20055 Tridymite, Spring Hill, Macedon Ranges, Victoria May 26, 2020 Steve Australasia Australia Victoria Pale greenish rounded pseudohexagonal twins of tridymite with goethite(?). Oxidation due to the breakdown of either ilmenite or magnetite. You can see the hexagonal outline of the tridymite here and there.
Australasia New Zealand ncat JP0248 Hematite, Tridymite, Taupo District, Waikato Region, North Island, New Zealand October 8, 2019
Australasia Australia Victoria ncat JP3282 Tridymite, Rutile, Magnetite, Phlogopite, Spring Hill, Macedon Ranges, Victoria September 23, 2019
Co. Antrim Northern Ireland United Kingdom 4822 Tridymite, Tardree Mountain, Co. Antrim, Northern Ireland October 5, 2019