Hibonite tanzanite (pink) brown center

brown center

partially clear

which also exhibits green areas depending on the direction of the incident light

elongated crystal with interesting growth zonation on its faces

They are embedded in the matrix with white anorthosite

Hibonite tanzanite (pink) brown centerWe were able to acquire a large lot of excellent crystals of this rare mineral. The partially hexagonal crystals are mostly completely black and exhibit an attractive star shaped luster reflection on the crystal faces, reminiscent of trapiche crystals. This is the best matrix piece of the find. Although the hibonite is small and slightly weathered, it also has the star shaped reflection on one side.