Journal of Gems & Gemmology最新文献

Inclusion Characteristic of Blue Sapphire from Australia 澳大利亚蓝蓝宝石的内含物特征

Journal of Gems & Gemmology Pub Date : 2021-09-01 DOI: 10.15964/J.CNKI.027JGG.2021.05.003

Fang Fei, Diao Jingru, XU Yafen

引用次数: 0

Creation and Exploration Based on Traditional Granulation Technology 基于传统造粒技术的创新与探索

Journal of Gems & Gemmology Pub Date : 2021-09-01 DOI: 10.15964/J.CNKI.027JGG.2021.05.011

Guoxing Tao, Liu Bin

引用次数: 0

Status Quo of Taishan Jade Product in Jiangmen and Its Practice of Creative Innovation 江门泰山玉石产品现状及创新实践

Journal of Gems & Gemmology Pub Date : 2021-09-01 DOI: 10.15964/J.CNKI.027JGG.2021.05.010

Chen Qingliu, Gao Hancheng

{"title":"Status Quo of Taishan Jade Product in Jiangmen and Its Practice of Creative Innovation","authors":"Chen Qingliu, Gao Hancheng","doi":"10.15964/J.CNKI.027JGG.2021.05.010","DOIUrl":"https://doi.org/10.15964/J.CNKI.027JGG.2021.05.010","url":null,"abstract":"Taishan area is rich in jade and tourism resources. After years of development, it has formed a certain scale and a series of paths including raw jade material mining, production and processing, product design, production and sales etc. Through continuous investigation, it is found that the jade industry in this region is scattered, and there is no dense jade industry with a certain competitive brand. The main problems are : (1) The expression form of Taishan jade products are simple and the product creativity and innovation is insufficient and lack of vitality; (2) Lack of professional talents; (3) Lack of influential brand and the added value of Taishan jade products is low; (4) Limited product sales, communication and promotion mechanism, narrow radiation area and other problems. Based on the above problems, this paper investigates the status quo of Taishan jade products, and discusses the integration of regional tourism resources to increase the added value of products and the innovation of product design and development model. And to explore and practice ways to address the lack of creative innovation in Taishan jade products, which may provide reference for the design and innovation of Taishan jade products, in the hope of helping the development of Taishan jade industry and make the Taishan jade culture \"come to live and become famous\".","PeriodicalId":15852,"journal":{"name":"Journal of Gems & Gemmology","volume":"55 1","pages":"87-94"},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83836442","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Chromaticity Study of Emerald under Chelsea Filter 切尔西滤镜下祖母绿色度的研究

Journal of Gems & Gemmology Pub Date : 2021-09-01 DOI: 10.15964/J.CNKI.027JGG.2021.05.002

Zhou Qingchao, Liu Hao, A. Shen

{"title":"Chromaticity Study of Emerald under Chelsea Filter","authors":"Zhou Qingchao, Liu Hao, A. Shen","doi":"10.15964/J.CNKI.027JGG.2021.05.002","DOIUrl":"https://doi.org/10.15964/J.CNKI.027JGG.2021.05.002","url":null,"abstract":"In conventional gem identification methods, whether the emeralds turn red under the Chelsea filter can be used as an auxiliary evidence for emerald identification, but this identification standard has limitations. In order to more accurately describe the colour changes of emeralds under the Chelsea filter, this article applied the colorimetry method to convert the transmittance spectra that passed through the Charles filter into chromaticity coordinates. Thus, the colour changes of emeralds under Chelsea filter can be presented in the form of data. This article first studied the influence of testing angle of spectra, contact way between emerald and Chelsea filter, and model difference of Chelsea filters and other factors on the emerald's chromaticity under Chelsea filter. Then, the optical loss was analyzed during the process of passing through the Chelsea filter. Based on the optical loss, the modulation algorithm of the Chelsea filter for emeralds' spectra was established. The distribution of colour coordinates on the CIE 1931 chromaticity diagram corresponding to the natural emerald and synthetic emerald spectra modulated by Chelsea filter is identifiable. The location distribution of chromaticity coordinates can be used as a basis to distinguish natural emeralds from synthetic emeralds to a certain extent.","PeriodicalId":15852,"journal":{"name":"Journal of Gems & Gemmology","volume":"26 1","pages":"16-24"},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88788422","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Gemmological Characteristic of Spinel Associated Colourless Sapphire 尖晶石伴生无色蓝宝石的宝石学特征

