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    Franklin, Sussex Co, New Jersey
    Esperite is one formerly unique Franklin mineral that 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. Though somewhat scarcer than Hardystonite, most collectors can hope to eventually obtain at least a small piece; but fine cabinet-sized and larger specimens are decidedly rare, and rich pieces such as this large 5 x 3 x 2½-inch 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. More mundane specimens of this association can be difficult to identify, as the fluorescent hues and intensities are similar enough that the colors appear indistinguishable as these two minerals become more intimately mixed. But 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.

    Provenance: Ex Hugh Ronemus Collection

    Condition Report*: Condition report available upon request.
    *Heritage Auctions strives to provide as much information as possible but encourages in-person inspection by bidders. Statements regarding the condition of objects are only for general guidance and should not be relied upon as complete statements of fact, and do not constitute a representation, warranty or assumption of liability by Heritage. Some condition issues may not be noted in the condition report but are apparent in the provided photos which are considered part of the condition report. Please note that we do not de-frame lots estimated at $1,000 or less and may not be able to provide additional details for lots valued under $500. Heritage does not guarantee the condition of frames and shall not be liable for any damage/scratches to frames, glass/acrylic coverings, original boxes, display accessories, or art that has slipped in frames. All lots are sold "AS IS" under the Terms & Conditions of Auction.

    Auction Info

    Auction Dates
    June, 2011
    12th Sunday
    Bids + Registered Phone Bidders: 5
    Lot Tracking Activity: N/A
    Page Views: 1,403

    Buyer's Premium per Lot:
    19.5% of the successful bid (minimum $14) per lot.

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