Wilsonite (a variety of Muscovite)
Current inventory:  0 gems
 

  
Wilsonite is named for Dr. James Wilson of Perth, Ontario, Canada, who discovered it at Bathurst Township, Lanark County, Ontario, Canada.

Discovery date unknown (prior to 1863); IMA status: Not Valid (a variety of Muscovite)

Chemistry

Chemical Formula:

K₂(Mg,Al)_4-5(Al,Si)₈O₂₀(OH)₄   (Muscovite)

Potassium Magnesium Aluminum Silicate Hydroxide

More Information

Wilsonite is a variety of Muscovite.
For more information please see the Muscovite information page.
 

Mindat.org (Wilsonite)
Mindat.org (Muscovite)
Webmineral.com (Muscovite)
 

View mineral photos:

Wilsonite Mineral Photos and Locations

Wilsonite is a pinkish mauve to rose red variety of Muscovite that is named after Dr. James Wilson of Perth, Ontario, Canada, who discovered the material at Bathurst Township, Lanark County, Ontario, Canada. Wilsonite is an aluminosilicate of magnesium and potassium and almost identical in composition, hardness and density to Gieseckite and very similar to Alurgite, also varieties of Muscovite, although Wilsonite has distinct cleavage form and crystal habits. Wilsonite may be pseudomorphous after Nepheline or Cordierite or possibly an altered Scapolite. Wilsonite cabochon gems are uncommon and beautiful with mauve to rose red colors.

Alurgite is another variety of Muscovite that is reddish-purple and gets its color from the presence of manganese in its chemical formula. A green variety of Muscovite also exists that is called Fuchsite and is colored by the presence of chromium.

Distribution: In Canada: Bathurst Township, Lanark County, Ontario and Rémigny, Témiscamingue RCM, Abitibi-Témiscamingue, Québec, Canada.
 

  
Wilsonite gems for sale:

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