GB/T 31432-2015 English PDF

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GB/T 31432-2015: Dushan Yu -- Denomination and classification
Status: Valid

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Basic data

Standard ID: GB/T 31432-2015 (GB/T31432-2015)
Description (Translated English): Dushan Yu -- Denomination and classification
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: D59
Classification of International Standard: 39.060
Word Count Estimation: 17,137
Date of Issue: 2015-05-15
Date of Implementation: 2015-06-01
Quoted Standard: GB/T 16553-2010
Regulation (derived from): National Standard Announcement 2015 No. 15
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
Summary: This Standard specifies the definition of Dushan Jade, identifying characteristics, classification and naming. This Standard applies to Dushan of raw materials and products.

GB/T 31432-2015: Dushan Yu -- Denomination and classification

---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.
Dushan Yu. Denomination and lassification ICS 39.060 D59 National Standards of People's Republic of China Dushan naming and classification Issued on. 2015-05-15 2015-06-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. This standard by the National Standardization Technical Committee jewelery (SAC/TC298) centralized. This standard was drafted. Geological Museum, Henan Province, Henan Province, Jewelry Trade Association, Nanyang Municipal Bureau of Land and Resources. The main drafters of this standard. Xu Li, Liu Changxiu, Zhang Liao, turnkey Duo, Wang Baoxiang, Zhang Deqing, with hair spring, containing Pu Yong, DING, Xu Yang, Gu Songhai, Zhang Lixia. Dushan naming and classification

1 Scope

This standard specifies the definition of Dushan Jade, identifying characteristics, classification and nomenclature. This standard applies to Dushan Jade raw materials and products.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. GB/T 16553-2010 jade jewelry appraisal

3 Terms and Definitions

The following terms and definitions apply to this document. 3.1 Dushan DushanYu In basic plagioclase, zoisite, muscovite (chromium), amphibole fibers as the main mineral composition of fine altered anorthosite, gabbro, to Green, multi-colored white, brown, red, yellow, black, is characterized by the coexistence; by magmatic differentiation, dynamic metamorphism and hydrothermal multiperiodic broken along fracture zone Filling and replacement of a group ultrabasic complex rock formed. Nanyang City, Henan Dushan behalf of origin.

4 features

4.1 Mineral composition The main minerals. mafic plagioclase, zoisite, muscovite (chromium), amphibole fibers, etc; secondary minerals. pyroxene, biotite, actinolite, etc; Trace minerals. diopside, sphene, chromite. There are differences between different colors of Dushan main mineral composition. 4.2 Chemical composition Dushan chemical composition mainly SiO2, Al2O3 and CaO, containing TiO2, Cr2O3, FeO, MnO, MgO, Na2O and Co, Ni, Sr, V and other trace elements. 4.3 crystalline state Crystal aggregates, often has a fine, fine fiber dense block. 4.4 Properties of Materials Common colors. green, white, brown, red, yellow, blue, black; two or more colors and more composed, was banded, lumpy, disseminated or gradient over Distribution crossing. Luster. vitreous luster, visible oil sheen. Mohs hardness. 5.5-7. ......

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