- Thumbnail, 2.4 x 1.7 x 1.4 cm
- Boulby Mine, Loftus, North Yorkshire, England, UK
An EXCELLENT and AESTHETIC 3-dimensional thumbnail cluster of sharp, lustrous, sea-green boracite crystals from the famous Boulby Mine of England. Boracite is a rare borate and this is a very rich and fine specimen for the species and classic locality. Old dealer stock of Collector's Choice, Dalton and Consie Prince, of Houston.