CHRYSOCOLLA: Chrysocolla is the teaching stone, that encourages one to speak one's highest knowledge, which makes it a valuable ally for those who speak for a living. It stimulates the throat chakra for clear communication through an empathic connection with consciousness. — This large Chrysocolla chunk of ours with Malachite veins measures 5.5 x 2.5 x 1.75 inches and weighs in at 1 lb. 2.4 oz. Come in to our Uptown Sedona shop to see it, or message us to get it shipped to you.