This is a truly awesome variety of Celestine,my personal favorite,tied with Ohio Celestine...it's got a wonderful luster and many rainbows and great internal luster,also they have wonderful etchings and nearly ever part is fully terminated or rehealed..the UV calcite really helps show that is certain instances...these Celestine come from Monroe county Michigan and from a new location.they are rare and hard to get nice ones.and the new UV calcite combos are world class.this specific piece weighs 121.7 grams and is 3 1/4 inch by 1 1/2 by 1 1/4 approx...this piece has tiny little calcites inside and some on the outside,it's in near perfect condition,I can only see one small nick..enjoy!!