Opalescent quartz with manganese dendrites, Brazil.

120,00

Polished section of opalescent quartz (cacholong) showing beautiful black Manganese dendrites, from Brazil.
The appearance is reminiscent of “Mousse” agates. This specimen comes from the mineral collection of Deyrolle, a naturalist dealer in Paris, and is supplied with its original label, which dates from 1950/1970.