PEN-JADVGO-01 Dimensions: Approximately 3.5cm X 2.5cm Weight: Approximately 6g Origin: China Grade: A = good Colors: Green / Yellow / Transparent / White Chinese jade 35mm x 25mm ***Free waxed cotton cord*** Patterns and colors may slightly vary from one stone to another Jade is a calcium and magnesium silicate ranging from green to black, composed of iron and chromium which gives it its color. Its main origins: China, Burma, Japan, Tibet, and Mexico. Astrological signs: Pisces, Libra, and Cancer. Chakra classification: Sacral chakra, forehead, or solar plexus.