Fig. 2: Sampling locations of the objects.
From: Chemical evidence for the spread of lac colorant in Xinjiang from the 2nd to 9th centuries CE
a Y1 from the Yingpan Cemetery; b A2 from 60TAM336, c A3 from 72TAM187, and d A4 from 73TAM227, from the Astana Tombs; e K1, f K2, g K3, and h K4 from Cave 171 in the Kizil Grottoes; and i S1 from Cave 1, j S2 from Cave 9, and k S3 from Cave 14, in the Simsim Grottoes.
