ncat JP1411 Tridymite, K Trig basalt, Poihipi Road, Taupo District, Waikato Region, North Island, New Zealand October 8, 2019 Steve Australasia New Zealand
Australasia Australia Victoria ncat JP3282 Tridymite, Rutile, Magnetite, Phlogopite, Spring Hill, Macedon Ranges, Victoria September 23, 2019
Australasia New Zealand 3036 Hematite, Phlogopite, Augite, Tridymite, Henderson’s Quarry, Mt Ngongotaha, near Rotorua, North Island, New Zealand October 3, 2019
Co. Antrim Northern Ireland United Kingdom 4822 Tridymite, Tardree Mountain, Co. Antrim, Northern Ireland October 5, 2019