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    Blackbird Mine, Blackbird District, Lemhi County, Idaho, USA

    At over 5 inches tall, this vivianite crystal is surely amongst the largest from this locality. No person we have talked to that is familiar with the specimens produced by the Blackbird mine in remote central-eastern Idaho knows of a larger example than this fine crystal. How this superb piece has escaped attention for so long is a mystery. For most of the time since its extraction and rescue from the mill in the 1950's to 1960's, it rested in the collection of Geary Murdoch, an Idaho collector and dealer. Vivianite from most occurrences worldwide has a blue to green color but this blade exhibits the extraordinary purple color that is unique to this long shut cobalt mine, which predominantly produced blue to green crystals. Vivianite from the Blackbird district is typically associated with a sulfide matrix that commonly disintegrates, but not this crystal. Its rarity is enhanced by the fact that it is amongst the few from this part of the world that is secure on the stable vein rock (gangue) rather than the typically unstable sulfide matrix. Even the repair made on this specimen (somewhat visible near the base of the crystal) blends with the overall appearance, which is naturally etched, and does not detract from the piece's aesthetic. A true connoisseur's choice; rare, unusual and an internationally significant representative of the species; the specimen's overall dimensions are 7 x 4 ½ x 3 inches and is accompanied by a Geary Murdoch label.

    Provenance: Ex. Geary Murdoch 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: 1
    Lot Tracking Activity: N/A
    Page Views: 2,480

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

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