ncat JP1411 Tridymite, K Trig basalt, Poihipi Road, Taupo District, Waikato Region, North Island, New Zealand October 8, 2019 Steve Australasia New Zealand
Europe Germany 2256 Cordierite, Mullite, Hematite, Tridymite, Bellerberg, Eifel Mountains, Germany September 22, 2019
Australasia New Zealand 4404 Osumilite-(Mg), Hematite, Tridymite, Hendersons Quarry, Mt Ngongotaha, North Island, New Zealand November 15, 2018
Australasia Australia Victoria ncat JP3283 Tridymite, Aegirine-Augite, Eastern Hill, Mount Anakie, Anakie, City of Greater Geelong, Victoria September 23, 2019
North and Central Americas Oregon United States 5510 Ilmenite, Enstatite, Summit Rock, Klamath Co., Oregon, USA October 5, 2019
