AAA quality, rare find translucent perfect bullseye yellow Aragonite stalactite slice. Polished on front and rear sides.Aragonite is a naturally occurring polymorph of calcium carbonate which differs from calcite in its crystal lattice structure. A delicate coral like form of Aragonite is known as Flos Ferri, and the more common twinned hexagonal prismatic forms are known as Aragonite Sputnik.Weight: 398.2 grams, Dimensions: 6 x .5 x 5 inches