FLUORITE

ABOUT THE SPECIMEN

Cute, small cab pink fluorite with classic Chamonix style! Several etched  intergrown octahedrons are well placed on a granitic matrix, forming a 2.8 cm chain. Some sharp terminations can still be seen in the grouping, despite the etching. This specimen is in great condition, with only minor chipping that can't be seen from the display side.

MORE INFO

Alpine fissure minerals from the Mont Blanc massif formed 5–25 million years ago as collision between the African and European plates generated open cavities in the Hercynian granite, into which high-temperature, high-pressure hydrothermal fluids deposited crystals as conditions cooled. Chamonix fluorite is the product of late-stage fluorine-rich fluids entering those same fissures, with the pink to deep rose-red coloration attributed to irradiation-induced color centers and possibly trace rare-earth substitution - the mechanism is not fully resolved. Crystals occur as sharp octahedra, sometimes stepped or modified, typically on adularia matrix; the finest examples are gemmy throughout rather than merely surface-translucent. Among the most geographically distinctive fluorite localities known, Chamonix shares its particular pink octahedral habit only with the Polar Urals. Recovery is carried out by cristalliers - often multi-generational families of mountaineering crystal hunters working above 3,000 meters under genuine physical risk - and glacier retreat tied to climate change has been gradually exposing previously inaccessible pockets, introducing an element of unpredictability to supply. The effort required to retrieve specimens, combined with the inherent scarcity of pocket finds, keeps truly fine material consistently in short supply relative to collector demand.