Jadeite is the name for a kind of pyroxene rock ... Both are tough, fine-grained rocks that lend themselves to carving. Earlier this month in Tucson, Ariz., during the annual gem shows in that ...

The beauty of the green stone (Jadeite) meant that it was highly valued as a trade object. It was found in Jersey about 1,000 miles from where it was made. Although stone axes were produced ...