Abstract In this issue This New Mineral Names has entries for 11 new species, including bohuslavite, fanfaniite, ferrierite-NH4, feynmanite, hjalmarite, kenngottite, potassic-richterite, rockbridgeite-group minerals (ferrirockbridgeite and ferrorockbridgeite), rudabányaite, strontioperloffite.

The new mineral, the iron analogue of monticellite, occurs in melilite-nephelinite Iava from Mt. Shaheru, Belgian Congo, associated with melilite, nepheline, clinopyroxene, kalsilite, gdtzenite, combeite, sodalite, magnetite, perovskite, apatite, hornblende, biotite, and an unident i f ied mineral . Analysis gave SiO2 32.77,TiO20.23, AIzOa0.26, Fe2Oa 0.66, FeO 29 34, MnO 1.65, MgO 4.95, CaO 29....