Biconvex Jade Knife

Mottled green, gray, and black nephrite with whitish veins

Yellow and amber-colored stone with dark brown veins

Yellowish green and calcified, cream-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

Pale green and ivory-colored, slightly calcified nephrite

Mottled olive-green and deep russet nephrite

Bluish-green and gray stone with buff markings

Mottled green, bluish green, and buff nephrite

Variegated creamy buff and light brown nephrite with two broad bluish green bands

Gray-green nephrite with light and dark brown cloud-like markings

Nephrite of two shades of celadon-green with cream-colored spots