I am sorry the locality was not specified for this very large and impressive Chinese calcite specimen; if it were common material, we would know where it is from, but frankly I have not seen this before. It is a plate of GREEN (very unusual for Chinese calcite) poker-chip crystals, u to 3.5 cm across, of pyramidal form. The greener crystals contrast beautifully with an earlier generation of light gray, smaller calcites. Very showy and impressive! 21.5 x 16.7 x 7.4cm