Mineral Evolution Database
Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.
Mineral locality data provided by
mindat.org
Ages for
Chromite
at
Horse Creek Quartz Diorite Pegmatite Occurrence, Sheridan Mining District (Mill Creek Mining District; Wisconsin Mining District), Madison Co., Montana, USA
The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 70Ma - 70Ma at this locality
Locality age
(remote)
Excel ID
Max Age (Ma)
Min Age (Ma)
Dated Mineral
Minerals explicitely stated as having this age
Age applies to these Elements
Dated Locality ID
Dated Locality
Ref
Ref ID
Mo-00186
70
70
Molybdenite, Powellite, Wulfenite
Mo
23236
Madison Co., Montana, USA
Gammons et al. (2006)
MWE25_70