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Labradorite
Labradorite

Povondraite
Povondraite



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Labradorite
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Labradorite and Povondraite 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
2.69-2.72
3.26
1.5 Fracture
Uneven, Conchoidal, Gems, Sixth Edition (2006)
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001)
1.6 Cleavage
Perfect on {001}, less perfect on {010}, intersecting at near 90°; distinct on {110}
None
1.7 Mohs Hardness
6-6.5
Not Available
1.8 Chemical Composition
(Na,Ca)1-2Si3-2O8
NaFe3+3Fe3+6(BO 3) 3Si 6O 18(O,OH) 4Anthony et al , Handbook of Mineralogy (2001)

Labradorite and Povondraite Chemical Formula

While comparing Labradorite and Povondraite 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 Labradorite and Povondraite chemical formula.

  • Chemical formula of Labradorite- (Na,Ca)1-2Si3-2O8
  • Chemical formula of Povondraite- NaFe3+3Fe3+6(BO 3) 3Si 6O 18(O,OH) 4Anthony et al , Handbook of Mineralogy (2001)

Labradorite and Povondraite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Labradorite and Povondraite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Labradorite and Povondraite Optical Properties during the identification of gemstone. Specific gravity of Labradorite is 3.26 whereas that of Povondraite is 3.26.