Metabauxite horizons containing remobilized-origin gem diaspore and related mineralization, Milas-Mugla province, SW Turkey

HATİPOĞLU M., Turk N., Chamberlain S. C., Akgun A. M.

JOURNAL OF ASIAN EARTH SCIENCES, vol.39, no.5, pp.359-370, 2010 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 39 Issue: 5
  • Publication Date: 2010
  • Doi Number: 10.1016/j.jseaes.2010.04.016
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.359-370
  • Keywords: Gem diaspore (zultanite), Remobilized mineralization, Underground and open-pit bauxite mining, Milas-Mugla region (Turkey), HIGH-PRESSURE METAMORPHISM, SOUTHERN MENDERES MASSIF, BAUXITE, GENESIS
  • Dokuz Eylül University Affiliated: Yes


Remobilized-origin gem diaspore and related minerals occur as infill within structurally controlled voids that developed in the upper of two distinct karst unconformity-type metabauxite (diasporite) horizons in the Ilbir Mountains area of the Milas-Mugla province, SW Turkey. Colour-change diaspore (trademarked as zultanite) and associated mineral specimens (greenish muscovite, chloritoid, donbassite, specular hematite, ilmenite, goethite, and younger calcite) occur in fracture zones (veins and open structures) that cross-cut the metabauxite horizons. The mineralized fracture zones do not extend into the enclosing marbles, probably because of the ductility contrast between the brittle bauxite and relatively plastic carbonate beds.