We have a fine large Russian calcite twin in this set of auctions, so why not a Chinese one! This is a glowing, golden, lustrous crystal, complete and terminated all around, with the reentrant (twining plane) clearly visible. The crystal has a few TINY bruises (you can oil them out, we as a rule do not do this before selling things). 11.2 x 10.7 x 8.4cm