7160 Sulphur, Hyalite Opal, Lake Rotokawa, Taupo, Waikato, North Island, New Zealand October 5, 2019 Steve Australasia New Zealand ex Joan Lamond Collection, ex Judy Rowe. Sulphur not on sinter matrix.
Nevada North and Central Americas United States 1769 Sulphur, Steamboat Springs, Washoe Co, Nevada, USA September 22, 2019
Australasia New Zealand ncat JR10 Sulphur, Lake Rotokawa, Wairakei, Taupo District, Waikato Region, New Zealand November 24, 2023
Australasia New Zealand ncat JR10 Sulphur, Lake Rotokawa, Wairakei, Taupo District, Waikato Region, New Zealand November 24, 2023
