Caitlin
Well-known member
- Joined
- Dec 11, 2004
- Messages
- 8,502
http://www1.uni-hamburg.de/mpi/museum/en/perlen/perlen_en.html
Interesting pictures in this link
The Mineralogical Museum of the University of Hamburg is offering an identification service for pearls using different X-ray methods: X-ray tests can show whether
- a pearl is natural or cultured
- a cultured pearl is bead- or tissue-nucleated
- a pearl is from marine or freshwater sources.
Interesting pictures in this link