中国麻栗坡独特的富钒翡翠

IF 1.6 3区地球科学 Q2 MINERALOGY

Gems & Gemology Pub Date : 2019-11-01 DOI:10.5741/gems.55.3.338

Yang Hu, Ren Lu

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引用次数: 4

摘要

祖母绿是30多年前在中国西南部的麻栗坡县发现的。马利波祖母绿仍在开采中，预计将在未来十年内上市。本研究通过标准宝石学性质、包裹体场景、颜色特征以及先进的光谱和化学分析提供了全套数据，包括拉曼光谱、XRD、微紫外-可见-近红外光谱、EPR和LA-ICP-MS。麻栗坡祖母绿中的多相包裹体形态各异，偶见无色透明晶体。丰富的钒在八面体位置取代了铝，并作为主要的着色剂，导致黄绿色。在已知的重要矿床中，麻栗坡祖母绿具有独特的化学成分，其高V、低Cr、中等Fe以及高Li和Cs浓度的组合。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Unique Vanadium-Rich Emerald from Malipo, China

Emeralds were discovered in Malipo County in southwestern China more than 30 years ago. Malipo emeralds are still being extracted and are expected to be available over the next decade. This study provides a full set of data through standard gemological properties, inclusion scenes, color characteristics, and advanced spectroscopic and chemical analyses including Raman, XRD, micro UV-Vis-NIR, EPR, and LA-ICP-MS. Multiphase inclusions in Malipo emerald are distinct with various shapes and occasionally a colorless transparent crystal. Abundant vanadium substitutes for aluminum in the octahedral site and serves as the predominant coloring agent, leading to a yellowish green color. Among significant known deposits, Malipo emerald has a unique chemical composition in its combination of high V, low Cr, and moderate Fe, as well as high Li and Cs concentrations.

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来源期刊

Gems & Gemology 地学-矿物学

CiteScore

2.90

自引率

19.20%

发文量

期刊介绍： G&G publishes original articles on gem materials and research in gemology and related fields. Manuscript topics include, but are not limited to: Laboratory or field research; Comprehensive reviews of important topics in the field; Synthetics, imitations, and treatments; Trade issues; Recent discoveries or developments in gemology and related fields (e.g., new instruments or identification techniques, gem minerals for the collector, and lapidary techniques); Descriptions of notable gem materials and localities; Jewelry manufacturing arts, historical jewelry, and museum exhibits.