Nephrite from
Mengshan nephrite deposits, Yushui District, Xinyu, Jiangxi, China
| Locality type: | Deposit | |
| Classification | ||
|---|---|---|
| Type: | Nephrite | |
| Comments: | The color of Xinyu nephrite is a light yellow-green, which is relatively rare in nephrite of other regions. Compared with previously reported nephrites from Xinjiang and Qinghai in China, as well as nephrites from South Korea and Russia, it was observed that Xinyu nephrite also exhibited a relatively uniform color. The uniform and beautiful color indicates that Xinyu nephrite has a high value as a gemstone. The nephrite from Xinyu comprises predominantly tremolite (Tr: >98 vol.%), with other minor minerals including diopside, calcite, quartz, and apatite. In the samples, two types of tremolite grains were observed. The first type of grains appeared as microscopic fibrous-felted textures. Most of these grains were straight and dense, in a directional parallel arrangement. The outlines and shapes are not distinguishable, but the grains are tightly bound and evenly distributed. These types of grains are commonly observed, which is probably the main factor determining the fine and smooth macroscopic appearance of Xinyu nephrite. The second grains appeared as coarse, columnar textures which are ~500 µm in length and ~115 µm in width. The core of the coarse grains was often replaced by fine tremolite grains, and the incomplete replacements resulted in the shape of the original coarse grains being retained. | |
| Confirmation | ||
| Validity: | Believed Valid | |
| Data | ||
| Mineral Data: | Click here to view Nephrite data | |
| Locality Data: | Click here to view Mengshan nephrite deposits, Yushui District, Xinyu, Jiangxi, China | |
| Data Identifiers | ||
| Mindat Occurrence Record ID: | 1623998 | |
| Long-form Identifier: | 1:3:1623998:6 | |
| GUID (UUID V4): | 0 | |
| References | ||