Journal of Gems & Gemmology Pub Date : 2021-09-01 DOI: 10.15964/J.CNKI.027JGG.2021.05.004

L. Jia, Diao Jingru, He Chong

引用次数: 0

Oxygen Content and Colour Change Characteristic of Blood Amber from Myanmar 缅甸血琥珀的氧含量和颜色变化特征

Journal of Gems & Gemmology Pub Date : 2021-09-01 DOI: 10.15964/J.CNKI.027JGG.2021.05.007

Dong Linling

引用次数: 0

Identification Characteristic of Purple Jadeite Treated with Bleaching, Filling and Dyeing 紫硬石漂白、填充、染色的鉴定特征

Journal of Gems & Gemmology Pub Date : 2021-09-01 DOI: 10.15964/J.CNKI.027JGG.2021.05.008

Y. Lu, D. Hui, Li Liujie, Cao Suqiao, Wang Feng, Guo Lianqiao, Yu Zhen

{"title":"Identification Characteristic of Purple Jadeite Treated with Bleaching, Filling and Dyeing","authors":"Y. Lu, D. Hui, Li Liujie, Cao Suqiao, Wang Feng, Guo Lianqiao, Yu Zhen","doi":"10.15964/J.CNKI.027JGG.2021.05.008","DOIUrl":"https://doi.org/10.15964/J.CNKI.027JGG.2021.05.008","url":null,"abstract":"To explore the identification characteristics of purple jadeite that is treated with bleaching, filling and dyeing, the gem microscope, refractometer, UV-Vis-NIR spectropho-tometer, XRF spectrometer, DiamondViewTM, FTIR and Raman spectrometer were used. The results showed that the internal structure of the purple jadeite samples treated with bleaching, filling and dyeing was destroyed, and epoxy resin was detected by infrared spectrometer and Raman spectrometer. Strong Raman peak at 1 596 cm-1 could be the characteristic peak of dyes. Luminescent images showed the characteristic blue-violet fluorescence of the polymers formed by epoxy resin and organic dyes. The UV-Vis spectra of the purple jadeite samples treated with bleaching, filling and dyeing showed the absorption band of 200-350 nm, the absorption peak at 409 nm and the absorption band near 569 nm.The internal structure of the jadeite stained by the purple polishing powder was not damaged, and the purple colour only stained on the surface since the powder particles only remained on the surface. The luminescent images showed pinkish purple fluorescence, which was caused by the purple polishing powder. The strong central absorption band at 558 nm and the weak central absorption band at 611 nm can be seen in the UV-Vis spectra, which are different from the natural purple jadeite.","PeriodicalId":15852,"journal":{"name":"Journal of Gems & Gemmology","volume":"43 1","pages":"65-74"},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90877674","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Identification Characteristic of "Recrystallized Snythetic Emerald" “再结晶合成祖母绿”的鉴定特征

Journal of Gems & Gemmology Pub Date : 2021-09-01 DOI: 10.15964/J.CNKI.027JGG.2021.05.006

