> Serpentine is one of the most common minerals in the Earth's crust — like 80% of it. Serpentines are common but they do not make up 80% of the crust. Feldspa

> Serpentine is one of the most common minerals in the Earth's crust — like 80% of it. Serpentines are common but they do not make up 80% of the crust. Feldspars are the most common minerals in the crust and they make up less than 60% of it [1]. [1] https://deq.nc.gov/energy-mineral-and-land-resources/geological-survey/geoscience-education/mystery-minerals-fact-sheet/open https://deq.nc.gov/energy-mineral-and-land-resources/geologi...