Weddellite in a Marine Gastropod and in Antarctic Sediments

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Science  06 Dec 1968:
Vol. 162, Issue 3858, pp. 1129-1130
DOI: 10.1126/science.162.3858.1129


The calcium oxalate dihydrate mineral, weddellite, has been identified in a microarchitectural component of the gizzard plates from the deepwater gastropod Scaphander cylindrellus. This is the first indication of nonpathologic precipitation of this mineral by an animal species. A new occurrence of weddellite in sediments from the Weddell Sea, Antarctica, is also reported, lending support to the earlier interpretation that the mineral is an authigenic constituent of the sediments in this area.