Selenite is abundant in the reddish-brown dirt in these hills. When we went, the dirt was so lose and soft that we didn't really even need the tools we had brought - we could literally just sift through the dirt with our hands.
You can see here, as well, that this isn't the more-commonly known white selenite that shimmers in the light. Instead, this is a form that is often included with the sand and the dirt (or mud) from the area and, because of that, has areas that are both brownish and more translucent.
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