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    Gemstone: Stibiotantalite - 3.39 Cts.
    Alto Ligonha District
    Zambezia Province

    Stibiotantalite is a rare mineral associated with granite pegmatites. After this mineral is mined, it is usually presented as single crystals and not commonly cut and faceted into gemstones. This fine example is nearly 3.4 carats and displays an attractive golden honey-brown hue. Due to its soft nature, Stibiotantalites are very difficult to cut; however, this stone has a nice trillion shape with pleasing facets and polish. Characteristically, Stibiotantalites sometimes are confused with Sphalerites but have greater dispersion and birefringence than Sphalerites. This stone lights up with incredible fire and has an overall pleasing honey hue. Due to the nature of the stone, there are visible inclusions and a fingerprint inclusion is visible breaking across the table. Overall, the stone presents very well and is in great condition.
    Measurements: 7.99 x 6.92 x 4.28 mm, 3.39 cts.

    Provenance: The Jena Blue 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, 2020
    5th Monday
    Bids + Registered Phone Bidders: 2
    Lot Tracking Activity: N/A
    Page Views: 322

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