gems, jade, fei cui, pyroxene jade, jadeite, Myanmar, Burma, Guatemala, Italy, Broken Bangle

Fei Cui is a kind of jade that is defined as a granular to fibrous polycrystalline aggregate composed solely, or principally, of any of the following, or any combination of the following: jadeite, omphacite and kosmochlor (GAHK, 2014). For decades, Myanmar was the only source of “Imperial green” Fei Cui. Guatemala is another historical source of jade. Since 2023, “Imperial green” Fei Cui from Guatemala has been getting more popular in China, especially after a new mining area was discovered in Morales, Izabal Department, Guatemala. Besides, a small amount of high-quality Italian Fei Cui has also appeared in the market in the past four years. To examine the possibility of origin determination of Fei Cui, a set of high-quality green Fei Cui from Myanmar, Guatemala and Italy was collected and examined.