chert « Back to Glossary IndexA very fine grained version of silica deposited with or without microfossils. Related Articles: 16 Energy and Mineral Resources3 Minerals5 Weathering, Erosion, and Sedimentary Rocks6 Metamorphic Rocks8 Earth History« Back to Glossary Index Author: Chris Associate Professor, Salt Lake Community College, Salt Lake City, Utah View all posts by Chris