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    Description

    TOURMALINE with QUARTZ & LEPIDOLITE
    Bicolor Steel Pocket, 2004
    Pederneira Mine, São José da Safira, Doce Valley, Minas Gerais, Brazil

    This stunning Pederneira matrix specimen deserves close and personal examination, since the variations in color alone make it a classic example of material from the "Bicolor Steel Pocket." Starting from the Smoky Quartz fragment that serves as a matrix for the 4.72 x 0.39 inches (12.0 x 1.0 cm) Tourmaline, the discerning eye goes on a magical mystery tour beginning with a bright pink tint where the crystal leaves the enveloping Quartz and progresses upward where a kugel * marks the abrupt shift to blue-green color with limpid transparency for the remainder of the prism. In the last millimeter or so of the termination, there is a faint return to the pink tint seen initially: a remembrance of things past. The fairly dark Smoky Quartz "matrix" shows a number of sharp and undamaged faces festooned with clots of lavender Lepidolite crystals and a minor bit of bladed Feldspar on the backside. Luster for the Tourmaline is glassy and in some places 'satiny' where prominent striations give added character to the crystal. Condition is pristine when allowance is made for the ubiquitous repairs needed to restore Pederneira Tourmalines to their former positions. In this case, there is but one repair. As a lagniappe, close by the tip of the Tourmaline, is a tiny, doubly-terminated Quartz crystal off to one side - just another fine detail worthy of close examination.
    Overall measurements: 3.1 x 5.7 x 1.3 inches (7.8 x 14.5 x 3.3 cm)

    * A kugel is a typically round section of a Tourmaline prism, bounded on the exterior by stress fractures and invariably containing flawless gem material suitable for gemstones, derived from the German word for 'ball' or 'sphere.'

    Provenance: Ex. Daniel Trinchillo Sr. Collection
    Illustrated: Fong/Walker, M., Neumeier, G., & Walker, J. (Eds.). (2015). The World of Tourmaline: The Gerhard Wagner Collection. Dallas, Texas: Ivy Press. Page 149.
    Illustrated: Niedermayr, G. (2010). Arco Iris-der brasilianische. Messekatalog 2010 Mineralienmontage: Brasilien, Salzhemmendorf: Bode Verlag. Page 43.
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    Estimate: $60,000 - $80,000.

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

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    Auction Info

    Auction Dates
    June, 2015
    7th Sunday
    Bids + Registered Phone Bidders: 0
    Lot Tracking Activity: N/A
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