Archaeobotanical Collection: About Phytoliths
http://research.history.org/Archaeological_Research/Collections/CollArchaeoBot/PhytoFAQs.cfmArticle by Steve Archer on phytoliths, silica casts of plant cells or spaces between cells in plants.
Submitted in section: Archaeology: Topics: Archaeobotany: Archaeobotanical Collection: About Phytoliths