L. Lei, Shen Andy Hsitien

{"title":"Identification Characteristic of \"Recrystallized Snythetic Emerald\"","authors":"L. Lei, Shen Andy Hsitien","doi":"10.15964/J.CNKI.027JGG.2021.05.006","DOIUrl":"https://doi.org/10.15964/J.CNKI.027JGG.2021.05.006","url":null,"abstract":"Recently, a kind of \"recrystallized emerald\" that claims to be created from natural emerald powder appeared in the market. In order to figure out its identification characteristics, on the basis of conventional gemmological testing, several other testing instruments were used, such as laser ablation inductively coupled plasma mass spectrometry, Fourier transform infrared spectrometer, ultraviolet visible spectrophotometer, and laser Raman spectrometer. The gemmological characteristics, chemical compositions and spectroscopy characteristics of 6 \"recrystallized emerald\" samples were tested. The inclusions of the samples include water-ripple pattern, gas-liquid two-phase inclusion, and healed cracks. The chemical composition of the sample is w(Al2O3)=18.48%~18.79%, w(SiO2)= 65.93%~66.19%, and w(Be)=49 700×10-6~50 700×10-6. The trace elements are rich in V and poor in Fe. The infrared spectra of the samples showed absorption peaks at 2 326, 5 102, 5 272, 5 456, 6 817, 7 143 cm-1 and a wide absorption band in the range of 4 000~3 400 cm-1, which indicates that the samples contain both type Ⅰ water and type Ⅱ water. The UV-Vis spectra of the samples showed absorption of Cr3+, Fe3+ and V3+in one category, and absorption of Cr3+ and V3+ in the other. Raman spectra of the samples showed the Be-O telescopic vibration (1 067 cm-1), deformation vibration of Si-O-Si (683 cm-1) and lattice vibration (321.5 cm-1). The results showed that the characteristics of the \"recrystallized emeralds\" accord with the characteristics of hydrothermal synthetic emeralds, and no evidence indicates natural genesis. The so-called \"recrystallized emerald\" is more a gimmick for businesses to attract customers. The \"recrystallized emerald\" should be correctly named as synthetic emerald.","PeriodicalId":15852,"journal":{"name":"Journal of Gems & Gemmology","volume":"4 1","pages":"51-59"},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84874412","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Characteristic and Identification of Bleached and Filled Aquamarine 漂白和填充海蓝宝石的特性及鉴定

Journal of Gems & Gemmology Pub Date : 2021-09-01 DOI: 10.15964/J.CNKI.027JGG.2021.05.005

Jia Qiong, LI Guogui, Li Xueming, X. Yao, Wang Hailong, Luo Junqi

引用次数: 0

The Analysis of Supply, Demand and Market Value of Gemstones: Taking Peridot as An Example 宝石供求与市场价值分析——以橄榄石为例

Journal of Gems & Gemmology Pub Date : 2021-09-01 DOI: 10.15964/J.CNKI.027JGG.2021.05.009

Gao Zhongqi, Yu Haiyang

{"title":"The Analysis of Supply, Demand and Market Value of Gemstones: Taking Peridot as An Example","authors":"Gao Zhongqi, Yu Haiyang","doi":"10.15964/J.CNKI.027JGG.2021.05.009","DOIUrl":"https://doi.org/10.15964/J.CNKI.027JGG.2021.05.009","url":null,"abstract":"The supply and demand of the market affect the use value of gemstone. Only sustainable and stable supply of the gemstone resource can continuously promote the consumption and meet the demand of the consumers, thus promot the realization of the gemstone value. In this paper, peridot was taken as the main research object, through extensive literature analysis, the development and change of supply-demand relationship of ancient and modern peridot was reviewed.By analyze the supply-demand relationship trend of red spinel which has the similar historical position and development process of peridot, this paper analyzed the reasons why the peridot is undervalued and its future value improvement. The results showed that the historical instability in the supply of peridot was the main reason of the decline in its popularity, and the serious of underestimation of its value today. At present, the newly discovered Yiqisong Nanshan Peridot Mine in China can provide a consistent and stable supply to the global peridot market, and the four advantages of untreated peridot products meet the needs of the Chinese and even global consumers. It can be predicted that with the stable exploitation of Yiqisong Nanshan Peridot Mine in China, the global peridot market will be continuously and stably supplied, and the peridot can gradually get rid of the current undervalued situation and return to its historical status. The research takes peridot as an example and provides a case of how gemstone supply impacts the demand and its value for the gemstone industry supply, demand and value of gemstone.","PeriodicalId":15852,"journal":{"name":"Journal of Gems & Gemmology","volume":"14 1","pages":"75-86"},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87441041","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0