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…
Australasia New Zealand ncat JP0271 Tridymite, Hematite, Phlogopite, Titanite, Hendersons Quarry, Mount Ngongotaha, Rotorua District, Bay of Plenty Region (Te Moana-a-Toi), North Island, New Zealand October 8, 2019
North and Central Americas United States Utah 5042 Holfertite, Hematite, Topaz, Holfertite Pit, Starvation Canyon, Thomas Range, Juab Co., Utah September 29, 2019
Australasia Australia Queensland ncat JP1772 Fluorite, Calcite, Opal, Monakoff Mine, Cloncurry, Cloncurry Shire, Queensland May 14, 2023