ncat OS003 Amethyst, Andilamena Quartz Quarries, Andranotokana Massif, Andilamena, Alaotra-Mangoro, Madagascar May 3, 2023 Steve Africa Madagascar Japan Law Twin 19x15x8mm. Click on the image below for a higher resolution version.
Australasia Australia New South Wales ncat EA4 Kutnohorite, Quartz, Pyrite, Calcite, North Mine (North Broken Hill Mine; NBH Mine), Broken Hill, Broken Hill district, Yancowinna Co., New South Wales November 25, 2024
Mexico North and Central Americas 1778 Fluorite, Quartz, Ojuela Mine, Mapimi, Mun. de Mapimi, Durango, Mexico September 22, 2019
Australasia Australia Tasmania ncat VHD4, Quartz, Aberfoyle Mine Dumps, Rossarden, Tasmania November 17, 2019