Pedra Inca cab (Inca stone)
(Chalcedony with copper)
Of the nearly 80 copper mines in Bolivia, only one comes out this material.
We have directly provided the mine owner
It is a new material in gemology and has no name, it is a naturally chalcedony colored by copper salts and inclusions of native copper. It is a very suitable very hard and resistant material for jewelry.
We are not aware that there is a similar material on the market therefore could also be considered a rare and gem collection.
We have called Inca stone, because it is from Bolivia and had been used in the antguedad
All these gems, have been carved in our workshop.