Gem-quality transparent diaspore (zultanite) in bauxite deposits of the A degrees lbir Mountains, Menderes Massif, SW Turkey

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

MINERALIUM DEPOSITA, vol.45, no.2, pp.201-205, 2010 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 45 Issue: 2
  • Publication Date: 2010
  • Doi Number: 10.1007/s00126-009-0262-2
  • Journal Name: MINERALIUM DEPOSITA
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.201-205
  • Keywords: Diaspore, Zultanite (gem diaspore), Bauxite, Milas-Mugla, Turkey, METAMORPHIC IMPLICATIONS, GENESIS
  • Dokuz Eylül University Affiliated: Yes

Abstract

Several m-thick, karst-unconformity-type metabauxite horizons in the A degrees lbir Mountains of SW Turkey host open-space mineralization of gem-quality diaspore (trademarked as zultanite), associated with muscovite, hematite, ilmenite, chloritoid, and younger calcite. The hydrothermal-metamorphogenic mineralization occurs in fracture zones (veins and open structures) that crosscut the metabauxite horizons, but does not extend into the marble host rocks. The white to dark gray marble sequence (over 2,000 m in thickness) is of Cretaceous depositional age and was affected by Alpine (Paleogene) tectonometamorphism which caused the hydrothermal remobilization of primary bauxite components into crosscutting structures.