Test Website - You are connected to the test webserver. To return to the live website, click here

Wardite

General Information
Chemical Formula
NaAl
 
3
(PO
 
4
)
 
2
(OH)
 
4
· 2H
 
2
O
Michael O’Donoghue, Gems, Sixth Edition (2006)
More from other references
Physical Properties of Wardite
Mohs Hardness4.5 to 5
Ulrich Henn and Claudio C. Milisenda, Gemmological Tables (2004)
More from other references
Specific Gravity2.81
Ulrich Henn and Claudio C. Milisenda, Gemmological Tables (2004)
More from other references
Cleavage QualityPerfect
Michael O’Donoghue, Gems, Sixth Edition (2006)
FractureConchoidal
Arthur Thomas, Gemstones (2009)
Optical Properties of Wardite
Refractive Index1.590 to 1.599
Ulrich Henn and Claudio C. Milisenda, Gemmological Tables (2004)
More from other references
Optical CharacterUniaxial/+
Ulrich Henn and Claudio C. Milisenda, Gemmological Tables (2004)
More from other references
Birefringence0.009
Ulrich Henn and Claudio C. Milisenda, Gemmological Tables (2004)
More from other references
Colour
Colour (General)Blue-green
Ulrich Henn and Claudio C. Milisenda, Gemmological Tables (2004)
More from other references
TransparencyTransparent,Translucent
Michael O’Donoghue, Gems, Sixth Edition (2006)
More from other references
LustreVitreous,Greasy
Arthur Thomas, Gemstones (2009)
Crystallography of Wardite
Crystal SystemTetragonal
Ulrich Henn and Claudio C. Milisenda, Gemmological Tables (2004)
More from other references
HabitDipyramidal pseudo-octahedral crystals
Michael O’Donoghue, Gems, Sixth Edition (2006)
More from other references
Geological Environment
Where found:Wardite occurs in complex-zoned pegmatites. Some wardite occurs with large
green variscite nodules.
Michael O’Donoghue, Gems, Sixth Edition (2006)
More from other references
Further Information
Mineral information:Wardite information at mindat.org
Significant Gem Localities
Brazil
 
  • ParaĂ­ba
    • Pedra Lavrada
Gems, Sixth Edition, Michael O’Donoghue, 2006, p. 465
USA
 
  • Maine
    • Oxford County
      • Newry
Gems, Sixth Edition, Michael O’Donoghue, 2006, p. 465
  • Utah
    • Utah County
      • Sunshine Mining District
        • Fairfield
          • Clay Canyon
Gems, Sixth Edition, Michael O’Donoghue, 2006, p. 465
Copyright © Jolyon & Katya Ralph 1993-2026. Site Map. Photographs are copyright of the individuals who submitted them. For more information please contact the . Gemdat.org is an online information resource dedicated to providing free gemmological information to all.