Australasia New Zealand 5613 Cristobalite and Sanidine in Obsidian, Poihipi Road, Taupo, New Zealand December 24, 2018
Australasia New Zealand 0148 Hematite, Cristobalite, Henderson’s Quarry, Mt Ngongathaha, Rotarua, New Zealand September 18, 2019
Europe Germany 7155 Cristobalite, Caspar quarry, Bellerberg volcano, Ettringen, Mayen, Eifel, Rhineland-Palatinate, Germany October 5, 2019
