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Chert, flint and jasper

Chert, flint and jasper

Chert, flint and jasper are opaque forms of ultrafine-grained quartz. Jasper is distinctively red or multi-coloured. Flint is a hard variety of chert, often found as nodules in limestone.

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Te Ara - The Encyclopedia of New Zealand
Photograph by Alastair McLean

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