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.

Chert

Naturalist Rudy Mancke, the late host of SCETV's long-running NatureScene, shared his knowledge of plants and wildlife for nearly 25 years on NatureNotes. These 1-minute snippets offer you a chance to find out about diverse topics having to do with the natural world. From the inner workings of our world's ecosystems to plants & animals unique to South Carolina, you'll learn more about the world around you on NatureNotes.

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Naturalist Rudy Mancke, the late host of SCETV's long-running NatureScene, shared his knowledge of plants and wildlife for nearly 25 years on NatureNotes. These 1-minute snippets offer you a chance to find out about diverse topics having to do with the natural world. From the inner workings of our world's ecosystems to plants &amp; animals unique to South Carolina, you'll learn more about the world around you on NatureNotes.

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Chert

Chert