Source special issue: mineral-collections-in-california, PDF page: 282. Label: Strontianite on fluorite, 6.1 cm, from the Minerva No. 1 mine, Cave-in-Rock, Hardin County, Illinois.

Origin: Minerva No. 1 mine, Cave-in-Rock, Hardin County, Illinois

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.

Unknown owner

Unknown previous owners

Earth

Origin