Fluorite, Calcite, Minerva No. 1 Mine, Cave-In-Rock, Hardin County, Illinois, USA - Minerva No. 1 Mine, USA

No, this is not cuprite! - EarthWonders Newsletter #7

specimen
Details
ColorsBrown
SizeSmall
Dimensions6.2 x 5.6 x 3.3 cm
Species
Description
Very nice well terminated yellow calcites sit on a matrix of blue and purple zoned fluorite underneath. Calcite specimens from the Minerva are often overlooked for fluorites, but this specimen presents a nice sampling of both species. An American Classic!
Known provenanceKnowing where your specimen comes from and who owned it adds to its story and value. Good provenance helps prove it's authentic and preserves important details about its discovery.
Arvada, Colorado, USA

Unknown previous owners

Earth

Origin