2181 OPAL-AG, Coober Pedy Opal Field, Coober Pedy, South Aust., Australia

September 28, 2019 Pendleton Australasia Australia South Australia

Source C.Kovac, 2010

6725 FERBERITE, CASSITERITE, Panasqueira Mines, Covilha, Castelo Branco District, Portugal

Europe Portugal

6725 FERBERITE, CASSITERITE, Panasqueira Mines, Covilha, Castelo Branco District, Portugal

September 28, 2019

3650 FLUORITE, Amber Hill Mine, Scordale, North Pennines, Cumbria, England, U.K.

Cumbria England United Kingdom

3650 FLUORITE, Amber Hill Mine, Scordale, North Pennines, Cumbria, England, U.K.

September 28, 2019

0153 GALENA, SPHALERITE, Krushev dol Mine, Madan ore field, Rhodope Mts., Smolyan Oblast, Bulgaria

Bulgaria Europe

0153 GALENA, SPHALERITE, Krushev dol Mine, Madan ore field, Rhodope Mts., Smolyan Oblast, Bulgaria

September 28, 2019

5800 METAKOTTIGITE, Ojuela Mine, Mapimi, Mun. de Mapimi, Durango, Mexico

Mexico North & Central Americas

5800 METAKOTTIGITE, Ojuela Mine, Mapimi, Mun. de Mapimi, Durango, Mexico

September 28, 2019