Calciostrontianite in the Basal Purbeck Beds of Durlston Head, Dorset

D. L. Salter and Ian M. West
Department of Geology, The University, Southampton

Summary: A spherulitic mineral occurring as veins and nodules in celestine-bearing secondary limestones in the Lower Purbeck Beds at Durlston Head, Swanage, Dorset, is identified as calciostrontianite, a mineralnot previously recorded from Britain. Textural relationships indicate that it was formed from the alteration of celestine and was in part converted back into celestine. The calciostrontianite originated as an epigenetic mineral during the tectonic movement that gave rise to the Broken Beds.

Mineralogical Magazine; March 1965 v. 35; no. 269; p. 146-150; DOI: 10.1180/minmag.1965.035.269.17
© 1965, The Mineralogical Society
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