A SECOND OCCURRENCE OF MUONIONALUSTAITE, NI3CL2(OH)4·4H2O, THE NI ANALOGUE OF A SOREL CEMENT PHASE

This paper describes a new occurrence of muonionalustaite from small light green spheres on the „zaratite“ sample from the Lord Brassey Mine. The amount of material is very small and in total less than a cubic millimetre. Muonionalustaite is the natural analogue of synthetic Ni3Cl2(OH)4·4H2O and the Ni-analogue of synthetic Mg3Cl2(OH)4·4H2O.