“Bringing The Past, Into the Future”

Northern Geological Supplies Ltd
Northern Geological Supplies Ltd

“Bringing The Past, Into the Future”


£1.38£2.62 ex VAT

Pumice specimens from the Lipari islands, Italy. Pumice is an igneous rock with a highly porous structure resulting from trapped gas bubbles as the lava was being ejected. The rock is usually very light & buoyant in water. Specimens are supplied in a card tray with label.

SKU: IGNROK050 Category:

Pumice forms when super heated, highly pressurised lava is violently ejected from a volcano. The porous nature of pumice occurs because of simultaneous rapid cooling and rapid depressurization. The depressurization creates bubbles by lowering the solubility of gases (including water and CO2) that are dissolved in the lava, causing the gases to rapidly exsolve. The simultaneous cooling and depressurization freezes the bubbles in the matrix. Submarine eruptions can produce vast quantities of rapidly cooled pumice which floats to the surface creating shipping hazards.

Additional information

Weight 130 g
Specimen Size



There are no reviews yet.

Be the first to review “Pumice”

Your email address will not be published. Required fields are marked *