Cavansite | Barras-Gautier-Min.https://static.wixstatic.com/media/daf8af_ac65c583691e451d825466048074d833~mv2.jpg/v1/fit/w_500,h_500,q_90/file.jpg Dimension: 3 x 2.3 cm Origin: Very beautiful and rare quality of gemstone crystals of cavansite forming a dense and luminous piece. Dimensions without the acrylic base, which is supplied with the mineralogical specimen. The sample is not glued to its support (flexible mastic).