Chert
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| Did you know | The firearm had a metal plate that produced a spark when struck with chert. |
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| ID | 696813 |
About Chert
Chert is a hard, fine-grained sedimentary rock composed of crystals of quartz that are very small. Quartz is the mineral form of silicon dioxide. Chert is often of biological origin but may also occur inorganically as a chemical precipitate or a diagenetic replacement.
Chert Photos
