- Home About RM Minerals
- Virtual Photo Museum Blog RM Contact
- Microscopy and instruments How to Buy Disclaimer
Copyright 2010-2025
www.rosellminerals.com
An extremely glassy opal specimen, transparent to translucent, with bluish to golden tones. An excellent specimen of opal from this classic American locality. It shows some fluorescence under ultraviolet (LW) light. An old piece from the A. Trigo collection (Mataró).