北海道黑矽石勾玉 28x15x8mm 1顆
其他石材
單顆重量：約 4.67 克
單顆尺寸：約 28x15x8 毫米（+/-1 毫米）
孔徑：約 2.5 毫米
顏色：黑色
這是一款由北海道黑矽石製成的逗號形珠子。 黑矽石的特點是即使在室溫下也能發出廣泛的遠紅外線。 因此，據說它具有緩解寒冷敏感症和肩頸僵硬、促進排汗、活化循環等健康益處，並用於溫泉旅館和岩盤浴中。 我們對這塊黑矽石的隨機圓珠進行了分析，證實其中含有 76% 的二氧化矽（SiO2），這是黑矽石的主要成分。 分析結果可在此查看。
[*圖片中的網格為 1 公分 x 1 公分。]
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