Pumice (Dry)
Copyright/attribution: Natural History Museum, London
Copyright/attribution: National Museum of Ireland - Natural History
Description
Notes: An irregular, white, fibrous fragment of liparitic pumice, with the central portions more or less altered, the fissures being often filled with mud.
Citations: Deep Sea Deposits, Report of the Scientific Results of the Exploring Voyage of HMS Challenger 1873-1876. Plate 1, Figure 7, Page 349