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	*Gaines, Richard V., Skinner, H. Catherine W., Foord, Eugene E., Mason, Brian, Rosenzweig, Abraham, King, Vandall T. (1997) Dana's New Mineralogy* (8th ed.) Wiley-Interscience. p.1872**	Book (edition)
	James Dwight Dana and Edward Salisbury Dana EIGHTH ENTIRELY REWRITTEN EDITION AND GREATLY ENLARGED ...ROCHESTER ACADEMY OF SCIENCE, ROCHESTER, NEW YORK And with Illustrations by ERIC DOWTY SHAPE SOFTWARE...This publication is designed to provide accurate and authoritative information in regard to the subject...of James Dwight Dana and Edward Salisbury Dana. — 8th ed., entirely rewritten and greatly enl. / by Richard...of: The system of mineralogy of James Dwight Dana and Edward Salisbury Dana. 7th ed. New York, J. Wiley

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Orthopyroxene Subgroup from Ascension Island, Saint Helena， Ascension and Tristan da Cunha

Orthopyroxene Subgroup from
Ascension Island, Saint Helena， Ascension and Tristan da Cunha