Home > Mexico IV Ojuela II – January 19 > MS1749 Lotharmeyerite

Lotharmeyerite - Sold

Lotharmeyerite is a nominally a calcium zinc arsenate mineral, originally found at Ojuela. Dunn (1983) named the mineral in honor of chemist Julius Lothar Meyer (1830-1895), who helped develop the periodic table of the elements. Restudy of lotharmeyerite showed that lotharmeyerite belongs to the tsumcorite group (Brugger et al. 2002). Significant Mn3+ substitutes for Zn in the crystal structure (Yang et al. 2012), which imparts its rich red-brown color.

Lotharmeyerite forms 1-2 mm patches of red-brown crystals. Underlying the lotharmeyerite is a mineral related to arseniosiderite, however not fully characterized. A minute 4 mm Mn-bearing adamite completes the assemblage. Found 1981-1982.