A NEOLITHIC JADE 'CLOUD' OPENWORK PENDANT Hongshan culture, circa 3500-2500 B.C.A NEOLITHIC JADE 'CLOUD' OPENWORK PENDANTHongshan culture, circa 3500-2500 B.C.The flat plaque with a circular aperture off-center below a half-crescent shape opening, flanked by a pair of slits with narrow borders at either side separating the 'C'-shaped hooks above and below, drilled with a small hole on the short flat border for suspension, the gently undulating surface with wide shallow grooves following the design, the edges subtly honed all around, the light-green stone with streaks of dark green markings and showing mottled cream-color on one side. 5 3/8in (13.6cm) length新石器時期 紅山文化 雲形玉飾An openwork jade pendant with two circular apertures and crescent slits paired at the center, excavated at the large Hongshan temple and stone mound burial complex at Niuheliang in Liaoning province, is illustrated in Wenwu, 2008, No. 10, p. 26, col. pl. 26 and in a line drawing on p. 28, pl. 32, no. 3.Compare also the fragment of a Hongshan jade pendant in the National Museum of History, Taipei, illustrated by Johnson and Chan in the catalogue of the special exhibition organized by the San Antonio Museum of Art, 5,000 Years of Chinese Jade, San Antonio, 2011, p. 36, no. 1.