Nephrite "hei-tiki" (neck pendant). These are believed to have their own "mana", are handed down as valuable heirlooms, and often given as gifts to seal important agreements. It has also been used for a range of tools such as adzes, as Māori had no metal tools before European contact. Commonly called "greenstone", jade jewellery in Māori designs is widely popular with tourists. Stone is often imported from Canada, China and Siberia, and Ngai Tahu runs a pounamu certification scheme to verify the authenticity of New Zealand stone. Nephrite Nephrite is a variety of the calcium, magnesium, and iron-rich amphibole minerals tremolite
One in Two – Two in One One in Two – Two in One One in Two – Two in One is a live album by American jazz drummer Max Roach and saxophonist Anthony Braxton recorded in 1979 for the Swiss Hathut label. The Allmusic review by Scott Yanow awarded the album 5 stars, stating: "With Roach pushing Braxton, the results are quite adventurous, yet full of joy. Followers of avant-garde jazz can consider this set to be essential." All About Jazz reviewer Chris May noted: "This is music which demands the full attention of the listener to reveal all of its considerable beauty—but it's not "difficult"