Lantian jade nomi birinchi marta paydo bo'lgan "Hanshu · Geografiya", va go'zal jade ishlab chiqarilgan "Piijing (hozir Sian) Shimoliy Lantian tog'i". Keyin, kabi qadimiy kitoblar "Keyingi Xan sulolasi kitobi · Tashqi aloqalar tarjimai holi", Chjan Xenniki "Xijing Fu", "Guang ya", "Shui Jing Zhu" va "Yuanhe prefekturalari va okruglari" va boshqa qadimiy kitoblarda Lantian tilida nefrit ishlab chiqarilishi qayd etilgan. Min sulolasining Vanlilar davrida, Song Yingxing Tiangong Kaivuda aytdi: "Lantian deb ataladigan narsa Conglingdan nefrit uchun taxallusdir (Kunlun tog'i), va keyin u Lantianni Sianning Lantian deb adashib o'yladi."
Yaqin o'tkan yillarda, Shensidagi geologlar Lantianda serpantinlangan marmar nefritni topdilar, va bu qadimgi davrlarda qayd etilgan Lantian jade ekanligiga ishoning. Bu kashfiyot nafaqat geologiya jamoatchiligining e'tiborini tortdi, balki arxeologlarning qiziqishini ham uyg'otdi. Garchi bu turdagi jade juda chiroyli bo'lmasa-da, chunki Lantian qadimgi Sian shahri yaqinida joylashgan, taxminan Mohs qattiqligi bilan 4, uni qayta ishlash oson, shuning uchun qadimgi odamlar uni bezak sifatida ishlatishlari mumkin. Among the jade articles of the Han Dynasty, there are two pieces that resemble today's Lantian jade: one is a large jade shop head unearthed near the Mao Tomb of Emperor Wu of the Han Dynasty in Shaanxi, and the other is a Han Dynasty jade pendant from the Palace Museum. Many scholars believe that the quality and color of these two jade articles are very similar to the Lantian jade discovered in recent years. Ammo, whether they are really the "lantian jade" that the Dai referred to requires further investigation.
Lantian jade is a serpentinized marble, carbonate mineral, the main mineral components are calcite and serpentine, and a small amount of dolomite, xlorit, treolit, mika, talc and other minerals. Varying granular metamorphic structure, block structure. The colors of Lantian jade are white, sariq, bej, and apple green. Glass luster, yog'li porlash yoki mumsimon porlash, shaffofqa biroz shaffof, Seffiyaviy indeks 1. 50 ~ 1. 60, and the range is wide. Mohs qattiqligi 3-4, and it foams when it meets hydrochloric acid.
High-quality Lantian jade requires bright color, kuchli yorqin, yuqori shaffoflik, Yaxshi tuzilish, uniform distribution of serpentine minerals, va hech qanday yoriqlar va boshqa nuqsonlar yo'q.
High-quality Lantian jade is often made into jewelry jade and sold.
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