Rock particles with a size of between 1/16mm and 2mm. Related Articles: Some fossil finds in the Hastings areaGeo junkets (Part 1): New Zealand, North IslandUrban geology (Part 4): Productid brachiopods in Amsterdam and UtrechtShining hill in the Arizona desertBook review: Introducing Geology: A guide to the world of rocks (3rd edition), by Graham Park« Back to Glossary Index