Alabandite or alabandine is a rarely occurring manganese sulfide mineral. It crystallizes in the cubic crystal system with the chemical composition Mn2+S and develops commonly massive to granular aggregates, but rarely also cubic or octahedral crystals to 1 cm. == Etymology and History == Alabandite was first described in 1784 by Franz-Joseph Mül... Found on http://en.wikipedia.org/wiki/Alabandite