Chalcedony on Smoky Quartz “casts” after Laumontite Marcasite and there’s even a bit

and there’s even a bit of attached matrix on the back

Specimen # HYALMEX41617

The piece features a very sharp

Paravauxite

and the fact that there are THREE DISTINCT TWINS together

Chalcedony on Smoky Quartz “casts” after Laumontite Marcasite and there’s even a bitThis locality in the Cripple Creek District (purportedly in an old mine shaft) produced unique epimorphs or "casts" of Smoky Quartz and Chalcedony replacing Laumontite. The Smoky Quartz has a distinctive muted silvery grey color, with very little luster and a somewhat stalactite esque growth due to the way the Quartz overgrew the preexisting Laumontite. The lack of luster on the Quartz is most likely due to a micro coating of Chalcedony. The biggest