Colorado North and Central Americas United States ncat JP1565, Anatase, Quartz, Muscovite, Silver Mountain Mine, Ouray District (Uncompahgre District), Ouray Co., Colorado, USA September 23, 2019
Asia Japan ncat AA5 Muscovite after Cordierite-Indialite intergrowth, Kameoka City, Kyoto Prefecture, Honshu Island, Japan January 13, 2023
