Description

    RAINBOW OBSIDIAN FREEFORM
    Mexico
    Caused by the swift cooling of volcanic lava, obsidian is not in fact a mineral but a form of glass, with no true crystals. The cooling of the lava is so rapid - even from the typical temperatures between 780 and 820 Celsius - that true crystals have insufficient time to form, but in some instances the similarly-structured crystallites, or grains, form parallel to the flow structure creating the ghostly colored banding suggestive of a rainbow. Shimmering seemingly just below the surface of this highly polished freeform are visible shades of green, blue, yellow and purple, and the rock has been artfully carved to highlight their ethereal patterning in this specimen, measuring 7½ x 4½ inches.


    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. 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
    January, 2009
    18th Sunday
    Bids + Registered Phone Bidders: 3
    Lot Tracking Activity: N/A
    Page Views: 724

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