Stibiotantalite on Ferrotantalite
Cryo-Genie Mine, San Diego Co., California, USA
Toenail, 3.0 x 2.0 x 1.0 cm
Ex. William (Bill) Larson
A rare association of two species of tantalite, from a small find here in the early 2000s. Obtained from the miners, the Gochenour brothers. I would say this must be fairly rare, two such sharply different and related species together like this