Selenite, also known as Satin Spar, crystals that have been shaped into a cylinder. The colouring is pure white but there may be some clear patches.  Most of the cylinders will stand on their end so would be useful for gridding work.

This stone shows how to resolve lessons & issues that are still being worked on

See more freeforms & slices here

Size: 3.1 - 3.8 cm approx
Weight: 21 - 28 grams approx
Country of origin: North Africa