Pink Cobaltoan Calcite Crystals
Beautifully polished, cobaltoan calcite crystals from the Democratic Republic of Congo.
The pink colour of cobaltoan calcite comes from traces of cobalt within the crystal structure. When a higher concentration of cobalt is present, the shade and depth of colour increase. Colours produced this way are stable and do not fade with normal exposure to light.
Cobalt, which is a relatively rare chemical element, is mined in a limited number of countries. Some of the finest material comes from Congo and Morocco.
Cobalt is one of the world’s most economically important metals. It's a vital component in lithium-ion batteries used in electronic devices and many other applications.
As a type of calcite, these stones are relatively soft and should be handled with care.
In grade-A, these are the last seven cobaltoan calcite tumbled stones we have available.
We also have AAA-grade stones with a mesmerising pink colour.
Bloodstone
