Cave pearls are a curious phenomenon. Also known as oolites, they are balls of calcite that have formed around fine grains of sand. These ones are on the floor of Honeycomb Hill Cave in the Ōpārara Valley, north of Karamea.
Te whakamahi i tēnei tūemi
Department of Conservation
Photograph by Ian Millar
This item has been provided for private study purposes (such as school projects, family and local history research) and any published reproduction (print or electronic) may infringe copyright law. It is the responsibility of the user of any material to obtain clearance from the copyright holder.