paragonite
/pəˈræɡənaɪt/
noun
- A mineral, a type of mica, that is similar to muscovite but contains sodium instead of potassium.
- The geologist identified the shiny flakes in the sample as paragonite.
- Unlike muscovite, paragonite is less common and harder to distinguish.
- Paragonite is often found in metamorphic rocks like schist.