At least 2 Tantalite crystals are partially embedded in the quartz matrix of this specimen. They are of the manganese-rich variety of Tantalite that is known simply as Manganotantalite. Only one of these crystals appears to be complete; it is not fully exposed, and what is visible has dimensions of 0.3 x 0.2 x 0.1" (8 x 5 x 3 mm).