DVD
Microfeatures of synthetics, imitations and treated gems [videorecording] / Gemological Institute of America.
Summary:
Detailed instruction on microscopic identification of artificial and treated natural stones, highlighting characteristics that separate them from the genuine article.
Record details
- Physical Description: 1 DVD-video (45 min.) : sd., col.: 4 3/4 in.
- Publisher: [Santa Monica, CA] : The Institute, c1988.
Content descriptions
- General Note:
- Preceeding title frame: Gemfest '88.
- Creation/Production Credits Note:
- Producer, John H. Hummel ; director, Pedro M. Padua.
- Participant or Performer Note:
- Presenter, John Koivula.
- System Details Note:
- DVD.