The Chemistry of Riebeckites of Massachusetts and Rhode Island

Paul C. Lyons1
Boston University, College of Basic Studies, Boston, Massachusetts 02215, U.S.A.
1Present address: 18 Northwood Drive, Walpole, Mass. 02081

Summary: Four new chemical analyses are reported for riebeckites of the hypersolvus granites of Massachusetts and Rhode Island. Riebeckites of southern New England are enriched in Li+, which appears to substitute for Fe2+, with additional Na+ coming in to compensate for the charge imbalance.

Mineralogical Magazine; March 1976 v. 40; no. 313; p. 473-479; DOI: 10.1180/minmag.1976.040.313.06
© 1976, The Mineralogical Society
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