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Euxenite-(Y) from
Beryl Pit, Quadeville area, Lyndoch Township, Brudenell-Lyndoch-and-Raglan, Renfrew County, Ontario, Canada


07597170017272023971521.jpg
Euxenite-(Y)

Beryl Pit, Quadeville area, Lyndoch Township, Brudenell-Lyndoch-and-Raglan, Renfrew County, Ontario, Canada
00004260017362307518595.jpg
Euxenite-(Y)

Beryl Pit, Quadeville area, Lyndoch Township, Brudenell-Lyndoch-and-Raglan, Renfrew County, Ontario, Canada
06398160017272023984962.jpg
Euxenite-(Y)

Beryl Pit, Quadeville area, Lyndoch Township, Brudenell-Lyndoch-and-Raglan, Renfrew County, Ontario, Canada
02276790017362307512856.jpg
Euxenite-(Y)

Beryl Pit, Quadeville area, Lyndoch Township, Brudenell-Lyndoch-and-Raglan, Renfrew County, Ontario, Canada
06920610017362307512928.jpg
Euxenite-(Y)

Beryl Pit, Quadeville area, Lyndoch Township, Brudenell-Lyndoch-and-Raglan, Renfrew County, Ontario, Canada
00004260017362307518595.jpg
Euxenite-(Y)

Beryl Pit, Quadeville area, Lyndoch Township, Brudenell-Lyndoch-and-Raglan, Renfrew County, Ontario, Canada
08595350017362307515107.jpg
Euxenite-(Y)

Beryl Pit, Quadeville area, Lyndoch Township, Brudenell-Lyndoch-and-Raglan, Renfrew County, Ontario, Canada
02276790017362307512856.jpg
Euxenite-(Y)

Beryl Pit, Quadeville area, Lyndoch Township, Brudenell-Lyndoch-and-Raglan, Renfrew County, Ontario, Canada
07597170017272023971521.jpg
Euxenite-(Y)

Beryl Pit, Quadeville area, Lyndoch Township, Brudenell-Lyndoch-and-Raglan, Renfrew County, Ontario, Canada
03526960017362307524190.jpg
Euxenite-(Y)

Beryl Pit, Quadeville area, Lyndoch Township, Brudenell-Lyndoch-and-Raglan, Renfrew County, Ontario, Canada
06398160017272023984962.jpg
Euxenite-(Y)

Beryl Pit, Quadeville area, Lyndoch Township, Brudenell-Lyndoch-and-Raglan, Renfrew County, Ontario, Canada
04774380017362307523724.jpg
Euxenite-(Y)

Beryl Pit, Quadeville area, Lyndoch Township, Brudenell-Lyndoch-and-Raglan, Renfrew County, Ontario, Canada
Locality type:Pit
Classification
Species:Euxenite-(Y)
Formula:(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Comments:originally described as lyndochite (Miller 1898, Ellsworth 1927)

Euxenite crystals of about 3 to 5 cm can be found but they are found infrequently & they occur within a close proximity to each other, so if you locate one other are probably present nearby.

Bob Downs looked at the Ellsworth (1927) analysis (July 23, 2022; per com. R. Gunter) and found a good match for Euxenite -(Y) with a crystal chemistry of:

Y 0.577
Ce 0.095
Th 0.067
Ca 0.310

Fe0.090
Nb 1.115
Ta 0.062
Ti 0.734

Cation Sum 3.048
O 5.995

The older analyses can be used to quantify these niobates into species.
Habit:located in rotten looking feldspar
Quality for species:Good crystals or rich for species - important (!)
Abundance at site:Rare
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Magnetite13
Feldspar Group8
Microcline7
K Feldspar6
Columbite-(Fe)-Columbite-(Mn) Series6
Zircon5
- var Cyrtolite1
Beryl4
Fluorite3
Mica Group3
Muscovite2
Schorl2
Albite2
- var Peristerite1
Allanite-(Ce)1
Data
Mineral Data:Click here to view Euxenite-(Y) data
Locality Data:Click here to view Beryl Pit, Quadeville area, Lyndoch Township, Brudenell-Lyndoch-and-Raglan, Renfrew County, Ontario, Canada
Photo GalleryView Gallery (48 photos)
Data Identifiers
Mindat Occurrence Record ID:485437
Long-form Identifier:1:3:485437:1
GUID (UUID V4):0
Nearest other occurrences of Euxenite-(Y)
3.7km (2.3 miles) ⓘRose Quartz Pit, Quadeville area, Lyndoch Township, Brudenell-Lyndoch-and-Raglan, Renfrew County, Ontario, Canada
18.4km (11.4 miles) ⓘCraigmont Mine, Raglan Township, Brudenell-Lyndoch-and-Raglan, Renfrew County, Ontario, Canada
18.4km (11.5 miles) ⓘCraigmount workings, Craigmont Mine, Raglan Township, Brudenell-Lyndoch-and-Raglan, Renfrew County, Ontario, Canada
33.2km (20.7 miles) ⓘReeves Mine, Monteagle Township, Hastings Highlands Municipality, Hastings County, Ontario, Canada
33.3km (20.7 miles) ⓘEganville area, Bonnechere Valley, Renfrew County, Ontario, Canada
36.4km (22.6 miles) ⓘGenesee No. 2 Mine, Monteagle Township, Hastings Highlands Municipality, Hastings County, Ontario, Canada
39.2km (24.4 miles) ⓘPlunkett Mine, Monteagle Township, Hastings Highlands Municipality, Hastings County, Ontario, Canada
39.4km (24.5 miles) ⓘCairns Mine, Monteagle Township, Hastings Highlands Municipality, Hastings County, Ontario, Canada
45.1km (28.0 miles) ⓘSpectacle Lake mine (Lake mine; Lake quarry), Spectacle Lake (Wolfsden Lake), Dickens Township, Nipissing District, Ontario, Canada
49.8km (30.9 miles) ⓘDavis Mine, Dickens Township, Nipissing District, Ontario, Canada
References
Ellsworth, H. V. (1927) Lyndochite-a new mineral of the euxenite-polycrase group from Lyndoch Township, Renfrew County, Ontario. American Mineralogist, 12 (5) 212-218
Spence, Hugh S. (1930) Pegmatite minerals of Ontario and Quebec. American Mineralogist, 15 (9) 430-450
Hogarth, D.D.; Steacy, H.R.; Rose, E.R.; Moyd, Louis (1982) Some Classic Mineral Localities of Southeastern Ontario. The Mineralogical Record, 13 (4). 197-203
Ercit, T.S. (1994) The geochemistry and crystal chemistry of columbite-group minerals from granitic pegmatites, southwestern Grenville Province, Canadian Shield. The Canadian Mineralogist 32:421-438
 
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