Nepheline syenite with sodalite.
#Sodalite Na8(Al6Si6O24)Cl2 is royal blue varieties widely used as an #ornamental #gemstone. It is a member of the sodalite group with #lazurite, #tugtupte and etec.. First discovered by Europeans 1811 in #Greenland. It is one of the most beautiful #stones for me.

#geo #geology #mineral #Earth #science #feldspathoid #minerology