This very nice cleiophane (a sphalerite low in iron and manganese) from Bulgaria is a yellow green color. On one side the crystals are larger, on the other, they are more lustrous. There is a missing crystal here or there. The back side is very translucent, approaching facet grade. The structure is nice and the tiny white quartz crystals on one side add to the aesthetics of the piece. 6.5 x 4.5 x 2.5 cm with crystals to about 0.7 cm