Yooperlites are a variety of sodalite-rich syenite found in the Upper Peninsula of Michigan.

Rocks can look alike, but one rock is not like another. Rocks that burn when they get heated up are combusting. ... Igneous rocks contain few or no combustible elements.

The Perseverance rover collected samples from sites on the crater floor and identified igneous rocks that, ... because it doesn't look like a simple volcanic rock that flowed into the crater.

Sodalite forms in igneous rocks that crystallized from sodium-rich, silica-poor magmas. That’s how it got its name—soda + lithos, or “sodium stone," according to Rock Your World gem & art ...