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Yearly Memberships Include unlimited museum only admission, 10% discount on most items in the gift shop.
Summer Mineral Sale July 3- Sept. 6
World Wide George Megerle Collection
and Dan McHugh Mineral and Science Books Collection
Our next Night Dig is Saturday, July 18th. Come out and join the fun!
550 pounds of Sterling Hill Mine run material has been added to the barrels outside, come and check it out!
The Franklin-Sterling Hill area has more fluorescent minerals than anywhere else on Earth, and nothing is simple at this locality.
This checklist is not a treatise, so the descriptions are condensed and simplified. The most common fluorescent response is listed first. The UV wavelength or wavelengths listed for a mineral are those under which its fluorescence is brightest; “FL red SW” means that the mineral typically fluoresces red in shortwave UV, but may fluoresce less brightly under MW and/or LW. (Uncommon but significant fluorescences are in parentheses.) Subtleties such as fluorescent hue, saturation, and intensity are often overlooked.
For assistance in identification, the minerals are listed by assemblage, in brackets:
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[FM] = Franklin Marble
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[W] = weathering minerals
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[O] = zinc orebodies
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[V] = vein minerals
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[C] = calcsilicates
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[AC] = altered calcsilicates
Not all local minerals fit neatly into this scheme.
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{FO} = Franklin only
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{SHO} = Sterling Hill only
CAVEAT: While mineral fluorescence can be a powerful tool for mineral identification, it should be used in conjunction with other identification techniques. Misidentifications based on fluorescence alone are common.
Fluorescent Minerals of
Franklin and Sterling Hill, N.J.
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