There is an error in Newsletter 83 (Bosi et al., (Reference Bosi, Hatert, Pasero and Mills2025) for IMA No. 2023-020a Metaheimite. The crystal system is given as “Orthorhombic”, instead of “Monoclinic”. The correct entry is:
IMA No. 2023-020a
Metaheimite
PbCu2(AsO4)(OH)3
Mhim
Grosses Chalttal deposit, Mürtschenalp district, Glarus, Switzerland (47°04′09.9″ N, 9°11′26.5″ E)
Thomas Malcherek*, Boriana Mihailova, Jochen Schlüter, Philippe Roth and Nicolas Meisser
*E-mail: [email protected]
New structure type
Monoclinic: P21/n; structure determined
a = 5.8347(4), b = 7.7528(6), c = 13.8899(9) Å, β = 90.018(3)°
7.070(43), 3.863(67), 3.139(100), 2.926(38), 2.778(37), 2.673(59), 2.546(41), 1.609(44)
Type material is deposited in the collections of the Mineralogical Museum, Leibniz-Institut zur Analyse des Biodiversitätswandels, Grindelallee 48, D-20146 Hamburg, Germany, registration number ro-3702
How to cite: Malcherek, T., Mihailova, B., Schlüter, J., Roth, P. and Meisser, N. (2025) Metaheimite, IMA 2023-020a. CNMNC Newsletter 83, Mineralogical Magazine, 89, https://10.1180/mgm.2025.7