Red Fluorescent Spinel, Yenbai Province, Vietnam


This specimen consists of raspberry red, octahedral spinel crystals in a white marble matrix, from the An Phu Marble Mine, Luc Yen, Yenbai Province, Vietnam.  Under long wave UV, the spinel fluoresces deep, rich, red, and the marble matrix shows a moderate blue/white response.  Not all red spinel is created equal in terms of fluorescence.  Some fluoresces dimly, or not at all.  This is a particularly bright fluorescing specimen.  Size 36 x 32 x 24 mm, 25 grams.



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