Apophyllite

Watch a video of this specimen by following the Vimeo link below: https://vimeo.com/1182052047/d0a2f2444a The Deccan traps, located in western India, are one of the largest volcanic provinces on Earth. There, in several places, geodes were (and are keep getting) found within the basalt flows, when large volumes of rock are removed for the use of various human activities, such as aggregate production for public works, road cuts or well digging. In some instances, these geodes are filled with late volcanic-hydrothermal zeolite group species. Actually, the Deccan traps became quickly over the 1980's the premier worldwide locality for a number of finely crystallized species: apophyllite, stilbite, heulandite, scolecite, okenite, gyrolite, cavansite, pentagonite and a few others. Here is an large specimen from Pune, displaying green prehnite pseudomorph-perimorph after laumontite in combination with gyrolite! Ex collection Lefebvre. Jean-Claude Lefebvre was born on May 8, 1942, in Liège. A graduate in geography, he began his career as a teacher before becoming a high school principal. A man of wide-ranging interests, he was passionate about astronomy, travel, and numismatics—as well as mineralogy, to which he devoted over thirty years, building his collection between 1980 and 2010. His approach was that of a rigorous and deeply committed autodidact. He initially developed his collection horizontally, aiming to represent as many mineral species as possible, more than 380 in total. He then refined it vertically, focusing on aesthetics, specimen integrity, and overall balance. He possessed a keen eye, that rare ability to instantly recognize the right piece, one that required no compromise. Among the highlights of his collection are an outstanding group of specimens from the Congo, along with a remarkable suite from Mont Saint-Hilaire, Canada, a legendary locality renowned for its rare species and complex crystal formations. Ex. J.C. Lefebvre (Belgium)

Estimación:€150

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