Montebrasite included with Boulangerite "needles" Magnetite 3 cm across

3 cm across

sharpness and gemminess

habits and localities

makes it a good gem for collectors

Specimen #BURMA22116

Montebrasite included with Boulangerite "needles" Magnetite 3 cm acrossMontebrasite is a lesser known analogue of Amblygonite, but it turns out that a large percentage of the material that has been labeled as Amblygonite over the decades is more than likely Montebrasite. Apparently, Montebrasite is the hydroxyl (OH) member of the series, and is FAR more common than Amblygonite which is the fluorine analogue. A number of tests have revealed that the vast majority of the "Amblygonites" in the world are Montebrasite, so