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GB/T 34098-2017: Quartzose jade -- Classification and nomenclature
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Quartzose jade -- Classification and nomenclature
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GB/T 34098-2017
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Basic data | Standard ID | GB/T 34098-2017 (GB/T34098-2017) | | Description (Translated English) | Quartzose jade -- Classification and nomenclature | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | D59 | | Classification of International Standard | 39.060 | | Word Count Estimation | 6,694 | | Date of Issue | 2017-07-31 | | Date of Implementation | 2018-02-01 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | GB/T 34098-2017: Quartzose jade -- Classification and nomenclature---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Quartzose jade - Classification and nomenclature
ICS 39.060
D59
National Standards of People's Republic of China
Quartz jade classification and naming
2017-07-31 Posted
2018-02-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
China National Standardization Administration released
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard proposed by the Ministry of Land and Resources.
This standard by the National Gems Standardization Technical Committee (SAC/TC298) centralized.
This standard was drafted unit. Ministry of Land and Resources jewelry jade jewelry management center, China Jewelry Jade Jewelry Association.
The main drafters of this standard. Chen Hua, Ke Jie, Bi Lijun, Zhou Danyi, Zhang Yong, Lu Taijin, Bao Xue, Saranli, Liu Yi.
Quartz jade classification and naming
1 Scope
This standard specifies the definition of quartz jade, identification characteristics, classification and naming.
This standard applies to quartz jade raw materials and finished products.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version applies to this article
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 16552 name of jewelry jade
GB/T 16553 jewelery identification
3 Terms and definitions
GB/T 16552, GB/T 16553 and defined by the following terms and definitions apply to this document.
3.1
Quartz quality jade quartzosejade
Naturally produced, to meet the process requirements, mainly quartz quartz crystal - cryptocrystalline mineral aggregates, may contain a small amount of hematite, iron
Mine, mica, kaolinite, opal, organic matter and so on. Refractive index 1.53 ~ 1.55, density 2.53g/cm3 ~ 2.72g/cm3 (sometimes can be as low as
2.48 g/cm3 or up to 2.95 g/cm3) with a Mohs hardness of 6-7 (sometimes as low as 5.5).
3.2
Clear crystalline phanerocrystaline
A single mineral crystal particle can be identified under 10X magnification, and the vast majority of the mineral particles have a particle size greater than 20μm.
3.3
Cryptocrystalline cryptocrystaline
At 10X magnification, a single mineral crystal particle can not be identified, and the vast majority of the mineral particles have a particle size of less than 20 μm.
3.4
The basic name of quartz jade classicnamesofquartzosejade
Quartz jade species mineralogy, petrology, materials science and traditional gemmology name, is the name of quartz jade must be used for the district
Do not differ the name of the breed.
3.5
Quartz jade trade name tradenamesofquartzosejade
In addition to the basic name of quartz jade, jewelry jade circulation is widely used and generally accepted by the other names of quartz jade, such as
Quartet-related standards such as quartz jade alias.
4 categories
In accordance with the mineral composition, structure and appearance characteristics, quartz jade is divided into three major categories, seven varieties, see Table 1.
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