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RM3494   Powellite

Acute, yellow to orange, transparent, dipyramidal powellite crystals. Accompanied by molybdenite in the matrix. Very fluorescent under UV short wave, with yellow tones.

Size: 3.8 x 2.7 x 2.5 cm.
Main crystal: 1.5 mm
Ex. J. Viñals. Col. E. Nicolau (Barcelona).
Fluorescent under short wave UV
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RM3488   Powellite

Acute, yellow to orange, transparent, dipyramidal powellite crystals. Accompanied by molybdenite in the matrix. Very fluorescent under UV short wave, with yellow tones.

Size: 3.7 x 3.2 x 1.9 cm.
Main crystal: 2 mm.
Ex. J. Viñals. Col. E. Nicolau (Barcelona).
Fluorescent under short wave UV
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RM3243   Cuprian Powellite

Drusy crystals of yellow-green (var. cuprian) powellite. Good sized crystals and with rounded faces. Fluoresces bright yellow under SW-UV light. This mine is the Type Locality for szenicsite.

Size: 4.2 x 3.6 x v3 cm.
Main crystal: 1.8 mm.
Col. E, Laskowski (Tucson, USA).
Fluorescent under short wave UV
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