Note on a Picrite from the Liskeard District

Prof. T. G. Bonney
SINCE this paper was printed, a memoir by Prof. Sauer, on the peculiar blue hornblende from Socotra, has appeared (Zeitsch. d. Deutsch : geol. Gesellsch. Vol. XL. p. 138). It is found on analysis to have more SiO2), much more Fe2O3, and less FeO than Arfvedsonite, so that he proposes the separate name Riebeckite.

Mineralogical Magazine; October 1888 v. 8; no. 37; p. 108-111; DOI: 10.1180/minmag.1888.008.37.03
© 1888, The Mineralogical Society
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