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.
Mexico North and Central Americas 10045 Quartz, Ojuela Mine, Mapimi, Mun. de MapimÃ, Durango, Mexico October 5, 2019
England United Kingdom 1248 Sphalerite, Quartz, Admiralty Flats, Nentsberry Haggs Mine, Nent Valley, Alston Moor District, North Pennines, North and Western Region (Cumberland), Cumbria, England September 22, 2019
Arizona North and Central Americas United States 0394 Vanadinite, Amethyst, Tonopah-Belmont Mine, Tonopah, Maricopa Co., Arizona, USA November 16, 2018
Georgia (US) North and Central Americas United States 5567 Quartz, Girard, Girard District, Burke Co., Georgia, USA October 5, 2019