7000 数年前, mankind had known jade and began to use it. 名前 “ジェイド” originated during the Spanish conquest of Central and South America, つまり “smart stone” in Spanish. It is said that the Spaniards at that time believed that this jade had the ability to protect the body and resist various diseases. したがって, it has become the jewelry that people often wear.
で 1863, French scientists confirmed that “ジェイド” is the general term for two different minerals and rocks. They are Jadeite and NephDhrite. The boundary between the two is difficult to define, それで “ジェイド” is used as their common name. 名前.
Jadeite and nephrite meet the requirements of “jadeness”, and they are minerals with tough texture and compact crystal grains, and both belong to “true jade”. The representative mineral of jadeite is jade from Myanmar, and the representative mineral of nephrite is Hetian jade from Xinjiang, 中国.
ドゥシャン翡翠 (fossil) 南陽産, 河南省, 秀翡翠 (蛇紋岩の翡翠) produced in Liaoning, ターコイズ (turquoise jade) produced in Xiangyang, 湖北省, 等, because they do not meet the main conditions of “ジェイド”, namely The texture is tough and the structure is delicate and dense, so it can only be regarded as “like jade” の代わりに “true jade”.
‘Jadeite’ is equivalent to jade. After the jadeite entered China from Myanmar in the early years, this emerald green, スムーズ, crystal clear jade immediately robbed of the light of nephrite and became the favorite of collectors. “ネフライト” has always been China. The traditionally used jade, the commercial name is “mutton fat white jade.” Its origin is distributed in Xinjiang and Yunnan, 中国. It was used for Buddhist purposes in the early years, and later it was made into jade, jade seal, jade belt, jade pendant, jade paperweight, 等. China The similar jade produced includes Xiu jade, ドゥシャン翡翠, hydrocalcium garnet jade, hard sodite jade, and quartzite jade.
The interpretation of the word Jadeite in the English dictionary is “エメラルド” そして “ジェダイト”. Can these two names be equal? According to the analysis of modern jewelers, “ジェダイト” is not completely equivalent to “ジェダイト”, but the jewelry industry refers to “ジェダイト” として “ジェイド” そして “ジェダイト” is also the commercial name of “ジェダイト”. 科学的な観点から, jadeite is an aggregate of pyroxene minerals that are dense, massive, 高い硬度を持つ, extremely tough and mainly composed of jadeite. The chemical formula of jadeite is NaAI (Si206). When its content in jadeite is as high as 99%, it is generally white; while green jadeite usually contains more diopside. 加えて, jadeite may also contain a small amount of calcium iron pyroxene, chromite, albite and hornblende.