Fragment of a Trapezoidal Jade Knife

Black stone

Deep celadon-green and cream-colored, partly calcified nephrite

Light milky brown stone with a few darker veins

Blackish green, fine-grained nephrite

Dark chocolate-brown nephrite with 20th-century inscription

Bluish gray-green stone with dark gray veins and a few buff areas

Translucent, deep celadon-green and opaque, bone-colored nephrite

Mottled green nephrite with long whitish streaks and a brownish area; Middle Yellow River basin, Shenmu Shimao contexts

Translucent celadon-green nephrite with slightly calcified, cream-colored clouds

Black and blackish green stone

Slightly translucent, mottled dark green actinolite

Light gray and pale green, slightly calcified nephrite, polished smooth and glossy