Minerva No. 1 Mine, Ozark-Mahoning Group, Cave-in-Rock Sub-District, Illinois -Kentucky Fluorspar District, Hardin Co., Illinois, USA

    Besides turning out stunning Fluorite specimens in multiple colors, the Fluorite mines of Hardin County, Illinois furnished some of the best examples of the rare mineral: Witherite, a carbonate of Barium. Good examples of Witherite are quite rare, as most are microscopic or simply ... grotty. Fine examples are chiefly confined to the U.K. or Illinois. This large specimen is a stubby and doubly-terminated barrel shaped crystal of off-white and translucent appearance embedded in, and on, a matrix of pastel yellow and purple Fluorite cubes with a little black Sphalerite thrown in for contrast. It was mined in the late 1960s or early 1970s from the Bethel Level of the Minerva #1 Mine. The Witherite measures a serious 1.88 inches (4.75 cm) in length and a hefty 1.5 inches (3.88 cm) in diameter. The Fluorite shows weird hollow areas where something was dissolved away leaving negative crystal cavities. The Witherite is in excellent condition with only a couple of tiny "wilbers" in evidence. The accompanying catalog note details the exact level in the mine where this specimen was found.
    Overall Measurements: 5.0 x 4.01 x 2.98 inches (12.7 x 10.2 x 7.59 cm)
    Offered at no reserve.

    Provenance: Western Minerals [Hoppel #D1700]

    Estimate: $7,500 - $8,500.

    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: Flat Art Small Set (15-20) (view shipping information)

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    Auction Info

    Auction Dates
    May, 2014
    4th Sunday
    Bids + Registered Phone Bidders: 0
    Lot Tracking Activity: N/A
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