Dumortierite inclusions in quartz

Weight: 0.65 g
Size: 11.5 x 6.4 x 5.9 mm


Group of blue dumortierite needles covering the base of clean colorless quarz crystal.
More information about this spectacular and relatively new material:
- Gems and Gemology, Spring 2015, Vol. 51, No. 1
“Between a rock and a hearty place” blog

Sample type: unpolished crystal
Origin: Vaca Morta quarry, Serra da Vereda, Boquira, Bahia, Brazil