4822 Tridymite, Tardree Mountain, Co. Antrim, Northern Ireland October 5, 2019 Steve Co. Antrim Northern Ireland United Kingdom Richard Bell
Europe Germany 7102 Tridymite, Bellerberg volcano, Ettringen, Mayen, Eifel, Rhineland-Palatinate, Germany October 5, 2019
New Mexico North and Central Americas United States 5787 Tridymite, Titanite, “Pyrobole”, Animas Creek, Caballo, Sierra Co., New Mexico, USA July 18, 2022
Australasia Australia Victoria ncat JP3283 Tridymite, Aegirine-Augite, Eastern Hill, Mount Anakie, Anakie, City of Greater Geelong, Victoria September 23, 2019
Europe Germany 2256 Cordierite, Mullite, Hematite, Tridymite, Bellerberg, Eifel Mountains, Germany September 22, 2019
