Fragment of transparent sphalerite- cleophane crystal convenient for cutting

 

Fragment of sphalerite- cleophane crystal with size 29 x 19 x 5 mm – weight 4,52  grams. The specimen is completely transparent, and the internal part could be seen well through 2 parallel cleavage surfaces. The colors are light-green to yellow-green. The internal part is clean of inclusions. Pictures are taken in halogen light with white background and in transmitted (back) cold LED light. On every picture is indicated the kind of light used for illumination.