Jade

Jade is actually the gemstone name for two different mineral forms, Jadeite and Nephrite. Nephrite jade is the most commonly used variety of Jade.

Mineral Species: Jadeite or Nephrite

Chemical Formula: Jadeite NaAlSi₂O₆ or Nephrite Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂

Mohs Scale Hardness: 6 - 7

Location: China, Africa, Burma, Russia, USA.

Typical Appearance: Can be yellow, red, black, green, white, or purple.