Siderite and Chalcopyrite | Barras-Gautier-Min.https://static.wixstatic.com/media/daf8af_798ffc58c0b94736a8260c33eb4d4bdd~mv2.jpg/v1/fit/w_500,h_500,q_90/file.jpg Dimensions: 11.8 x 6.1cmLocation: Kaiwu Mine, Qing lung (Hezhang), Guizhou Prov. ChinaVery few Siderites of this quality were discovered, we only had 3 pieces of this level, associating an exceptional gem with a color and brilliance, unusual for this mineral. These 3 best specimens were found at the very beginning of the discovery (2008) of this small deposit. The iridescent chalcopyrite sphenohedrons bring a very beautiful contrast to this excellent collectors item. Published in the Mineral Kingdom N°166. Ref:0389 Dimensions without the acrylic base, which is supplied with the mineralogical specimen.The mineral is not glued to the base (soft putty).