These earrings are made from Shadowkite as found naturally. This stone is composed of four individual minerals: chrysocolla, cuprite, malachite and azurite. Chrysocolla is the primary ingredient and provides shadowkite its overall lovely blue color. Cuprite is another material found within the stone. It contains dark flecks of reddish-brown within the rock, offsetting the swirling greens and blues. Azurite and malachite round out the rest. Azurite is a royal blue colored stone, and its influence is readily seen in the material. Malachite, a related gem, stands out with its cool green hues. Also, the distinctive banding for which it’s known is prominently seen in the mottled appearance of the gem. Shadowkite receives its captivating blue and cool green coloration from the presence of copper. In fact, each gem that goes into this material is related to and contains this metal. Generally speaking, gems that are found near copper will be green, blue, or any color in between. The gemstones are 3/8” x 1 5/8" and the earrings are 2 1/2" with the sterling silver ear wires. Your earrings will be shipping in a gift box on a jewelry card stating gems and metal used.