absarokite
n. C2 Proficiency ab·sarokite
n. a very rare type of rock that is mostly made of the mineral feldspar. It is named after a group of people from the United States.
n. a rare igneous rock composed primarily of feldspar, specifically a variety of syenite. Named after the Absaroka people of the United States.
The geologist found a small piece of absarokite in the mountain.
The museum displayed a polished sample of absarokite alongside other rare minerals from the region.
While most syenites contain quartz, absarokite is notable for its lack of this mineral, making it a unique subject for petrological study.