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 Australia Victoria ncat JP2864 Tridymite, Magnetite, Rutile, Phlogopite, Spring Hill, Macedon Ranges, Victoria September 23, 2019
Australasia New Zealand 5055 Pseudobrookite, Hematite, Tridymite, Henderson’s Quarry, Mt Ngongathaha, Rotorua, New Zealand September 29, 2019
Australasia Australia Victoria 0855 Tridymite, Augite, Anatase, Trentham, Victoria September 20, 2019
Australasia New Zealand ncat JP0248 Hematite, Tridymite, Taupo District, Waikato Region, North Island, New Zealand October 8, 2019
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