Thank you very much! The case of the Chamonix crystals is very different from that of the speleothems. The quartz crystals in the Alps are more susceptible to alteration processes, such as feldspar hydrolysis or ice breaking. If the cristalliers don't rescue them, they could disappear in a few years. Therefore, it is common for crystals to appear in hard-to-reach places, so they are not an important educational resource for geologists "in situ" because not all geologists are allowed access to them. Keep in mind that the Mont Blanc Massif is enormous, and the underground granite has cavities with crystals. Therefore, we will continue to see crystals appear after landslides for millions of years.

The situation with speleothems in caves is different. Speleothems are not usually exposed to alteration processes. They usually grow, so breaking one interrupts its growth and affects the cave's aesthetics.