Rocks are not all equal. Before you call me a rock racist, what I mean is that they are very different in terms of chemistry and this causes them to behave very differently when they are altered by hydrothermal fluids. In the case that I am going to show, this means that some rocks are basically indifferent to chemical alterations, while in others the interaction with fluids produces beautiful crystals.
If you remember my previous post, you will remember that I have left you with one question: what are the ‘dark balls’ in the granite?… Leggi tutto »Cosa sono le 'palle nere' nel granito di Sant'Andrea (Isola d'Elba)?
I was a student the first time I visited the outcrops of Sant’Andrea in the far 2011. We must have looked really weird: a class… Leggi tutto »Cosa sono i 'sassi bianchi' incastonati nelle rocce di Sant'Andrea (Isola d'Elba)?
The glacier of Neves, located on the Italian side of the Eastern Alps at the border with Austria, close to the Neves Lake (Neves-Stausee), is… Leggi tutto »Quando due magmi diversi si incontrano (Neves, Alto Adige)
Joshua Tree is one of the most magnificent places where I have ever been. The desert landscape of southern California gifts us with many breath-taking… Leggi tutto »Abbiamo un contatto! Quando il magma incontra la roccia (Joshua Tree, California)
The small town of Castiglioncello is one of many seaside localities in Tuscany that are popular for bathers in the summertime. The prominent cliffs, battered… Leggi tutto »L'antico oceano nascosto sulla costa di Castiglioncello