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Uvite
Uvite

Sellaite
Sellaite



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Uvite and Sellaite Physical Properties

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1 Physical Properties
1.1 Tenacity
Not Available
Brittle
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.97-3.14
3.14-3.16
1.5 Fracture
Uneven, Conchoidal, Brittle
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle
1.6 Cleavage
{1011} Indistinct
Perfect on {010} and {110}
1.7 Mohs Hardness
Not Available
5-5.5
1.8 Chemical Composition
Ca(Mg 3)MgAl 5(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
MgF 2Ulrich Henn and Claudio C.

Uvite and Sellaite Chemical Formula

While comparing Uvite and Sellaite 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 Uvite and Sellaite chemical formula.

  • Chemical formula of Uvite- Ca(Mg 3)MgAl 5(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
  • Chemical formula of Sellaite- MgF 2Ulrich Henn and Claudio C.

Uvite and Sellaite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Uvite and Sellaite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Uvite and Sellaite Optical Properties during the identification of gemstone. Specific gravity of Uvite is 3.14-3.16 whereas that of Sellaite is 3.14-3.16.