a Demange, Michel \a Mineralogy for petrologists \b Optics, chemistry and occurrences of rock- forming minerals \h (Text) \c / by Michel Demange - \a London: \b Taylor & francis group \c 2012 - \a ix, 201p. Including subject index ISBN: \a 9780367269272 LC Class. No.: \a QE 431.2 Dem / \b 513961