I think this is $25 per adult or $10/bucket in the screening area. More details can be found at Western Maine Mineral Adventures homepage. You can find gemstones like Tourmaline, beryl, and quartz (including smoky or rose). Other rare minerals might be Lepidolite, cassiterite, montebrasite, spodumene and pollucite, or lollingite.

Here are their mines that they take you to and some information on some of them:

"Ryerson Hill Mines:

     The walk is moderate but short in length from Ryerson Hill Road.

     The pegmatite quarry was recently worked and there are forty-five recorded mineral species. Among the minerals found here are albite, almandine, beryl, columbite, eosphorite, fluorapatite, hydroxyl-hererite, muscovite, pyrite, quartz.

Mt. Mica Mine:

Located in Paris, Maine, Mt. Mica is famous the world over for it’s gem tourmaline xls. Minerals observed at this locale include tourmaline (green, pink, blue, watermelon), biotite, garnet, beryl (aquamarine, morganite, green, white) eosphorite, cassiterite, cookeite, flourapatite, hydroxylapatite, hydroxyl-herderite, columbite, microcline, montmorillonite, muscovite, pollucite, quartz (milky, smokey, rose xls.), rhodochrosite, siderite, schorl (tourmaline), spodumene and many others.

Mt. Apatite:

The Bennett Quarry:

The Orchard Pit:

Lower Trenton and Russell in Topsham

The Intergalactic Mine at Deer Hill:"