Pink chalcedony nodule Dolomite UV REACTIVITY microcline feldspar can

UV REACTIVITY microcline feldspar can have slight red fluorescence which was present in many of these specimens

On other specimens the ends appear cubic and can take on a purple amethyst hue

***The "crack" visible in images is a natural plane through the sandstone that is semi-stable

possibly another shift in growing conditions causing a transition from hyalite to a different type of quartz

There are more quartz crystals and sprouting growth forms spread across the surface

Pink chalcedony nodule Dolomite UV REACTIVITY microcline feldspar canLocale: Yankee Dog Claim, Hidalgo, New Mexico Approx size: 1. 75" Approx weight: 38g Pink chalcedony nodules, sometimes called "chalcedony desert roses," have been discovered across the southwest. They were prolific from this locale back in the 1990s, but today are much harder to come byat least with any size or quality. The material is known for its strong UV reaction and undulating ropy, botryoidal forms. Pink chalcedony often grows shapes like a