"Given the nearness of Mugeary and Glenelg, I consider it to be a great cosmic coincidence that on its way to Glenelg, the Curiosity rover found a rock that can legitimately be called a mugearite!"
BBC: Cosmic coincidence on the road to Glenelg
2.
And that has Prof Stolper and the rest of the rover science team leaning (with a lot of caveats) towards a classification that sits on a well-established sequence of alkaline igneous rocks - one that goes by the name "mugearite".