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    This optically clear Quartz sphere has a very interesting history: originally the Quartz was mined in Brazil and purchased for the U.S. Defense National Stockpile. The National Stockpile was created shortly after World War II to acquire and store critical strategic materials for national defense purposes. Its primary mission is to protect the nation against dangerous and costly dependence upon foreign sources of supply for critical materials in times of national emergency. At the time, optical Quartz was critical for electronics and high-precision optics applications. But by 1994, this was no longer the case and the optical Quartz stockpile was auctioned off. This 87 mm diameter (3.43 inches) optically clear Quartz sphere is a direct result of that auction - since the rough Quartz came from that auction. Nowadays, it is extremely difficult to obtain the caliber of Quartz necessary to make a sphere greater than 3 inches in diameter with this level of optically flawless perfection. It is well polished with perfect concentricity: one can use this "crystal ball" as a lens, objects viewed through it are perfectly clear, just upside down. A strong caution applies: do not leave this sphere in sunlight - because it is a large and powerful sphere, it can start a fire with considerable ease.

    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
    January, 2010
    17th Sunday
    Bids + Registered Phone Bidders: 2
    Lot Tracking Activity: N/A
    Page Views: 5,370

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

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