Blue Euclase, known as the Happiness Stone, is a rare and highly desirable mineral. Euclase crystals are noted for their blue colour, ranging from very pale to dark blue. It increases happiness by stimulating activity and the energy of Euclase is like a moving river. It helps one reach for goals and attain the ultimate in any area. It awakens creativity, and the forces of creativity and manifestation. It is also a wonderful crystal for improving communication.