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UV Minerals3-Wavelength Franklin Manganaxinite

18th Sep 2016 14:09 UTCGary Moldovany

I recently acquired a specimen of Franklin, NJ "manganaxinite". We have found that it fluoresces in all 3 wavelengths. Of course the best fluorescence is in shortwave, orange. It also fluoresces a pinkish-orange in midwave and the same color but not as well in longwave. Do I have something special here? I was only able to find one reference in Stuart Schneider's book: "Collecting Fluorescent Minerals" and he states that it's only fluorescent in shortwave.

18th Sep 2016 16:51 UTCRichard Gunter Expert

Hi Gary:

A photo would help. The SW orange fluorecence in a mass of Franklin Manganaxinite may be admixed Clinohedrite.

23rd Sep 2016 03:46 UTCSteven Kuitems Expert

Hi Gary,

The responses you have recorded are certainly accurate and not "unique". You will find these responses on a number of bright fluorescing Axinite-(Mn) specimens from Franklin, NJ. The midwave response is definitely weaker and pinker and the longwave UV response is a bit brighter and redder just not as intense as under Shortwave UV light. Not sure why these other responses were not listed on the official fluorescent response list but they have been known for a while.

Steve

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