This Colored Bismuth is approximately 2 1/2"L x 1"T x 2"D. One of a Kind piece. Bismuth is a native element. Peru is one of the world's major sources. Native crystals are extremely rare. These crystals are grown in our labratory in the United States. Scarce as silver, heavier than lead, one cubic foot of bismuth would weigh over 600 lbs. It is classified as a semi-precious semi-metal. Non-toxic to humans, bismuth is used in both medicine and cosmetics. Applications in inks, paints, free-machining steels and fire sprinklers are other uses. This mineral helps cover and protect us; is read by some and worn by others, yet remains unknown by most.