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โ‡ฑ GRN grid region: N31W39


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GRN grid region: N31W39

A grid 'square' of approximately 160km x 160km, part of the Global Reference Network of 19,833 grid cells covering the Earth.


Northeast Corner:
46 30'0'' N , 75 22'47'' W ( 46.5,-75.38 )
Southwest Corner:
45 0'0'' N , 77 21'47'' W ( 45,-77.3633 )

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


198 valid minerals. 4 (TL) - type locality of valid minerals. 3 erroneous literature entries.

Rock Types Recorded


Select Rock List Type

Alphabetical List Tree Diagram

Localities within Grid Area

Quick NavCommoditiesMineral ListRock TypesLocalities
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To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833โ€“844. doi:10.2138/am-2024-9486.
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