Kōrero: Rock and mineral names

Greywacke under the microscope (2 o 2)

Greywacke under the microscope

This is a thin section (a microscope slice, 3 millimetres wide) of greywacke – an assortment of angular grains in a fine-grained clay. The clear grains are mainly quartz, while many of the cloudy grains are feldspar.

Te whakamahi i tēnei tūemi

GNS Science
Photograph by Nick Mortimer

Permission of GNS Science must be obtained before any use of this image.

Ngā whakaahua me ngā rauemi katoa o tēnei kōrero

Te tuhi tohutoro mō tēnei whārangi:

Simon Nathan, 'Rock and mineral names - Local names', Te Ara - the Encyclopedia of New Zealand, http://www.TeAra.govt.nz/mi/photograph/9065/greywacke-under-the-microscope (accessed 10 April 2020)

He kōrero nā Simon Nathan, i tāngia i te 12 Jun 2006