4822 Tridymite, Tardree Mountain, Co. Antrim, Northern Ireland October 5, 2019 Steve Co. Antrim Northern Ireland United Kingdom Richard Bell
Australasia New Zealand ncat JP1411 Tridymite, K Trig basalt, Poihipi Road, Taupo District, Waikato Region, North Island, New Zealand October 8, 2019
Co. Antrim Northern Ireland United Kingdom 0119 Tridymite, Tardree Forest Old Quarry, near Antrim Town, Co. Antrim, Northern Ireland September 18, 2019
New Mexico North and Central Americas United States 5789 Tridymite, Truth or Consequences, Sierra County, New Mexico, USA July 18, 2022
North and Central Americas Oregon United States 5510 Ilmenite, Enstatite, Summit Rock, Klamath Co., Oregon, USA October 5, 2019
