7442 JL1746 Tridymite, Spring Hill, Victoria July 26, 2021 Steve Australasia Australia Victoria Acquired by Joan Lamond in 1995 from Judy Rowe.
Co. Antrim Northern Ireland United Kingdom 4822 Tridymite, Tardree Mountain, Co. Antrim, Northern Ireland October 5, 2019
Australasia New Zealand 5055 Pseudobrookite, Hematite, Tridymite, Henderson’s Quarry, Mt Ngongathaha, Rotorua, New Zealand September 29, 2019
Australasia New Zealand ncat JP0248 Hematite, Tridymite, Taupo District, Waikato Region, North Island, New Zealand October 8, 2019
Europe Germany 2256 Cordierite, Mullite, Hematite, Tridymite, Bellerberg, Eifel Mountains, Germany September 22, 2019
