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    Description

    TITANITE
    Ankarafa,Vohémar District, Sava (Northeastern) Region, Antsirinana Province, Madagascar

    Of the few researchers who have broad expertise concerning Madagascan Minerals, Dr. Federico Pezzotta, Curator of Mineralogy at the Natural History Museum of Milano, is the acknowledged leader. His research and excavations on the island have resulted in numerous significant finds and an equally significant amount of papers, including one on the source locality for this specimen. This hefty matrix specimen traveled from Dr. Pezzotta's personal collection (confirmed by personal discussion), to Keith Proctor, and finally to the Hoppel Collection. It features 8+ twinned Titanite crystals of lime-green hue clustered in a tight group upon sparkling schist matrix liberally "dusted" with tiny Epidote prisms. The Titanites measure up to ~1.75 inches (4.2 cm) from tip to tip and are sharp, gemmy blades with sub-adamantine to waxy luster. Titanite was originally called "Sphene" from the Greek word for "wedge" because of the minerals similarity in shape, but that name has fallen out of favor with the boffins, but is still used informally. This significant cabinet specimen is in pristine condition.
    Overall measurements: 6 x 5 x 3 inches (15.2 x 12.7 x 7.6 cm). Offered at no reserve.

    Reference: Pezzotta, F. (2005): "Titanite e altri minerali in fissure di tipo "alpino" nel nord est del Madagascar." Rivista Mineralogical Italiana, 30 (2): pp. 104-111
    Provenance: Ex. Keith Proctor Collection, ex. Frederico Pezzotta Collection [Hoppel Catalog # D2088]


    [Scale: 1 inch, with mark at 1 cm]




    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.

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    Auction Dates
    June, 2013
    2nd Sunday
    Bids + Registered Phone Bidders: 2
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