Variation in Gemological Characteristics in Tsavorites with Different Tones from East Africa
Crystals, 2022 In this paper, the influencing factors of the color and the gemological changes of tsavorites with different tones from East Africa were studied. The gemological characteristics of 35 different green tones in tsavorites were collected based on the ...
Yuanmeng Ma, Ying Guo
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Crystals, 2022 Currently, most of the popular spinels in the jewellery market come from Myanmar and Tajikistan. It is well known that provenance is one of the main factors affecting the value of a gemstone, and the geographic origin of a gemstone can be determined by ...
Yi Zhang, Jing-Ran Zhu, Xiao-Yan Yu
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Gemological and Mineralogical Studies of Greenish Blue Apatite in Madagascar
Crystals, 2022 Madagascar is known as the ‘Island of Gemstones’ because it is full of gemstone resources. Apatite from Madagascar is widely popular because of its greenish blue Paraiba-like color. This study analyzes apatite from Madagascar through standard gemological
Zhi-Yi Zhang +3 more
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Gemological and Chemical Characterization of Gem-Grade Peridot from Yiqisong, Jilin Province
CrystalsPeridot has a long history and is deeply loved by people for its unique olive-green color. The Yiqisong peridot deposit in Jilin Province is a newly discovered peridot deposit that still deserves systematic research.
Jina Li, Yi Zhao, Bo Xu
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Jewelry Morocco septaria. Gemological characteristics and mineral composition
Известия высших учебных заведений: Геология и разведка, 2023 Background. Septaria, comprising calcareous-clay nodules with calcite veins, are widely used as jewelry and ornamental materials. Septaria from Morocco represented on the world and Russian markets of jewelry and ornamental stones remain gemologically and
D. A. Petrochenkov
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Gemological characteristics and inclusions of green rutilated quartz from Huanggangliang, Inner Mongolia. [PDF]
RSC AdvNormally, various minerals exist in quartz as inclusions. In this study, methods such as gem microscopy, polarizing microscopy, Fourier transform infrared (FTIR) spectroscopy, Raman spectroscopy, and electron probe microanalysis (EPMA) were used to ...
Zhao S +5 more
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Gemological Characteristics of Lvwen Stone and Its Color Genesis
Minerals, 2022 “Lvwen stone” is a yellow-green carbonate jade gemstone. In this study, the gemological characteristics and color genesis of Lvwen stone were investigated using conventional gemological testing methods and analytical techniques, such as X-ray diffraction
Zhendong Liu +10 more
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Inclusions and Gemological Characteristics of Emeralds from Kamakanga, Zambia
Minerals (Basel, Switzerland), 2023 Currently, Zambia is one of the world’s major emerald-producing countries. In this study, emerald samples from Kamakanga, Zambia, were systematically analyzed by standard gemological tests, microscopic observation, Raman spectroscopy test of mineral ...
Xiao-Yan Yu
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Mineralogical And Gemological Characteristics Of Metaophiolite Hosted Corundum (Malatya-Türkiye)
Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2021 The corundum is found in the rocks of the Berit metaophiolite in Eastern Anatolia, near Doğanşehir a province of Malatya. Metaophiolitic rocks consist mainly of garnet metagabbro, granulite, amphibolite, mylonitic amphibolite, garnet amphibolite ...
Fikret İşler +5 more
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A comprehensive study on the gemological and mineralogical characteristics and coloration mechanisms of four color varieties of natural topaz. [PDF]
RSC AdvTopaz, a mineral with variable composition, is commonly utilized as a gemstone. Its extensive distribution and diverse coloration have attracted considerable academic interest.
Zhang X, Wang N, Gong Y.
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