N'Chwaning Mine, Kuruman, Kalahari manganese field, Northern…

Switzerland 73×53×27mm …

Merelani Hills, Lelatema Mountains, Simanjiro District, Many…

Volodarsk-Volynskii, Zhytomyr Oblast, Ukraine 90×38×2…

Tsumeb Mine, Tsumeb, Oshikoto Region, Namibia 51×55×2…

Batalha Mine, São José da Batalha, Salgadinho, Paraíba, Brazil …

Cerro de Potosi, Potosi City, Potosi Department, Bolivia …

Jewel Pocket, Smoky Hawk Mine, Florissant Area, Trller Count…

Mogok Township, Pyin-Oo-Lwin District, Mandalay Region, Myan…

Pederneira Mine, São José da Safira, Minas Gerais, Brazil …