Search Archived Mineral Specimens
- Silver Crater mine, Bancroft, Ontario, Canada
- Miniature 3x3.5x3cm
Once known simply as the mineral species, Betafite, now in a complex mineral group called the Betafite group, which belongs to the super group of Pyrochlores with a complicated nomenclature. Compositionally, Betafites are oxides of titanium and niobium with variable subtitutions of cations uranium and calcium in the A position and variable amounts of anions O, OH, H2O, or F in the Z position.
This is one of the best Betafites I have ever seen. There are several crystals in this cluster with the biggest at the base which is about 3cm across. The crystal perched on top is 1cm across.