MUSCOVITE with SCHORL and fluorescent APATITE - Kirk No.2, Gilsum, New Hampshire, USA
Thick book of shiny Muscovite mica plates with black Schorl Tourmaline, pale-green Fluorapatite (fluorescent yellow SW), small amounts of white Quartz and several spots of green SW uranyl-activated fluorescence.
this specimen is featured on mindat, minID: 3D4-117
Measures approximately 2.5 x 2 x 0.75 inch, 4.33 oz / 63 x 51 x 19 mm, 123g
Item # A0590714
To show the fluorescent response the specimen was illuminated using 6 watt 254nm (Short Wave) / 366nm (Long Wave) UVGL-58 lamp (you need a proper UV light source to observe the fluorescence, more powerful lamp = brighter response).