1. Bowen's reaction series:
|I forgot where I found this, but if you know please tell me and I will add proper credit.|
2. Crystal Formation in Phaneritic and Aphaneritic rocks
In this analogy there are two sets of kids with a lot of Lego blocks in two separate rooms. The Lego blocks are analogous to the molecules in the melt, and the shapes they are built into are the crystal shapes of the minerals. The group in the first room isn't given much time and each kids quickly puts together very small geometric shapes. This is analogous to Aphaneritic rocks cooling on the surface. In the other room, the kids are given a lot of time to build their shapes, and instead combine the shapes each kid makes into much larger shapes. This is analogous to Phaneritic rocks.
So do these analogies make sense to you? Can they be improved? And if so, how?