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.
Europe Italy 4672 Stibiconite, Stibnite, Quartz, Valentinite, Sulphur, Le Cetine di Cotorniano Mine, Chiusdino, Siena Province, Tuscany, Italy November 16, 2018
New York North and Central Americas United States 4242 Quartz, Middleville, New York, USA October 4, 2019
Asia China 10056 Wurtzite, Quartz, Yaogangxian Mine, Yaogangxian W-Sn ore field, Yizhang Co., Chenzhou Prefecture, Hunan Province, China October 5, 2019
Europe France 4566 Strengite, Quartz, Le Mazet vein, Echassieres, Ebreuil, Allier, Auvergne, France October 5, 2019