Covellite is commonly found as a secondary copper mineral in deposits.
These criteria are assessed by the miners during underground and surface gophering for copper minerals.
This process, called "concentrating," separates copper minerals from waste material.
Bisbee is noted for the variety of copper minerals and the high-quality specimens that have been taken from its mines.
Intergrowth with other secondary copper minerals such as chrysocolla is also common.
In one chamber, blue and green speleothems coloured by copper minerals can be seen.
It is an oxidation product of other copper minerals, especially under arid, saline conditions.
One can still find bright green copper minerals on Alderley Edge.
The minerals were found in the centennial mine which is known to yield copper minerals.
It is the first known example of controlled deposition of a copper mineral in an organism.