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    Description

    Spinel
    Mahenge, Morogoro Region, Tanzania

    In subduction zones and the like, limestones or Dolomite are heated to temperatures between 700 to 1000 degrees Celsius, while having the bejesus squished out of them by overlying rock pressure, resulting in the formation of Spinel and Corundum in gem deposits like Mahenge, home of the partial octahedron seen here. Not average Spinel, this one has gemmy areas that would yield deep pink gems, if so desired, but the gem areas in this one are fairly small and so the decision to market as a specimen won out. The luster is quite glassy and the bottom of the specimen shows the peculiar granular texture often seen in incomplete Spinel crystals. One corner shows minor damage but such surfaces look a lot like the granular texture of the natural crystal faces.
    Measurements: 1.9 x 1.8 x 1.7 inches (4.9 x 4.6 x 4.4 cm)
    Offered at no reserve.

    Provenance: Rainbow of Africa Collection


    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, 2015
    15th Thursday
    Bids + Registered Phone Bidders: 0
    Lot Tracking Activity: N/A
    Page Views: 733

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