Story: Gemstones

Chert, flint and jasper

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

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Photograph by Alastair McLean

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How to cite this page:

Jocelyn Thornton, 'Gemstones - Quartz', Te Ara - the Encyclopedia of New Zealand, http://www.TeAra.govt.nz/en/interactive/5123/chert-flint-and-jasper (accessed 27 January 2021)

Story by Jocelyn Thornton, published 12 Jun 2006