2183 OPAL-AG, Yowah Opal Field, Poroo Shire, Queensland, Australia

September 28, 2019 Pendleton Australasia Australia Queensland

Source C.Kovac, 2011

1806 HELLANDITE-(Y), Evans-Lou Mine, Lac Saint-Pierre, Val-des-Monts, Quebec, Canada

Canada North & Central Americas

1806 HELLANDITE-(Y), Evans-Lou Mine, Lac Saint-Pierre, Val-des-Monts, Quebec, Canada

September 28, 2019

4279 GRANDIDIERITE, Cap Andrahomana, Analapatsy Commune, Taolanaro District, Anosy, Madagascar

Africa Madagascar

4279 GRANDIDIERITE, Cap Andrahomana, Analapatsy Commune, Taolanaro District, Anosy, Madagascar

September 28, 2019

3619 CALCITE, Berry Materials Corp. Quarry, North Vernon, Jennings County, Indiana, U.S.A.

Indiana North & Central Americas United States

3619 CALCITE, Berry Materials Corp. Quarry, North Vernon, Jennings County, Indiana, U.S.A.

September 28, 2019

5849 OSARIZAWAITE, Silver Hill Mine, Silver Hill, Silver Hill District, Pima County, Arizona, U.S.A.

Arizona North & Central Americas United States

5849 OSARIZAWAITE, Silver Hill Mine, Silver Hill, Silver Hill District, Pima County, Arizona, U.S.A.

September 28, 2019