Fluorescent "Mahogany" Sphalerite, Ogdensburg, NJ #38 (LW & SW Response)

Description

A medium cabinet sized sphalerite specimen with willemite and franklinite. The light brown wood grain-like sphalerite is the origin for the local term "mahogany". The sphalerite fluoresces best under longwave UV,
bright pink, blue and orange. Under shortwave it is more of a dark red response. The willemite is fluorescent bright green under shortwave and a more subdued green under longwave UV. Collected at the Sterling Hill Mine in Ogdensburg, NJ. Size: 3-1/2" x 2-1/2" x 2-1/4". Weight is 1 lb. 2 oz.  or 510 grams.
You must have a 365nm longwave UV lamp or a 254nm shortwave UV lamp to properly view the fluorescent response of this specimen.
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