Both are tough, fine-grained rocks that lend themselves to carving. Earlier this month ... but some virtually indistinguishable from the imperial jade of Myanmar, said Richard W.

An iron cauldron unearthed from the Western Xia Imperial Tombs Nestled at the foot of the Helan Mountain, 30 kilometers west ...

Now, excavations at the site have revealed ancient structures — and a “unique” carved stone ... is commonly used as “jade,” ...

Now, excavations at the site have revealed ancient structures — and a “unique” carved ... “jade,” but different from the mineral jadeite. Both are green in color, but jadeite has the ...