1. References

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 a specific gravity of 4.96. It has a metallic luster and its color is jet black, with light brown streaks.

References

• Mindat.org - Abswurmbachite
• Webmineral.com - Abswurmbachite
• Handbook of Mineralogy - Abswurmbachite

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