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Fluoro-richterite from
Bear Lake diggings (Gibson Road Western occurrence), Monmouth Township, Haliburton County, Ontario, Canada

Locality type:Diggings
Classification
Species:Fluoro-richterite
Formula:{Na}{CaNa}{Mg5}(Si8O22)(F,OH)2
Comments:Data from Hawthorne et al.(2006) show the presence richterites with a high F content, but with (OH)>F, please see the richterite data for data.

Additional EPMA work on amphiboles located from Bear Lake Road diggings verify the presence of fluoro-richterite, with up to 1.34 apfu F (analyses by Frank K. Mazdab of samples from Frank Craig's collection). See additional discussion at https://www.mindat.org/mesg-6-455298.html
Confirmation
Validity:Confirmed
Confirmation Methods:EPMA
References
References:F.C. Hawthorne, R. Oberti and R.F. Martin (2006) Short-range order in amphiboles from the Bear Lake diggings, Ontario. Canadian Mineralogist, 44, 1171-1179.
Data
Mineral Data:Click here to view Fluoro-richterite data
Locality Data:Click here to view Bear Lake diggings (Gibson Road Western occurrence), Monmouth Township, Haliburton County, Ontario, Canada
Nearest other occurrences of Fluoro-richterite
1.7km (1.1 miles) Hunter property, Monmouth Township, Haliburton County, Ontario, Canada
2.1km (1.3 miles) Gibson Road East occurrence (Titanite Hill), Monmouth Township, Haliburton County, Ontario, Canada
7.7km (4.8 miles) Earle's Farm fluoro-richterite occurrence, Monmouth Township, Haliburton County, Ontario, Canada
7.7km (4.8 miles) Essonville fluoro-richterite occurrence (Essonville roadcut), Monmouth Township, Haliburton County, Ontario, Canada
11.1km (6.9 miles) Wilberforce area, Haliburton County, Ontario, Canada
 
Mineral and/or Locality  
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