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Method of Producing High-purity Tourmaline Established

Pyongyang, April 5 (KCNA) — The Central Mining Research Institute under the State Academy of Sciences in the DPRK developed a new method of mass-producing high-purity tourmaline.

Tourmaline is drawing attention as one of materials favorable for environmental and health improvement, as it emits far infrared rays and anion and contains microelements.
Recently, functional tourmaline products are getting popular for their medical effectiveness across the world.

Image credit: https://www.flickr.com/photos/markscottjohnson/3104248254/

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