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    Description

    QUARTZ GWINDEL
    Cavradi Gorge, Curnera Valley, Tujetsch, Vorderrhein Valley, Grischun, Switzerland

    A Gwindel is a particular type of Quartz crystal group where the aggregate shows a helical form when seen from the side or from above. The individual crystals composing them are invariably double terminated and often highly transparent. The greater percentage of these unusual forms of Quartz are found in the Alps of Italy, France and Switzerland, where clefts and cavities in the high cliffs are lined with these glittering confections. This example shows two different crystallization forms: the Gwindel, with its obvious spiral character and ten or so "normal" Quartz crystals sprouting from the matrix at random. All are highly transparent and appear to be colorless except for a greenish tinge caused by microscopic Chlorite flakes being included on the terminal faces of all of the Quartz crystals. There is a matrix of a light colored granitic rock and, on the bottom of that matrix, an accession or inventory number "Q17" or "Q12." This Swiss classic is in pristine condition.
    Overall Measurements: 3.25 x 2.25 x 1.75 inches (8.26 x 5.72 x 4.45 cm)
    Offered at no reserve.

    Provenance: Keith Proctor [Hoppel #D1582]


    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.

    Auction Info

    Auction Dates
    May, 2014
    4th Sunday
    Bids + Registered Phone Bidders: 0
    Lot Tracking Activity: N/A
    Page Views: 693

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