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Taylor #2 pegmatite, Brownridge Township, Kenora District, Ontario, Canada

Latitude: 49°49'0"N
Longitude: 92°43'42"W
A granite pegmatite with assimilated chlorite schist. Brand et al. (2009) described the geology and mineralogy of the occurrence of emerald in a granite pegmatite/ultramafic rock interface. The contacts were diffuse indicating mixing and assimilation. The provocative chemical analyses indicated F-dominant compositions of the tourmaline equivalent to fluor-dravite and a fluorine-dominant schorl. The fluor-dravite appears to have been restricted to the chlorite schist host, while the "schorl" occurred in the granite pegmatite. The authors also observed a nickel arsenide, which they did not further characterize. The species list for this locality includes species from the contact rocks as well as the granite pegmatite itself. The co-ordinates of the location are as they appeared in Brand et al. (2009).

Mineral List

Actinolite
Albite
var: Andesine
Almandine
Anthophyllite
Arsenopyrite
Beryl
Beryl
var: Emerald

Bismuthinite
'Chlorite Group'
'Columbite-Tantalite'
Cummingtonite
Fluorapatite
Fluor-dravite
Forsterite
Graphite
Ilmenite
Magnesio-hornblende
Microcline
Muscovite
Phlogopite
Pyrite
Quartz
Schorl ?
Sphalerite
Titanite
Zircon


27 entries listed. 23 valid minerals.

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References

Brand, Allison A., Groat, Lee A., Linnen, Robert L., Garland, Mary I., Btraks, Frederick W., and Giuliani, Gaston, 2009, Emerald Lake Mineralization Associated with the Mavis Lake Pegmatite Group, near Dryden, Ontario, Canadian Mineralogist, v 47, p. 315-336.

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