Hyalite Opal, great quality, Gallatin Co., MT (Fluorescent!)

Description

Hyalite Opal, Fluorescent, from Montana! Even though crusts of Hyalite Opal have been known from Montana for decades, good quality specimens are rarely seen on the market from the state. A new claim in Gallatin Co., MT, has recently produced specimens of a quality rare to the state, more reminiscent of classic Mexican and Hungarian Hyalite Opal. I will post a number of these pieces in the upcoming period
The here presented example is great for the species, as well as Montana as a locality, but also for collectors of Fluorescent minerals. Apologies for the poor photo's, as Hyalite is difficult to photograph, short of a professional photography set up, leave alone out of hand with a Phone camera....This specimen is 31 grams, and shows a nice central formation of Hyalite, perched on Basaltic matrix, almost like an ice formation. I hope I paired it up with the right fluorescence photo.... I have to admit, once I photograph these in the dark with Shortwave, some of them start to look alike. But the photo shows exactly what one can expect from fluorescence, a spectacular green.
Please be advised, I ship with Priority shipping, small box.