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.
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… Read More »We have contact! When magma meets rock (Joshua Tree NP, California)