SC361 - Hyalite on Basalt
Locality: Gallatin Co., Montana, USA (MINDAT)
Size: 7 x 5 x 4 cm - Small cabinet (5-7 cm)
Weight: 85 g
minID: D38-GAA
Green fluorescent hyalite on basalt matrix. The best fluorescence is under shortwave UV light, weaker under longwave. I have been told it was collected in the summer of 2019 or 2020, from a locality close to the Hyalite Canyon, near Bozeman in Gallatin County, Montana. The exact locality is currently being kept confidential.
