Spectroscopic study of the coloured gems in a 19th century pendant from Einsiedeln Abbey

Karampelas, Stefanos; Wörle, Marie

doi:10.1002/jrs.6194

Cited by 3 publications

(3 citation statements)

References 39 publications

(117 reference statements)

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“…None of the samples presented microscopic or spectroscopic evidence of clarity enhancement. Emeralds with similar characteristics are found in other jewels from the same period (Keller, 1981;Karampelas and Wörle, 2022).…”

Section: Summary Of Resultssupporting

confidence: 71%

“…As this set of gems is considered a priceless national treasure, such studies can only be conducted within the Museum, using classical nondestructive gemo-logical tools and mobile spectrometers. In the last two decades, several instruments useful for characterizing gems in situ have been developed in mobile versions, drawing the interest of researchers from various disciplines (Reiche et al, 2004;Petrová et al, 2012;Barone et al, 2016;Panczer et al, 2021;Karampelas and Wörle, 2022).…”

Section: Discussionmentioning

confidence: 99%

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A Gemological and Spectroscopic Study with Mobile Instruments of “Emeralds” from the Coronation Crown of Napoleon III

Karampelas¹,

Gaillou²,

Herreweghe³

et al. 2022

G&G

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Section: Summary Of Resultssupporting

confidence: 71%

Section: Discussionmentioning

confidence: 99%

A Gemological and Spectroscopic Study with Mobile Instruments of “Emeralds” from the Coronation Crown of Napoleon III

Karampelas¹,

Gaillou²,

Herreweghe³

et al. 2022

G&G

Self Cite

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“…Gemology is sometimes linked to the analysis of artworks and samples of high value. Karampelas et al [ 18 ] analysed 19 green‐coloured gems adorning a cross‐shaped pendant from the end of 19th century belonging to Einsiedeln Abbey (Switzerland). Using a combination of spectroscopic and microscopic methods, the samples were adequately identified as natural emeralds, with Colombia as their most probable source.…”

Section: Mineralogy Petrology and Volcanology A Place Of Opportunitie...mentioning

confidence: 99%

GeoRaman

Castro

Ling

2022

J Raman Spectroscopy

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was the 14th edition of the international biennial meeting devoted to the application of Raman spectroscopy to mineralogy, geology and earth sciences in broad sense. However, this edition was marked by the COVID19 pandemic. Initially, it should have been held in spring in Weihai (China), but the circumstances, with a worldwide confinement and strong travel restrictions, in what was the first wave of the pandemic focused on Asia, led to the hard decision to be made to move the meeting to Bilbao (Spain) and hold the conference in the fall. Unfortunately, the successive waves of the pandemic and the global uncertainty prevented the formal celebration of said meeting.Far from being discouraged, it was decided to keep the spirit of GeoRaman open a call for abstracts and publish a book of abstracts after the pertinent scrutiny of the scientific committee. The 2020 edition of the conference gathered around 90 research works. GeoRaman 2020 focused on topics, which can be summarized as follows:1. Mineralogy, gemmology and provenance studies 2. Planetary analysis and space exploration 3. Astrobiology and biomineralization 4. Petrology, field and experimental volcanology 5. Geothermobarometry and fluid geochemistry 6. Carbonaceous materials 7. Cultural heritage and archaeometry This special issue of the Journal of Raman Spectroscopy is dedicated to the 14th International GeoRaman Conference and comprises 27 papers covering some of the topics listed above.

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Study of green‐coloured gems of the Roman period from the collections of the Archaeological Museum of Thessaloniki (Greece) and their possible geographic origin

Nikopoulou,

Karampelas,

Tsangaraki

et al. 2024

J Raman Spectroscopy

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The study of gems in jewellery of the Roman period from known archaeological contexts may provide valuable information for the trading routes of gems in antiquity, the techniques of their manufacture and decoration, the popularity of certain gems or their relation to a specific type of jewellery. Moreover, by the correct identification of these gems, the museum will better inform its public. In the present work, 19 green‐coloured gems, which were integral parts of 14 Roman jewellery pieces, dated between the first and fourth century CE, from the collections of the Archaeological Museum of Thessaloniki in Greece, were studied. Most samples were found during rescue excavations in western and eastern Roman cemeteries of Thessaloniki, while one was found in Edessa, a city in northern Greece. All samples were investigated by using strictly non‐destructive techniques, for example, optical microscope as well as Raman and Vis‐NIR mobile instruments. For the chemical characterisation of the samples, micro‐EDXRF was used. Seventeen samples were identified as natural emeralds with characteristics similar to emeralds that originate from Egypt. Among the studied samples, a natural chrome chalcedony and an artificial glass were also identified. The geographic origin of the artificial glass is unknown and that of chrome chalcedony is under discussion with Turkey being the most possible source.

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Spectroscopic study of the coloured gems in a 19th century pendant from Einsiedeln Abbey

Cited by 3 publications

References 39 publications

A Gemological and Spectroscopic Study with Mobile Instruments of “Emeralds” from the Coronation Crown of Napoleon III

A Gemological and Spectroscopic Study with Mobile Instruments of “Emeralds” from the Coronation Crown of Napoleon III

GeoRaman

Study of green‐coloured gems of the Roman period from the collections of the Archaeological Museum of Thessaloniki (Greece) and their possible geographic origin

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