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Waterfall Railway Cutting
Flint is the dark grey to black nodular material commonly found in chalk. It is Cretaceous in age (146-65 million years old). Flint breaks with a pronounced conchoidal (curved) fracture creating sharp edges....
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Monthly Archives: January 2009

January – Flint

Flint is the dark grey to black nodular material commonly found in chalk. It is Cretaceous in age (146-65 million years old). Flint breaks with a pronounced conchoidal (curved) fracture creating sharp edges. This feature was exploited by early man to create edged tools. It is made up of a mineral called Chalcedony, [...]
By admin on January 7, 2009 | 2 Comments