Description

    UNUSUAL MATRIX MICA
    Sapo Mine, Ferruginha, Conselheiro Pena, Doce Valley, Minas Gerais, Brazil

    Three-dimensional Mica crystals are actually quite rare, particularly as large matrix specimens. At over 5.5 inches (14.4 cm) across and 1.63 inches (4.2 cm) in thickness, this huge, silvery hexagon is nestled into a matrix of white Cleavelandite blades. It has an additional feature that ups the interest value - an Aquamarine crystal, but not a normal one. This Aquamarine is hidden inside the matrix, where corrosive fluids have almost succeeded in dissolving it away. At the bottom of the two hexagonal cavities, showing on opposite sides of the matrix, there is the remainder of a gemmy Aquamarine that shows highly etched surfaces. The cavity originally housed a euhedral Aquamarine that must have been over 5.5 inches (14 cm) in length, because the cavity is that long. Light shined down one cavity end goes right through the remaining Aqua and on out the other side. As a lagniappe, there is a second mica crystal, of the same sharp form as the big one, off to one side of the matrix. The condition of this most unusual piece is excellent.
    Overall measurements: 7 x 6 x 6 inches (17.8 x 15.2 x 15.2 cm).

    Provenance: Keith Proctor [Hoppel # D1996]


    Estimate: $7,000 - $8,000.

    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 Dates
    October, 2013
    19th-20th Saturday-Sunday
    Bids + Registered Phone Bidders: 0
    Lot Tracking Activity: N/A
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