Vote for your favorite mineral in #MinCup26! - Monazite-(Ce) vs. Andalusite
It's a showdown with rare earth elemental ore Monazite-(Ce) and index mineral Andalusite.
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Ankerite from
John Jay Mine, Jamestown Mining District, Boulder County, Colorado, USA


Locality type:Mine
Classification
Species:Ankerite
Formula:Ca(Fe2+,Mg)(CO3)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Ankerite data
Locality Data:Click here to view John Jay Mine, Jamestown Mining District, Boulder County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:660155
Long-form Identifier:1:3:660155:3
GUID (UUID V4):0
Nearest other occurrences of Ankerite
3.7km (2.3 miles) ⓘBrown Spar (Browns Spar; Brownspar), Jamestown Mining District, Boulder County, Colorado, USA
3.9km (2.4 miles) ⓘEmmett Mine, Jamestown, Jamestown Mining District, Boulder County, Colorado, USA
3.9km (2.4 miles) ⓘBlue Jay Mine, Jamestown, Jamestown Mining District, Boulder County, Colorado, USA
4.9km (3.0 miles) ⓘCorning Tunnel (Cold Spring; Alamakee; St. Joe; Blackhawk; Cash Occurrence), Gold Hill Mining District, Boulder County, Colorado, USA
6.6km (4.1 miles) ⓘInterocean Mine, Gold Hill Mining District, Boulder County, Colorado, USA
6.6km (4.1 miles) ⓘIngram mine (Valley Forge Occurrence; Critic and Railroad Boy; Sunshine; Three Brothers; Atchison; Belle; Golden Eagle; Melvina; Baron; Richmond), Gold Hill Mining District, Boulder County, Colorado, USA
13.8km (8.6 miles) ⓘCold Spring Mine, Boulder County Tungsten Mining District, Boulder County, Colorado, USA
29.7km (18.4 miles) ⓘMena Mine (Hoffmeister Homestead Prospect; Black Judge Shaft), Ralston Buttes Mining District, Jefferson County, Colorado, USA
31.2km (19.4 miles) ⓘSchwartzwalder Mine (Ralston Creek Mine), Ralston Buttes Mining District, Jefferson County, Colorado, USA
37.6km (23.4 miles) ⓘAscension Mine (Nare Lease; Nair Prospect), Ralston Buttes Mining District, Jefferson County, Colorado, USA
References
Lovering, T.S., Goddard, E.N. (1950) Geology and ore deposits of the Front Range, Colorado. Professional Paper 223. US Geological Survey doi:10.3133/pp223
 
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