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
Cold Spring Mine, Boulder County Tungsten 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 Cold Spring Mine, Boulder County Tungsten Mining District, Boulder County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:662440
Long-form Identifier:1:3:662440:8
GUID (UUID V4):0
Nearest other occurrences of Ankerite
11.2km (7.0 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
11.6km (7.2 miles) ⓘCorning Tunnel (Cold Spring; Alamakee; St. Joe; Blackhawk; Cash Occurrence), Gold Hill Mining District, Boulder County, Colorado, USA
13.5km (8.4 miles) ⓘInterocean Mine, Gold Hill Mining District, Boulder County, Colorado, USA
13.8km (8.6 miles) ⓘJohn Jay Mine, Jamestown Mining District, Boulder County, Colorado, USA
16.3km (10.1 miles) ⓘBlue Jay Mine, Jamestown, Jamestown Mining District, Boulder County, Colorado, USA
17.1km (10.6 miles) ⓘBrown Spar (Browns Spar; Brownspar), Jamestown Mining District, Boulder County, Colorado, USA
17.4km (10.8 miles) ⓘEmmett Mine, Jamestown, Jamestown Mining District, Boulder County, Colorado, USA
21.2km (13.2 miles) ⓘMena Mine (Hoffmeister Homestead Prospect; Black Judge Shaft), Ralston Buttes Mining District, Jefferson County, Colorado, USA
23.1km (14.4 miles) ⓘSchwartzwalder Mine (Ralston Creek Mine), Ralston Buttes Mining District, Jefferson County, Colorado, USA
24.8km (15.4 miles) ⓘLake Tunnel - Lower, Idaho Springs Mining District (Virginia Mining District), Clear Creek 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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