Naturenotes With Rudy Mancke
Chert
- Author: Vários
- Narrator: Vários
- Publisher: Podcast
- Duration: 0:01:24
- More information
Informações:
Synopsis
Chert is a hard, fine-grained sedimentary rock composed of microcrystalline or cryptocrystalline quartz, the mineral form of silicon dioxide. Chert is characteristically of biological origin, but may also occur inorganically as a chemical precipitate or a diagenetic replacement, as in petrified wood.
