2978 BURKEITE, Searles Lake, Trona, San Bernardino County, California, U.S.A.

September 28, 2019 Pendleton California North & Central Americas United States

Source D.Shannon, 1990

0621 CALCITE, Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia

0621 CALCITE, Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia

September 28, 2019

3240 BOBIERRITE, Zheleznyi Mine, Kovdor Massif, Kola Peninsula, Murmanskaja Oblast, Northern Region, Russia

3240 BOBIERRITE, Zheleznyi Mine, Kovdor Massif, Kola Peninsula, Murmanskaja Oblast, Northern Region, Russia

September 28, 2019

3838 DOLOMITE, Solobral Ravine, Teruel, Aragon, Spain

3838 DOLOMITE, Solobral Ravine, Teruel, Aragon, Spain

September 28, 2019

4150 LIBERITE, Xianghualing Mine, Linwu County, Chenzhou Prefecture, Hunan Province, China

4150 LIBERITE, Xianghualing Mine, Linwu County, Chenzhou Prefecture, Hunan Province, China

September 28, 2019