- Home About RM Minerals
- Virtual Photo Museum Blog RM Contact
- Microscopy and instruments How to Buy Disclaimer
Copyright 2010-2025
www.rosellminerals.com
This is one of the rare borates determined in Kohnstein quarry. The crystals, sharp and well defined, are completely transparent, colorless, large for the species and on matrix. It comes from this currently inactive quarry in the Harz mountains.