<p>I was actully thinking about this the other day.
</p><p>Many people say they are like the cluster gems, two gems that where merged into one. However, it's been implied that they are actully <i>one </i>Rutile that split into two juring formation.
</p><p>So I don't think they can "fuse" together. But (assuming there not Era 2s) they could use shapeshifting to merge themselves into one.
</p><p>That's what I think anyway.
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