Results 1 to 10 of about 570 (144)

The Use of UV-Visible Diffuse Reflectance Spectrophotometry for a Fast, Preliminary Authentication of Gemstones [PDF]

open access: yesMolecules, 2022
The identification of gemstones is an important topic in the field of cultural heritage, given their enormous value. Particularly, the most important precious stones, namely diamond, emerald, ruby and sapphire, are frequently subjected to counterfeit by ...
Maurizio Aceto   +6 more
doaj   +2 more sources

Tělesnost nerostů a země v pozdně antickém a raně islámském Egyptě [PDF]

open access: yesSvět Literatury, 2023
Corporeality permeates the concept of something as seemingly disembodied as minerals or the earth, as we naturally perceive our surroundings through the prism of our own bodily experience.
Markéta Preininger
doaj   +1 more source

Rapid Analysis of Chemical Composition and Physical Properties of Gemstones Using LIBS and Chemometric Technique

open access: yesApplied Sciences, 2021
Laser-induced breakdown spectroscopy (LIBS), accompanied by chemometric data analysis, is used to identify and classify gemstones of various hardness.
Sonali Dubey   +5 more
doaj   +1 more source

Cross-border Approach to Economic Cooperation between Russia and Kazakhstan in the Sphere of Turnover of Precious Metals and Stones [PDF]

open access: yesФинансовый журнал, 2023
In the conditions of expanding interaction between friendly countries, the cross-border approach to economic cooperation in strategically important areas is becoming increasingly important.
Ludmila N. Ivanova   +1 more
doaj   +1 more source

Overview of Gemstone Resources in China

open access: yesCrystals, 2021
Gemstones are minerals of gem qualities used for adornment and decoration with the attributes of beauty, durability and rarity. Traditionally, although China has been regarded as the most important source for nephrite, over the past decades, a large ...
Xiao-Yan Yu   +9 more
doaj   +1 more source

Specific Methodology for Forensic Commodity Examinations of Jewelry and Gemstones on the Documents

open access: yesТеория и практика судебной экспертизы, 2020
A sequence and the main stages of the commodity examination of jewelry and gemstones to determine their market value basing on the information contained in the materials given to an expert are proposed, characteristic features of gemstones expertise are ...
A. A. Selivanov
doaj   +1 more source

NFT Certificates and Proof of Delivery for Fine Jewelry and Gemstones

open access: yesIEEE Access, 2022
Fine jewelry is a unique class of ornaments composed of precious metals and gemstones. Premium-grade metals such as gold, platinum, and sliver, and gemstones such as pearls, diamonds, rubies, and emeralds are used use to make fine jewelry.
Noura Alnuaimi   +5 more
doaj   +1 more source

Des vertus et couleurs de quelques minéraux dans les écrits des médecins de langue arabe (ixe-xiiie siècle)

open access: yesPallas, 2021
Minerals, or “stones” in the wide sense, are associated to herbal and animal substances to form the corpus of medicinal simples. Sources about it are to be not only looked for in the textbooks of medicine and pharmacology, but also in the treaties of ...
Joëlle Ricordel
doaj   +1 more source

Krása rôznorodosti: Drahé kamene ako celok v kresťanskej obrazotvornosti raného stredoveku [PDF]

open access: yesSvět Literatury, 2023
The article deals with the notion of precious stones as a unit in the early medieval Christian imagery. This idea was repeatedly echoed in the coeval writings of important Christian scholars such as Augustine of Hippo, Bede the Venerable or Hrabanus ...
Veronika Pichaničová
doaj   +1 more source

Jade and Guanxi in China

open access: yesThe Copenhagen Journal of Asian Studies, 2022
This article discusses how the gemstone jade mediates guanxi (‘personal relationships’), and how guanxi mediates jade trade in China. Outlining some affective, spiritual, moral and somatic meanings and efficacies of jade, especially as a gift, the ...
Henrik Kloppenborg Møller
doaj   +1 more source

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