The Museum of Anthropology has one of North America's premier ethnobotanical collections, including both archaeologically recovered specimens and comparative materials. The zooarchaeological collections are focused exclusively on the Near East, Mexico, Peru, Europe, and North America; the section related to early domestication of Near Eastern animals is second to none. Finally, the Museum also holds (in conjunction with the Bentley Historical Library) the samples and records of UMMA's INAA obsidian-sourcing studies conducted by James B. Griffin and chemist Adon Gordus, and the records of the radiocarbon-dating laboratory run for many years at Michigan by James B. Griffin and physicist H. Richard Crane. Analytical Laboratory - The Analytical Laboratory Collections was designed to curate non-artifact materials, mostly geological in nature, that were collected or studied by Museum curators and researchers. The specimens are generally from known sources of raw materials that can be used with a petrographic microscope to match sources with the minerals in artifacts, especially ceramics. Ethnobotany Laboratory - The Ethnobotany Laboratory is unique because of its extensive collection of archaeological and systematic comparative plant parts from around the world and the ethnographic examples of how these plants are collected, stored, processed, and utilized by traditional cultures. Zooarchaeology Laboratory - The comparative collections are the heart of the Zooarchaeology Laboratory and its activities. They include 378 skeletons of recent specimens, representing fish, amphibians, reptiles, birds, and mammals from North America, Middle America, South America, the Middle East, Asia, Europe, and Africa. The collection also includes several hundred archaeological specimens that are retained for comparative purposes. The lab controls large collections of archaeological faunal remains from several important sites (e.g., Naomikong Point and Juntunen, Michigan; Ayacucho, Peru; Chagha Sefid and Farukhabad, Iran; Hallan Chemi, Turkey). The collections also include a unique collection of northeastern North American mollusks and a synoptic collection of fish scales.