Bulk Pumice – Full Cubic Metre ~ QUARRY ONLY ~ Collect only from Atiamuri

Grade:1-2mm Grade: 1-7mm Grade: 7-20mm Available by the 1/2m3 or full m3 Pumice is a light, porous volcanic rock that forms during explosive eruptions. It resembles a sponge because it consists of a network of gas bubbles frozen amidst fragile volcanic glass and minerals. All types of magma (basalt, andesite, dacite, and rhyolite) will form pumice. During an explosive eruption, volcanic gases dissolved in the liquid portion of magma expand rapidly to create a foam or froth; in the case of pumice, the liquid part of the froth quickly solidifies to glass around the glass bubbles. Full cubic metre, to be collected from 369 Ongaroto Road, Atiamuri between 8am and 4pm, Monday to Friday