I don't know. I see trees, or maybe one tree (a banyan?) here. But then, I'm inclined to see trees and living things. I don't know why the salts formed in this pattern. And, yes, there is a very fine covering of salt crystals in the "empty areas" between the trunks and the top. The crystals themselves, are very fine, just deposited unevenly. Unlike the Jupiter salts, which had a hard, bright sparkle to them, these have a soft creamy look to them.