Story: Rock and mineral names

Dunite under the microscope (2nd of 2)

Dunite under the microscope

A thin section (a 10-millimetre-wide microscope slice) of dunite from Dun reveals the beautiful coloration, under polarised light, of interlocking grains of olivine. The small black grains are chromite, which is opaque under the microscope.

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GNS Science
Photograph by Nick Mortimer

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How to cite this page:

Simon Nathan, 'Rock and mineral names - Rocks named in New Zealand', Te Ara - the Encyclopedia of New Zealand, (accessed 24 July 2024)

Story by Simon Nathan, published 12 Jun 2006