Oxides[96 from 99] Chalcedony Grey minerak with straw-colored colour. There are cavities on the surface, leaching by pink mineral. there are petrographers on the surface.
The name, a brief visual description:
Chalcedony
Grey minerak with straw-colored colour. There are cavities on the surface, leaching by pink mineral. there are petrographers on the surface.
Sample size:
Shingle. 12х10х7 cm. 0,92 kg.
Place of sampling:
Maymecha river, Plato-Putorana
