Two minerals , jadeite and nephrite, are recognized as true jade. Both occur where serpentinite is found but form at higher pressures and temperatures. It typically ranges from pale to deep green , but less common varieties can be found in lavender or blue- green. They are both commonly used as gemstones . This list starts with the handful of common .
Mineral variety names and mineraloids are to be listed after the valid minerals for each letter.
Mohs, and so it will quickly either shear apart, or crumble at the edges.
As one might guess Brazilianite was first discovered in Brazil. A variety of spodumene, hiddenite occurs as pale green crystals, first discovered in North Carolina, USA. The color of the green semi-precious stones comes from the intrusion of chromium. There exist other green gemstones of the spodumene mineral not colored by chromium, and therefore not considered .