These Charoite Beads are shaped in a rectangular nugget fashion. They are 8 x 10mm give of take a smidge. They are deep in color naturally. Each bead has a knot between it for protection purposes. Semi-precious Charoite is an unusual mineral of rare occurrence that is only found in the Chara River area of Siberia. It has shades of violet and deep purple with veins of black, gray, and white. It is said that putting Charoite gem stones under your pillow at night will chase away the fears that appear in your dreams.