Uranospinite under shortwave UV Light



Same specimen as in photo URS1a, here showing the green fluorescence of the uranospinite coating under SW ultraviolet light.  Green fluorescence activated by the uranyl ion (UO22+) is common to many species of secondary uranium minerals.

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Patchy crust of fine-grained, pale to vivid yellow, dull-lustered uranospinite on medium-grained graphitic marble under shortwave UV Light

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Identifier: URS1b
Locality: 1220 crosscut at 1220N, 570W, 1100 level, Sterling mine, Ogdensburg
Specimen size: 8.5 x 7 x 5 cm
Photo credit: Earl R. Verbeek