7102 Tridymite, Bellerberg volcano, Ettringen, Mayen, Eifel, Rhineland-Palatinate, Germany October 5, 2019 Steve Europe Germany ex Joan Lamond Collection
Australasia New Zealand 5055 Pseudobrookite, Hematite, Tridymite, Henderson’s Quarry, Mt Ngongathaha, Rotorua, New Zealand September 29, 2019
Australasia Australia Victoria ncat JP3282 Tridymite, Rutile, Magnetite, Phlogopite, Spring Hill, Macedon Ranges, Victoria September 23, 2019
Australasia New Zealand ncat JP1411 Tridymite, K Trig basalt, Poihipi Road, Taupo District, Waikato Region, North Island, New Zealand October 8, 2019
New Mexico North and Central Americas United States 5787 Tridymite, Titanite, “Pyrobole”, Animas Creek, Caballo, Sierra Co., New Mexico, USA July 18, 2022
