This sand is from the collection of the late Ivor Treby. It was collected near the Champange Pool at a geothermal reserve in Waiotapu. Renowned for its vividly coloured pools it has become a tourist attraction known as Wai-O-Tapu Thermal Wonderland. The primrose yellow of this ‘sand’ is caused by high levels of sulphur.

Ivor was a biochemistry teacher and poet with over 400 published poems. He considered himself to be a gay literary activist.

Ivor took early retirement in the 1980s and dedicated his time to researching two Victorian/Edwardian women poets who wrote under the pseudonym Michael Field. He also spent much of the next 20 years travelling abroad. Wherever he went he collected samples of sand and sediment.

He was meticulously organised. His personal archive of poems, postcards, letters and research is held by the Bodleian Library at the University of Oxford. For more information on Ivor and the archive please see their website
Accession Loan No.
Collection Class
Geology Rock Type
Common Name
Simple Name
Full Name
volcanithermal sand
Geology Period
Holocene 10,000 - today
Family Group

Collector / Excavator
Treby, Mr Ivor Charles Francis
Collection Town
Collection County
North Island
Collection Country
New Zealand
Collection Area Region
Australia and New Zealand
Collection Continent

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