- Boulby Potash Mine, Loftus, North Yorkshire, England
- Cabinet, 9.4 x 6.3 x 3.7 cm
- Ex. Lindsay Greenbank
Inside a hollow vug are individual crystals of glassy and gemmy, pastel green boracite, to 4mm. This is a very rare magnesium borate. However, the crowning glory of this specimen is the unusual stalactite composed of super sharp and lustrous boracite crystals. This stalactite measures 2 cm in length and is highly unusual. Recovered in 1993 by the mine surveyor, this is a significant and aesthetic specimen.