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November-December 2015

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Mineral Mysteries: Hexagonal Holes in Albite and Microcline from the Crystal Peak Area, Teller County, Colorado—A Mystery Revisited

FOR MANY YEARS collectors have recovered microcline and albite (variety cleavelandite) specimens from various localities within the Pikes Peak batholith that had unusual irregular hexagonal holes. Speculation abounded as to what they represented, with some reporting that these holes once contained smoky quartz crystals that had been selectively etched out (Jacobson 1986) or had fallen or been “pushed” out (White 2014). These are anecdotal explanations that have been in oral circulation for decades. This article presents an alternative hypothesis to explain the origin of these holes.

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