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
Calcite
at
Horton Mine (Imperial Mine; Midnight Mine; Silver Chief Mine; True Fissure Mine), Durango & Moorlight Group (Durango & Moonlight Group), Philipsburg Mining District (Flint Creek Mining District), Granite Co., Montana, USA