Detailed introduction:
1. Mountain materials are jade chips with no weathered surface or thin weathered layer, mostly primary minerals mined from mine outcrops or working faces, also known as mountain jade and ballast jade, which was called "Baogaiyu" in ancient times, referring to the primary jade mine produced in Gao Xue Mountain, Xinjiang.
2. Landscape refers to the flowing water of Hetian Jade Mountain, and its value is superior to mountain material, second only to seed material. The primary ore of Hetian jade mountain material produced at high altitude was rolled down to the foot of iceberg by natural factors, and was carried and washed away by natural erosion, debris flow, rain and glaciers, becoming landscape material. Xinjiang locals joked that "landscape materials are the mother of seed materials".
3. The seed material is the name of Hetian jade pebble jade material, also known as "seed material", "seed material" and "ziyu". Sub-material refers to the pebble-shaped jade material naturally formed in the river, with seed skin outside.
4. Hetian jade Gobi material is a manifestation of Hetian jade occurrence. Mainly produced in the Gobi desert in southern Xinjiang, it is formed by weathering and caving of primary ore, long-term exposure to the surface and long-term interaction with wind, sand and rain. The wetting degree and texture of Gobi material are obviously better than that of mountain material, and are comparable to those of seed material in Hetian jade.
Extended data:
Classification of origin of hetian jade:
According to the national standard GB/T 16552—2003, Hetian jade has no origin meaning, that is, nephrite with tremolite as the main mineral can be called Hetian jade, and Hetian jade can also be called nephrite.
In addition to Xinjiang, China, there are more than 20 tremolite jade deposits in the world, which are distributed in more than 20 countries and regions: Russia, the United States, Brazil, Canada, Australia, Poland, New Zealand, South Korea, North Korea and Taiwan Province Province. Among them, Canada's output ranks second in the world.
These deposits belong to serpentine tremolite jade, mainly jasper, and white jade is produced in Russia, South Korea and North Korea. Only Hetian jade in Xinjiang belongs to non-serpentine tremolite jade because of its special geological formation.
Baidu encyclopedia-Hotan jade
Baidu encyclopedia-Hotan jade mountain material
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Baidu encyclopedia-Gobi material