Abswurmbachite is a copper manganese silicate mineral ((Cu,Mn2+)Mn3+6O8SiO4). It was first described in 1991 and named after Irmgard Abs-Wurmbach (born 1938), a German mineralogist. It crystallizes in the tetragonal system. Its Mohs scale rating is 6.5 and its specific gravity is 4.96. It has a metallic luster and its color is jet black, with light brown streaks.
See also List of minerals List of minerals named after people
References
Mindat.org – Abswurmbachite Webmineral.com – Abswurmbachite Handbook of Mineralogy – Abswurmbachite