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Bentley Lake occurrence (Madawaska mine property), Faraday Township, Hastings Co., Ontario, Canada

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Latitude & Longitude (WGS84): 45° 1' 39'' North , 77° 55' 5'' West
Latitude & Longitude (decimal): 45.0275, -77.9180555556
Other/historical region names associated with this locality:Bentley Lake occurrence (Faraday mine property)
Other regions containing this locality:Bancroft area (Bancroft district), Ontario, Canada
North America


The occurrence was originally staked as a uranium prospect by A.H.Shore of Bancroft in 1949.

Access Description: Hwy 28 to Siddon Lake road, park past the end of the road (past lot 101) and walk N 250 m to a trench on the S slope of a steep hill. A large face of calcite contains ilmenite crystals. Magnetite # 1 : 60 ft N-NW of cottage road as it traverses 'pt 98' of lots 14-15, con A. A trench, 30 x 2-5 ft deep and 3-4 ft wide is on the N. Pappas property - no collectors allowed. Magnetite # 2 : On the S-facing slope, immediately below a bluff, about 100 ft into lot 15 (W) from Pappas' W boundary. A trench, 100 x 3-5 ft wide and 1-6 ft deep. Property owned by E. Stanfeld, mining rights by Madawaska Mines. Magnetite # 3 : About 400 ft NW of # 2, on the top of a ridge. Spotty diggings extend 300 ft W, 3-5 ft wide and 2-10 ft deep - magnetite with sphene. Ilmenite : lot 15, con A, about 400 ft W of # 2 and 150 ft SW of # 3. Calcite face with vug, about 35 x 8 ft high, 10 ft W of a skid road on it's E side and 200 ft E of a skid road on it's W side.

This is the locality for the large ilmenite and magnetite crystals mentioned in the Ontario issue of the Mineralogical Record (1982).

Such specimens are often labeled as being from the mine (Faraday or Madawaska), but they were actually found at a surface showing on the property, also known as the Bentley Lake Occurrence.

Robinson & Chamberlain (1982) report under Ilmenite that "Fine crystals of ilmenite weighing more than 30 kg have been found associated with magnetite, biotite, microcline and apatite in a small calcite vein-dike on the Madawaska mines property near Bancroft."

And later, under Magnetite: "The second [magnetite] occurrence is at the ilmenite locality on the Madawaska mines property, where hundreds of fine crystals have been removed."

Mineral List


8 valid minerals.

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References

Satterly, J. (1977) A Catalogue of The Ontario Localities Represented by The Mineral Collection of The Royal Ontario Museum, Ontario Geological Survey, Miscellaneous Paper 70, p.203, 218-219.

Robinson, G. & Chamberlain, S. (1982): An Introduction to the Mineralogy of Ontario's Grenville Province. Mineralogical Record 13, 71-86.

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