Dioptase Chrysocolla Malachite Quartz | Barras-Gautier-Min.https://static.wixstatic.com/media/daf8af_2649e4c7faaf4b1abd93ed5534040142~mv2.jpg/v1/fit/w_500,h_500,q_90/file.jpg Sizes: 4 x3.5 x 2.2cm Origin: Renéville, Djoué, Brazzaville, Rep. req. from Congo Most of the paragenese of the site is united in this rare and original quadruple association. A unique piece. Dioptase crystal length 16mm Dimensions without the acrylic base, which is supplied with the mineralogical specimen. The mineral is not glued to the base (soft putty).