Kōrero: Gemstones

Silicified wood and plant material

When wood and plant material is buried, circulating waters sometimes deposit fine-grained quartz in the cells (silicification), forming a hard rock in which the plant’s original structure can be seen. There has been considerable silicification of plant material in the Coromandel area, producing a silica-rich rock known as Manaia stone.

Te whakamahi i tēnei tūemi

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

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Ngā whakaahua me ngā rauemi katoa o tēnei kōrero

Te tuhi tohutoro mō tēnei whārangi:

Jocelyn Thornton, 'Gemstones - Quartz', Te Ara - the Encyclopedia of New Zealand, http://www.TeAra.govt.nz/mi/interactive/5124/silicified-wood-and-plant-material (accessed 8 December 2019)

He kōrero nā Jocelyn Thornton, i tāngia i te 12 Jun 2006