Florescence displayed in rocks under ultraviolet light at Mineral Museum in Houghton, Michigan,
Florescence displayed in rocks under ultraviolet light at Mineral Museum in Houghton, Michigan,
20141219
XT1031
3.50mm f/2.40
color_k color_b
タグminerals, florescence, ultraviol
Trackback - http://f.hatena.ne.jp/austinburk/20141219114415

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