Other Stones

Size: Approx 14mm(+/-0.5mm)
Hole size: Approx 1mm
Color: Black

These are Round Black Silica beads from Hokkaido, Japan. Black Silica is known for its property of widely emitting far-infrared rays even at room temperature. For this reason, it is said to have beneficial health effects, such as alleviating coldness and stiff shoulders, promoting perspiration, and activating circulation. It is also used in hot spring inns and bedrock baths. A chemical analysis has been performed on arbitrary beads of a different size, and 76% silicon dioxide (SiO2), the main component of Black Silica, was confirmed. The analysis results can be viewed "here". Sold starting from 1/4 strands for easier purchase.

[*The grid used in the image is 1cm x 1cm.]