Greywacke pebbles with quartz veins
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Greywacke pebbles with quartz veins
This selection of greywacke pebbles is from Ōwhiro Bay, Wellington. Greywacke is a hard, grey sandstone, often with fractures that are filled with quartz veins. These range in width from paper-thin to several millimetres.
About this item
Te Ara - The Encyclopedia of New Zealand
Photograph by Alastair McLean
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