Spectroscopic and crystallographic analysis of nephrite jade gemstone using laser induced breakdown spectroscopy, Raman spectroscopy, and X-ray diffraction

Khan, Rameez Abbas; Haq, Muhammad Anwar ul; Qasim, Muhammad; Afgan, Muhammad Sher; Haq, Sami Ul; Hussain, Sajjad

doi:10.1016/j.heliyon.2022.e11493

Cited by 9 publications

(11 citation statements)

References 41 publications

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“…The correctness of the values obtained was controlled by regular measurements of its own internal standard GI-1 quartz and laboratory IGEM RAS Polaris quartz. The measurement error of the obtained δ 18 O values was at the level of (1s) ± 0.2 %.…”

Section: Of 17mentioning

confidence: 87%

“…An important indicator of nephrite formation processes is the isotopic composition of oxygen. At the Fengtien deposit in Taiwan, for the ordinary nephrite, δ 18 O is 4.5-5.3 %, for the wax-like nephrite -4.7-5.0 %, and for the nephrite with the "cat's eye" effect -5.1-5.3%. Diopside from diopsidite -3.7-4.5 %.…”

Section: Discussionmentioning

confidence: 98%

“…We have studied the oxygen isotope composition of the rocks of the Nyrvomenshor deposit (Table 5). The isotope composition of diopsidites -6.8 and 7.8 ‰ δ 18 O. The hydrogarnet rodingite values are even lower -6.6 ‰ δ 18 O. Nephrites have a heavier isotope composition: 8.2-9.7 ‰ δ 18 O (based on six analyses).…”

Section: Isotope Composition Of the Rocksmentioning

confidence: 96%

“…The isotope composition of diopsidites -6.8 and 7.8 ‰ δ 18 O. The hydrogarnet rodingite values are even lower -6.6 ‰ δ 18 O. Nephrites have a heavier isotope composition: 8.2-9.7 ‰ δ 18 O (based on six analyses). The isotope composition of jadeite is close to nephrite -8.8 % δ 18 O.…”

Section: Isotope Composition Of the Rocksmentioning

confidence: 96%

“…The Fengtien deposit is known in Taiwan [12][13][14]. Recently, nephrite from the border areas of Pakistan and Afghanistan has appeared on the market [15][16][17][18]. The Shaitantas deposit in the Karaganda region of Kazakhstan [19], Co Phuong deposit in Shonla Province in Vietnam have been poorly studied.…”

Section: Of 17mentioning

confidence: 99%

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Nyrdvomenshor Gem Stones Deposit, Polar Urals, Russia

Kislov¹,

Попов²,

Nurmukhametov³

et al. 2023

Preprint

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We have studied quality characteristics, chemical, mineral and isotope composition of nephrite, diopsidite and rodingite of the Nyrdvomenshor deposit in the Polar Urals. We applied the visual petrographic and mineralogical studies, X-ray spectral fluorescence, ICP-MS analysis, scanning electron microscope with the dispersive microanalysis system, oxygen isotope composition was measured. According to its quality characteristics, the nephrite is substandard. Here, uvarovite, which forms idiomorphic grains, sometimes sheath-like, less often xenomorphic elongated, and substituting chromite are commonly encountered. The nephrite was formed due to both metamorphic and metasomatic processes. Serpentinite was replaced by diopsidite, which was then replaced by nephrite. Metamorphism intensified metasomatism of the serpentinite melange and provided a cryptocrystalline tangled-fibrous structure of the nephrite. Then metamorphism and metasomatism led to the formation of omphacite and cracking of the nephrite, which reduced its quality. As these processes progressed, contribution of crustal fluid increased.

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Section: Of 17mentioning

confidence: 87%

Section: Discussionmentioning

confidence: 98%