Fluorescent Mineral Specimen . Franklin Mining District. Sussex Co.. New Jersey, USA. ...

Description

Fluorescent Mineral Specimen
Franklin Mining District
Sussex Co.
New Jersey, USA

Esperite has always been coveted by collectors of fluorescents due to its shockingly brilliant yellowish-green response under shortwave ultraviolet. It has been found elsewhere in minor traces in a Bolivian tin mine, for example, but Franklin is likely the only locality deposit in any quantity. Fine cabinet-sized and larger specimens are decidedly rare, and rich pieces such as this large cabinet specimen have always been extremely scarce and highly sought-after. Though this specimen represents the most typical association, with yellowish-green fluorescent Willemite and the non-fluorescents black Franklinite and orange Zincite, the quality is exceptional. The large, relatively pure vein-like bands of Esperite are as bold and distinctive as the willemite, cutting a diagonal swathe across the beautiful rock, making for a rare, superb and highly aesthetic specimen of this Franklin classic.
Measurements: 5.0 x 3.0 x 2.5 inches (12.7 x 7.62 x 6.35 cm)

Provenance: Ex. Hugh Ronemus Collection

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