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    Sub-Rosiclare Level, W.L. Davis-Deardorff Mine, Cave-in-Rock District, Hardin Co., Illinois, USA

    Despite the considerable amount of Fluorite produced by the many workings in this district over several decades, there are distinguishing characteristics exhibited by specimens that can pinpoint the particular mine they came from. The combination of pale purple cubes with light golden cores, on a sparkly matrix of Quartz and dark Sphalerite, pretty well confirms the Deardorff Mine as the source of the large cabinet sized example seen here. Mined in 1947, somewhat early in the district's history, it shows the vibrant color that makes good Deardorff specimens so attractive to collectors - and according to economic mineralogist A. V. Heyl, "The Deardorff mine was THE specimen mine of the 1930's - 1950's. It closed in the early 1960's." Simple cubes up to 1.25 inches (3.2 cm) on edge pepper the scintillating upper surface of an altered limestone matrix normal for the area. Scattered in amongst the Sphalerite and the Quartz is an infrequent dark, cube of Galena, but you have to look closely to find one. The specimen is in pristine condition with no damage.
    Overall measurements: 8 x 6 x 4 inches (20.3 x 15.2 x 10.2 cm). Offered at no reserve.

    Provenance: Dan Weinrich, ex. Steve Neely Collection #512i [Hoppel Catalog # D1947]

    [Scale: 1 inch, with mark at 1 cm]

    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.

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    Auction Info

    Auction Dates
    June, 2013
    2nd Sunday
    Bids + Registered Phone Bidders: 4
    Lot Tracking Activity: N/A
    Page Views: 1,463

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