Secondary mineral in the oxidized zone of chlorine-rich lead deposits.
IMA Status:
Valid Species (Pre-IMA) 1886
Locality:
Beatriz, Herminia, Santa Ana, and San Rafael mines, Sierra Gorda district, southwest of Calama, Antofagasta, Chile. Link to MinDat.org Location Data.
Name Origin:
Named for Caracoles, a town near the Beatriz mine, Chile.