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Pleonaste
Pleonaste

Umbalite
Umbalite



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Pleonaste
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Umbalite

Pleonaste and Umbalite Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.803.62-4.33
Amber
1 7.18
1.5 Fracture
Not Available
Uneven, Uneven, ConchoidalGemdat.org, Management Team (2012)
1.6 Cleavage
Not Available
Not Available
1.7 Mohs Hardness
87-7.5
Amber
2 10
1.8 Chemical Composition
(Mg,Fe)Al 2O 4Gemdat.org , Management Team (2012)
Mg 3Al 2(SiO 4) 3 -Mn2+3Al 2(SiO 4) 3Gemdat.org , Management Team (2012)

Pleonaste and Umbalite Chemical Formula

While comparing Pleonaste and Umbalite 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 Pleonaste and Umbalite chemical formula.

  • Chemical formula of Pleonaste- (Mg,Fe)Al 2O 4Gemdat.org , Management Team (2012)
  • Chemical formula of Umbalite- Mg 3Al 2(SiO 4) 3 -Mn2+3Al 2(SiO 4) 3Gemdat.org , Management Team (2012)

Pleonaste and Umbalite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pleonaste and Umbalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pleonaste and Umbalite Optical Properties during the identification of gemstone. Specific gravity of Pleonaste is 3.62-4.33 whereas that of Umbalite is 3.62-4.33.