Mineral Evolution Database
Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.
Mineral locality data provided by
mindat.org
There are no ages for
Columbite-(Mn)
at
Crooker Gem Pegmatite Quarries (includes Former Crooker Quarry; Blue Pit; Plumbago Prospects; Grand Canyon Prospect; Martin Prospect; Big Blue Prospect; Vandelight Ledge Prospect; Stanley Prospect; Several Unnamed Prospects), Newry, Oxford Co., Maine, USA