. Lawsonite has regarding the same composition as anorthite. But plagioclase (which includes anorthite and albite factors) becomes unstable at substantial pressure, Therefore the anorthite part hydrates and we get lawsonite rather. The inexperienced jadeite Extremely frequent within the Earth's crust, igneous rocks are volcanic and kind from molten material. https://socialstrategie.com/story13375538/considerations-to-know-about-what-is-the-difference-between-rocks-and-minerals