Stimulates pineal and pituitary glands. Aids eyesight. Emotional balancer. Enhances intuition. The full spectrum of colours resonates with all chakras. Helps conscious connection with highest aspect of being. Chakra(s): heart and others, depending on colour.

SiO2 nH2O. Hardness 5.5-6.5. Locality: Andes Mts., South America; Queensland, Australia; New South Wales, Australia; British Columbia, Canada; Peru, South America; Mexico; Georgia, USA; Oregon, USA; Idaho, USA; Honduras.