Mica Cluster - Unique #5 Mica, also known as Muscovite, has many unique properties that make it spiritually and economically useful. Mica helps one reflect on themselves to spot flaws and help correct them. It is also a good insulator for electrical conductivity. The piece for sale is a large cluster of small round blades that sprout out like leaves. There is mica on all sides of the cluster, with smaller extensions forming in several places. This is a very nice piece for display and admiration. Note: This product is fairly brittle and must be handled with care.