Muscovite and Nuummite Physical Properties
Tenacity
Elastic
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.78-2.88
  
3.18-3.37
  
Fracture
Micaceous, Brittle
  
Conchoidal
  
Cleavage
Perfect on the {001}
  
Perfect on 210
  
Mohs Hardness
2-3
  
5.5-6
  
Chemical Composition
KAl 2AlSi 3O 10(OH) 2Walter Schumann , Gemstones of the world (2001) More from other references
  
Not Available
  
Muscovite and Nuummite Chemical Formula
While comparing Muscovite 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 Muscovite and Nuummite chemical formula.
- Chemical formula of Muscovite- KAl 2AlSi 3O 10(OH) 2Walter Schumann , Gemstones of the world (2001) More from other references
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Muscovite and Nuummite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Muscovite and Nuummite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Muscovite and Nuummite Optical Properties during the identification of gemstone. Specific gravity of Muscovite is 3.18-3.37 whereas that of Nuummite is 3.18-3.37.