A stone of openness and communication, usually used to enhance expression and social ease. called "the stone of sincerity and friendship". It favors creativity and motivation and helps to channel anger and frustration. At a healing level it helps strengthen bones, teeth, and the immune system.

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This stone can be found in: Brazil, USA, Namibia, Mexico, Russia, Canada, India, Norway, Kenya, Madagascar, Myanmar, South Africa, Sri Lanka and Portugal.