Scalenohedral Calcite "Dog's Tooth" - La Cruz Mine, Spain
Contributed by: Daniel C. Montero
minID: 8HV-WL8
Date: May 6th, 2026
Locality: El Cobre vein (El Cobre), Linares, Jaén, Andalusia, Spain (See on Mindat)
Size: 8 x 10 cm
Description:
Scalenohedral calcite "Dog's Tooth" from the La Cruz Mine, El Cobre vein, Linares, Linares-La Carolina district, Jaén, Andalusia, Spain.
The Carthaginians and Romans are some of the peoples who worked the silver, copper and lead work of its rich reefs. The city is marked from its origins by the soul of the mineral. Cástulo, the old Iberian city and capital of Oretania, near the current Linares, and one of the most important cities of Rome. It was the seed where for centuries and centuries an extraordinary mining industry germinated that in the 19th century became the most important in Spain and throughout the world until the end of the 20th century -1991- closes the last large exploitation of the Compañía Minera de la Cruz.
Originally posted by Daniel C Montero on Nature's Rainbows in 2018.
Summary of luminescence responses:
Calcite (Mindat) (RRUFF)
- Fluorescence under Longwave (365nm LED) UV light: Orange
- Fluorescence under Midwave (305nm Lamp/Mercury) UV light: Red
- Fluorescence under Shortwave (254nm Lamp/Mercury) UV light: Red