Serpentine refers to a group of green, mottled silicate minerals used for ornamental stone, jewelry, and asbestos, or describes something winding, snake-like, and treacherous… Serpentine minerals include antigorite, chrysotile, and lizardite, which are commonly found in greenish, brownish, or yellow hues. They are hydrated magnesium silicates that form in metamorphic rocks. Size : 6 inches Weight : 550 grams