5553 Topaz, Opal, Conca Cannas quarry, Masullas, Sardinia, Italy March 23, 2018 Steve Europe Italy Prismatic and acicular topaz crystals, with opal coating tridymite, and also capping one of the topaz crystals, from the Conca Cannas quarry, Masullas, Mt. Arci, Oristano Province, Sardinia, Italy. Click for full sized image…
Asia Japan 15038 D23-1 Hokkaidoite, Opal, Shikaribetsu Lake, Shikaoi (Shikaoi-Chō), Kato District, Tokachi Subprefecture, Hokkaidō Prefecture, Japan July 30, 2024
Australasia Australia Victoria ncat VHD10, Topaz, Quartz Creek, Quartz Creek Track, Neerim, Baw Baw Shire, Victoria November 17, 2019
New Mexico North and Central Americas United States ncat JP881, Spessartine, Topaz, Quartz, East Grants Ridge, Cibola Co., New Mexico, USA September 23, 2019