Sterling Mine
    Sterling Hill, Ogdensburg, New Jersey, USA

    Originally worked for silver and zinc, the mines of Franklin, New Jersey are famous today as the source of some of the world's finest fluorescent minerals. This fine crystal was found in 1990 on the 430 foot level of the East vein of the Sterling Mine in a happy accident; a visitor to the mine tripped and fell into muddy water and came up with a rock that opened to reveal this marvel. This superb example exhibits a well developed hexagonal prism of tan willemite, accented by octahedral crystals of black franklinite and aesthetically perched on a cream-colored calcite matrix. It is quite attractive under normal indoor or daylight, but under shortwave ultraviolet light the approximately 3½ x 2 1/8 x 1 5/8 inch specimen luminesces a vibrant orange-red and green, activated by the presence of lead and manganese impurities (in the calcite and manganese in place of some of the zinc in willemite, respectively). Fine crystals of willemite are relatively rare to begin with; the aesthetics of this piece make it additionally appealing to the collector of not only fluorescents, but minerals in general.

    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. 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. All lots are sold "AS IS" under the Terms & Conditions of Auction.

    Fees, Shipping, and Handling Description: Requires 3rd Party Shipping (view shipping information)

    Sales Tax information  |  Terms and Conditions

    Bidding Guidelines and Bid Increments

    Glossary of Terms

    Auction Info

    Auction Dates
    June, 2011
    12th Sunday
    Bids + Registered Phone Bidders: 1
    Lot Tracking Activity: N/A
    Page Views: 2,272

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

    Sold for: Sign-in or Join (free & quick)

    Heritage membership

    Join Now - It's Free

    1. Past Auction Values (prices, photos, full descriptions, etc.)
    2. Bid online
    3. Free Collector newsletter
    4. Want List with instant e-mail notifications
    5. Reduced auction commissions when you resell your
    Consign now
    • Cash Advances
    • More Bidders
    • Trusted Experts
    • Over 200,000 Satisfied Consignors Since 1976
    Consign to the 2018 April 17 Modern & Contemporary Art - Prints & Multiples - Dallas.

    Learn about consigning with us

    In my estimation Taylor exemplified professionalism and in that respect clearly added value to Heritage Auctions as their representative.
    Robert B.,
    Philadelphia, PA
    View More Testimonials receives more traffic than any other auction house website. (Source:

    Video tutorial

    Getting the most out of search

    Recent auctions

    2017 October 13 Illustration Art Signature Auction - Dallas
    2017 October 13 Illustration Art Signature Auction - Dallas
    REALIZED $1,098,328