Show sample as: 72-frame QuickTime VR or 360-frame QuickTime movie loop.    My periodic table poster is now available! Manganite. Description from the source: Manganite (Mn+3 O (OH) mon.), Ilfeld, Harz, Germany. Isolated, terminated black crystals. 1,3x0,6x0,5 cm the bigger; 3 g all. Source: Simone Citon Contributor: John Gray Acquired: 28 January, 2009 Text Updated: 29 January, 2009 Price: Trade Size: 0.5" Composition: MnO(OH)