Makarochkinite, Quartz, K Feldspar
Pit No. 400, Argayashsky District, Chelyabinsk Oblast, Russia
Almost compact sample of coarse-granular black Makarochkinite from its type locality. Associating minerals are glassy Quartz and yellowish K-Feldspar. Analytical data are available on daughter photo. Pavel M. Kartashov collection and scan.
© Pavel M. Kartashov collection & photo