2
Muscovite pseudomorph after Tourmaline on Quartz
The two original crossing Tourmaline crystals became a template for a rather unusual, showy pseudomorph: or, perhaps an epimorph instead, depending on how much the Muscovite replaced the original crystal, or if it is only a coating over still-intact Tourmaline. The enduring mystery of such examples! This kind of pseudomorphosis/epimorphosis is unusual, especially at this scale. It features a criss-cross of two extremely large prisms crystallizing from a bed of Quartz matrix, with the barnacle-like Muscovite forming mainly in bundled clusters, or books, with the lamellar layers growing parallel together in typical fashion. The C-axis faces of the Muscovite are remarkably lustrous, almost metallic. This specimen comes with a custom acrylic base.
Unknown Owner
Product details
Species
SizeLarge Cabinet
Dimensions17.0 x 25.0 x 7.0 cm
Locality
Added on06/14/2025
Comments
Known provenance
2025/03
Unknown Owner
$4,250.00purchased from Heritage Auctions (Dan Kennedy's collection)Species and Locality Wiki Pages
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