Chalcedony on Smoky Quartz “casts” after LaumontiteThis 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

the crystal itself is virtually WATER CLEAR

which is EXCEPTIONALLY RARE in my experience with the material

Great quality all around

the price would be considerably higher

The piece hosts dozens of excellent

This piece is remarkable for Bolivia as it features a type of crystallization that is virtually unheard of for this country

This specimen features dozens of exceptionally rare

this piece shows very unusual "wormholes" that gives it an amazingly organic appearance

Specimen# CO712B65

highly lustrous / vitreous

Specimen # BOL711B256

This specimen hosts several sharp