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GB/T 38816-2020: Agate - Beihong agate - Testing
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GB/T 38816-2020	English	189	Add to Cart	3 days [Need to translate]	Agate - Beihong agate - Testing

GB/T 38816-2020: Agate - Beihong agate - Testing

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Agate - Beihong agate - Testing ICS 39.060 D59 National Standards of People's Republic of China Agate Northern Red Agate Identification 2020-06-02 release 2020-12-01 implementation State Administration of Market Supervision and Administration Issued by the National Standardization Management Committee

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard is under the jurisdiction of the National Jewelry and Jade Standardization Technical Committee (SAC/TC298). This standard was drafted by. China University of Geosciences (Beijing) Jewelry College, Heilongjiang Provincial Import and Export Jade Industry Association, Harbin Customs Technical Center, Xunke County People's Government of Heilongjiang Province, Jinhong Jewelry Co., Ltd. The main drafters of this standard. He Xuemei, Xu Tieying, Yuan Qiang, Qi Binglian, Shi Yaohui, Wang Xiaohua, Shen Honglin, Li Tiezhu, Shi Li, Guo Junjiu, Fang Damin, Wang Chunsheng, Zhang Yong, Lu Zhiyun, Wu Fan, Jin Xinyu, Wang Xinchen, Zhang Ping, Pan Yanmei. Agate Northern Red Agate Identification

1 Scope

This standard specifies the identification characteristics and identification methods of northern red agate. This standard applies to raw materials and products of Northern Red Agate.

2 Normative references

The following documents are essential for the application of this document. For dated reference documents, only the dated version applies to this article Pieces. For the cited documents without date, the latest version (including all amendments) applies to this document. GB/T 16552-2017 Name of jewelry and jade GB/T 16553-2017 appraisal of jewelry and jade

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 Beihongagate The main mineral is α-quartz, the secondary minerals are plagioclase and goethite, and the appearance is mainly dark red and brown-red, often with a yellow tone. Transparent to transparent cryptocrystalline aggregates. Its representative place of origin is located in the Ating River Basin in Xunke County, Heihe City, Heilongjiang Province, and the Tangwang River in Yichun City. Area, the Nenjiang River Basin, the Songhua River Basin, and the Xing'an Mountains area. 3.2 Peak area ratio A501/A463 The ratio of the area of the 501cm-1 characteristic peak of climactic silica to the area of the 463cm-1 characteristic peak of α-quartz in the agate Raman spectrum. 3.3 Crystal core There is a structure of self-shaped quartz crystal in agate.

4 Identification

4.1 Identification items The appraisal items and selection principles are implemented in accordance with 4.2 in GB/T 16553-2017. 4.2 Identification characteristics 4.2.1 Mineral composition Main mineral. α-quartz. Secondary minerals. attapulgite, goethite. ...