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    Ray Mine, Scott Mountain Area, Mineral Creek Dist. (Ray Dist.), Dripping Spring Mts, Pinal Co., Arizona, USA

    One of the rarer gemstones on the planet is "Gem Silica" or what is also known as "Gem Chrysocollla" because it forms under very unusual conditions. First you have to have a Copper deposit that is rich with Chrysocolla. Then silica laden solutions have to pass through the deposit transforming what would normally be a soft stone (Chrysocolla is 2 to 4 on the Mohs sale) into a silica-rich Chalcedony that has the great color of Chrysocholla but the superior hardness of Quartz. Fortunately the Ray Mine of Arizona is one of the few places on this planet where this phenomena has actually occurred. During the course of mining, the miners will occasionally run into pods of this rich turquoise-blue Chacedony. Ultimately it finds its way into the gem market as rough because of the high prices it commands. The market demand is so high for this material that any and all of the top grade color is immediately snapped up.

    What we have here is a 46 gemstone parure fashioned from "Gem Silica" from the Ray Mine. Crafted by a master gem artist who painstakingly gathered the raw material until he had collected enough to create this one-of-a-kind set. Each pear shaped cabochon has been carefully cut and polished mirror bright. Forty-three of these stones are graduated and matched in size, making them perfect for a necklace. Of the remaining three, two constitute a matched pair suitable for earrings and the sizable remaining single stone can be either the central focus of a ring or brooch. The matching of the gemstones is unparallelled: each stone has the identical coloration and has been flawlessly executed. Obviously the bar had been set very high for creating this parure and many a gemstone had to have been rejected because they did not match perfectly. This is definitely a set that is not easily duplicated.

    This unique "Gem Silica" parure has a total carat weight of 145.5 carats. The largest cabochon measures 32.85 x 14.65 mm, and weighs 27.61 carats, while the smallest measures 7.83 x 4.89 mm and weights .83 carats. All of the stones are in excellent condition.

    Measurements: 46 total gemstones, 145.55 total carat weight
    Offered at no reserve

    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
    October, 2013
    19th-20th Saturday-Sunday
    Bids + Registered Phone Bidders: 1
    Lot Tracking Activity: N/A
    Page Views: 6,677

    Buyer's Premium per Lot:
    25% on the first $100,000 (minimum $14), plus 20% of any amount between $100,000 and $1,000,000, plus 12% of any amount over $1,000,000 per lot.

    Sold on Oct 20, 2013 for: Sign-in or Join (free & quick)
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