Listvenite as gemstone: the Antina Čuka occurrence (Eastern Serbia)

IF 2.2 4区地球科学 Q2 GEOSCIENCES, MULTIDISCIPLINARY

Acta Montanistica Slovaca Pub Date : 2023-02-20 DOI:10.46544/ams.v27i4.14

引用次数: 0

Abstract

Antina Čuka listvenite originated by hydrothermal alteration of small ophiolite mass caused by Paleogene magmatic activity. Mineralogical and petrological examination of the listvenite revealed serpentine-rich, silica-rich, and carbonate-rich varieties of the listvenite. Typical minerals are serpentine (group), carbonates (calcite, dolomite, and magnesite), pyrite, gersdorffite, Cr-spinel, barite, limonite, and native Ag. Gemological analysis revealed all serpentine varieties from Antina Čuka (serpentine-rich listvenite, serpentine-rich listvenite with magnetite and fresh serpentinite) have values of both refractive index and specific gravity in the range for serpentine group minerals. A Refractive index value of 1.54 for silica-rich variety confirms the presence of quartz. The results of lapidary processing have proven that both listvenite from Antina Čuka and serpentinite host rock are attractive gemstones. The adequate types of processing of Antina Čuka listvenite are plain cut (different-shaped cabochons) and glyptography/carving.

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作为宝石的Listvenite：AntinaČuka产状（塞尔维亚东部）

AntinaČuka listvenite源于古近系岩浆活动引起的小型蛇绿岩块的热液蚀变。对硅钒矿的矿物学和岩石学研究表明，硅钒矿富含蛇纹石、二氧化硅和碳酸盐。典型的矿物有蛇纹石（组）、碳酸盐（方解石、白云石和菱镁矿）、黄铁矿、gersdorfite、铬尖晶石、重晶石、褐铁矿和天然Ag。宝石学分析表明，AntinaČuka的所有蛇纹石品种（富含蛇纹石的listvenite、富含蛇纹岩的Listvenist和磁铁矿以及新鲜蛇纹石）的折射率和比重都在蛇纹石族矿物的范围内。富含二氧化硅的品种的折射率值为1.54，证实了石英的存在。宝石加工的结果已经证明，AntinaČuka的listvenite和蛇纹岩宿主岩都是有吸引力的宝石。AntinaČuka listvenite的适当加工类型是平切（不同形状的凸圆形）和埃及铭文/雕刻。

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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来源期刊

Acta Montanistica Slovaca 地学-地球科学综合

CiteScore

3.60

自引率

12.50%

发文量

审稿时长

30 weeks

期刊介绍： Acta Montanistica Slovaca publishes high quality articles on basic and applied research in the following fields: geology and geological survey; mining; Earth resources; underground engineering and geotechnics; mining mechanization, mining transport, deep hole drilling; ecotechnology and mineralurgy; process control, automation and applied informatics in raw materials extraction, utilization and processing; other similar fields. Acta Montanistica Slovaca is the only scientific journal of this kind in Central, Eastern and South Eastern Europe. The submitted manuscripts should contribute significantly to the international literature, even if the focus can be regional. Manuscripts should cite the extant and relevant international literature, should clearly state what the wider contribution is (e.g. a novel discovery, application of a new technique or methodology, application of an existing methodology to a new problem), and should discuss the importance of the work in the international context.