Terahertz, 2×3 mm, faceted rondelles

Description

2×3 mm faceted Terahertz rondelle stones. Terahertz stone is not a gemstone in the traditional sense. It is a man-made mineral that is produced by a specific process of heating and cooling metallic alloys. This process results in a stone that emits terahertz radiation, a frequency in the electromagnetic spectrum that lies between microwaves and infrared light.  The stones are metallic-looking, very shiny, and black/grey in color.  Approximately 100 beads per strand.