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Black Rapids Mine, Lyndhurst area (Black Rapids area), Lansdowne Township, Leeds and Grenville Co., Ontario, Canada

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Latitude & Longitude (WGS84): 44° 30' 38'' North , 76° 3' 45'' West
Latitude & Longitude (decimal): 44.51056,-76.06250
GeoHash:G#: drcvjnuuz
Locality type:Mine
Köppen climate type:Dfb : Warm-summer humid continental climate


Quartz crystals, some of them over 30cm long and doubly terminated, have been mined by Quartz Crystals Mines Limited starting in 1951, both from open pit and underground workings, in a breccia zone in gneiss.


Mineral List


4 valid minerals.

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Neoproterozoic - Mesoproterozoic
541 - 1600 Ma



ID: 624998
Mafic to ultramafic plutonic rocks

Age: Proterozoic (541 - 1600 Ma)

Comments: Grenville Province Central Metasedimentary Belt

Lithology: Diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks

Reference: Ontario Geological Survey. 1:250 000 scale bedrock geology of Ontario. ISBN 978-1-4435-5705-4. Miscellaneous Release–Data 126 - Revision 1. [1]

Ectasian
1200 - 1400 Ma



ID: 3184628
Mesoproterozoic crystalline metamorphic rocks

Age: Ectasian (1200 - 1400 Ma)

Lithology: Crystalline metamorphic rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License



This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Ontario Ministry of Northern Development and Mines MDI Number: MDI31C09SE00005
Ann P.Sabina (1967), Rocks and Minerals for the Collector; Kingston,Ontario to Lac St.Jean, Quebec. GSC Paper 67-51

Mineral and/or Locality  
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