7173 Mullite, Bellerberg volcano, Ettringen, Mayen, Eifel, Rhineland-Palatinate, Germany October 5, 2019 Steve Europe Germany ex Joan Lamond Collection.
Australasia New Zealand ncat JP0245 Mullite, Rangatira Point (Ponui Point), Lake Taupo, Taupo District, Waikato Region, North Island, New Zealand October 8, 2019
Europe Germany ncat JP1298 Mullite, Bellerberg volcano, Ettringen, Mayen, Eifel, Rhineland-Palatinate, Germany October 11, 2019
Europe Germany ncat JP2830 Mullite, Wannenkopfe, Ochtendung, Polch, Eifel, Rhineland-Palatinate, Germany October 11, 2019
