Ancient Indus Valley civilization beads.
These tiny steatite beads were found in the Harappan cemetery and come from an elaborate hair ornament worn by a male individual. Each bead is less than .01 cm long and less than .01 cm diameter.
This bead was thought to be the earliest glass in the subcontinent, dating at least to 1700 BC. Trench 38, Late Harappan Period. However, subsequent analysis in 2008 has determined that it is not glass, but some form of crystalline rock.