We were so excited to come across a vendor in Tucson who carves these exquisite skulls. They're from Indonesia, and only come to the states once a year (for the Tucson Gem Show). We stocked up!

This is the sweetest little skull. It looks mostly like rainbow moonstone (without the black) except that it has a lot of blue flash and sparkle to it. You can see the flash in the last picture before the measurement. It is about 1" long and is 16.2g.