durability

-
-

Specific Gravity

5.9-6.33.18-3.37
1 7.18
👆🏻

Fracture

Conchoidal, Uneven
Conchoidal

Cleavage

On {101}, distinct; on {112}, interrupted; on {001}, indistinct
Perfect on 210

Mohs Hardness

4.5-55.5-6
2 10
👆🏻

Chemical Composition

CaWO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
Na(Fe,Mg)7(AlSi7O22)(OH)2

Scheelite and Nuummite Chemical Formula

While comparing Scheelite and Nuummite 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 Nuummite chemical formula.

  • Chemical formula of Scheelite- CaWO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Nuummite- Na(Fe,Mg)7(AlSi7O22)(OH)2

Scheelite and Nuummite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Scheelite and Nuummite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Scheelite and Nuummite Optical Properties during the identification of gemstone. Specific gravity of Scheelite is 3.18-3.37 whereas that of Nuummite is 3.18-3.37.