This is a Spectrolite 20 inch single strand necklace. Spectrolite is a very special, gem quality variety of Labradorite that can show a full spectrum of rainbow colors that can only be found in Finland. It also has a very dark, black base, and is considered a semi precious gem, whereas Labradorite generally is not. Sarah included the following beads. Czech glass, sterling silver, Hematite, China glass, Swarovski crystal, cultured pearls, Labradorite. The pendant is 2 and 3/8 inches long and 3/4 of an inch wide. Some of the beads are in the shape of flowers and shells. There are matching earrings available at checkout. Great piece!