Orange topaz with synthetic hematite coating
Author(s) : -
Date : 2002
Orange topaz with synthetic hematite coating. Published in Gems & Gemology, 2002.
Author(s): M.S. Krzemnicki
Download PDF
Tag : Topaz
Das strahlende Blau der behandelten Topase
Author(s) : -
Date : 1993
Das strahlende Blau der behandelten Topase. Published in Zeitschrift der Deutschen Gemmologischen Gesellschaft, 1993.
Author(s): M. Huegi