phillipsite
/ˈfɪlɪpsaɪt/
noun
- A common mineral of the zeolite group, typically white or colorless, found in volcanic rocks and used in water filtration and as a soil additive.
- Farmers sometimes add phillipsite to soil to help retain moisture.
- The geologist identified the white mineral as phillipsite under the microscope.
- Phillipsite crystals are often found in cavities of basalt rocks.