My periodic table poster is now available! Emmonsite. Description from the source: Emmonsite (Fe2+3 Te3+4 O9 x 2 H2 O tric.), Moctezuma, Sonora, Mexico. Green crust on matrix, rare. 1,1x1x0,7 cm; 4 g with box. Source: Simone Citon Contributor: John Gray Acquired: 13 January, 2010 Text Updated: 13 January, 2010 Price: Trade Size: 0.5" Composition: Fe3Te4O9.2(H2O)