Notes on some Binnenthal minerals (Ilmenite, Seligmannite, Marrite, &c.)

Abstract

Some very brilliant and well-modified crystals of ilmenlte, recently found in the neighbourhood of the Ofenhorn, are of interest in that they exhibit a well-marked parallel hemihedrism and show the presence of a number of new forms. Although constantly sought for, it is more than fifteen years since crystals of this mineral were last found in the Binnenthal. The crystals described by H. Bücking in 1877 appear to differ in habit from those of the new find.