3766 Cristobalite, Fluorvarulite, Zinkhutte Genna, Letmathe, Germany October 3, 2019 Steve Europe Germany Fluorvarulite not a species – unknown what this is.
Europe Germany 7155 Cristobalite, Caspar quarry, Bellerberg volcano, Ettringen, Mayen, Eifel, Rhineland-Palatinate, Germany October 5, 2019
Europe Germany ncat JP1783 Cristobalite, Mendig, Eifel, Rhineland-Palatinate, Germany October 11, 2019
