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 power lamp = brighter response).

Fluorescent white LW/weaker white SW crystallized white Deweylite on white massive Magnesite with micro brown/black Manganese dendrites, olive green/green Serpentine and micro black metallic mineral-Chromite  (scope/loupe needed to see most of them clearly).

From Goat Hill Magnesia Quarries, West Nottingham Township, State Line Chromite District, Chester Co., Pennsylvania, USA

Measures approximately 4 x 3.5 x 1.5 inch, 10.68oz. / 102 x 89 x 38 mm, 303g

Price: 40.00 USD

Item # SP S0281221

Crystal Prospect

Fluorescent DEWEYLITE  - Goat Hill Magnesia Quarries, Chester Co., Pennsylvania, USA