Obsidian: Pieces from the ChaakkÕax complex. Top row, blade fragments from the Early ChaakkÕax (Op 1, Z 59; Op 1, Z 59; and Op 1, Z 58). The first blade is San Martin Jilotepeque obsidian. Bottom row, blade fragment from ChaakkÕax (Op 1, Z 57) and two from the Late ChaakkÕax (Op 1, Z 56 and Op 1, Z 160). The first and third blades on the bottom row are San Martin Jilotepeque. Top OB# 012, OB# 030, OB# 029; Bottom OB# 106, OB# 057, and OB# 091
