Figure 4. Holotype specimen of gmalimite. (B) Gmalimite aggregate with pyrrhotite and pyrite inclusions within goethite rim. Reflected light. Gmalimite exhibits characteristic gray-olive color. Fap—fluorapatite, Gh—gehlenite, Gma—gmalimite, Gth—goethite, Py—pyrite, Pyh—pyrrhotite, Zeo—zeolite. — Photo: Galuskina, I.O.; Krüger, B.; Galuskin, E.V.; Krüger, H.; Vapnik, Y.; Murashko, M.; Banasik, K.; Agakhanov, A.A. · CC BY 4.0
Gmalimite
Gmalimite is an IMA-recognized mineral species in the sulfide class, with the chemical formula K₆ Fe²⁺₂₄S₂₇.
It crystallizes in the cubic crystal system (space group Pm-3m). It is a member of the Djerfisherite structural group.
IMA symbol Gma, IMA status: approved, named in 2019.
It is found associated with Distribution From Halamish wadi, southern part of the Hatrurim Complex, Negev Desert, Israel.