Results 1 to 10 of about 276,637 (305)

Comparative Analysis of Spectral Characteristics and Color Origin of Chameleon Diamond and Similar Yellow Diamond

open access: yesYankuang ceshi, 2023
BACKGROUND Chameleon diamond is a type of color diamond with photochromic and thermochromic phenomenon. If the chameleon diamond is placed in a dark room or heated for a long time, it can change from greenish yellow to fancy yellow, and return to its ...
Yujie LI   +4 more
doaj   +1 more source

Spectral Characteristics and Electrical-Magnetic Properties of Gem-quality Synthetic Diamonds under High Temperature and Pressure

open access: yesYankuang ceshi, 2021
BACKGROUND In order to quickly identify and screen high pressure and high temperature (HPHT) grown synthetic diamonds, a lot of research about their luminescent and spectral characteristics has been done. However, the comparative analysis is lacking, and
YANG Chi-yu   +6 more
doaj   +1 more source

Jewelry Art Modeling Design Method Based on Computer-Aided Technology

open access: yesAdvances in Multimedia, 2022
In order to improve the effect of jewelry art modeling design, this paper applies computer-aided technology to jewelry art modeling design. Moreover, in order to solve the situation that the given data points do not form a topological rectangular grid ...
Yuan Li, Hai Wen
doaj   +1 more source

Morphological and Surface Microtopographic Features of HPHT-Grown Diamond Crystals with Contact Twinning

open access: yesCrystals, 2022
Gem-grade twinned high-pressure high-temperature (HPHT) synthetic diamond crystals are rare. Hence, few investigations on their morphological features and formation have been reported.
Kaiyue Sun   +5 more
doaj   +1 more source

Comparative Study of Types of Men's Jewelry at the Safavid Court with Indian Great Mughals [PDF]

open access: yesنگره, 2021
After the advent of Islam in Iran, the Islamic rulings imposed some restrictions on men's use of jewelry, while in various Islamic periods, especially in the Safavid period, based on records and texts, the dazzling glory of jewelry used by men of the ...
Masomeh Kasi Matak   +3 more
doaj   +1 more source

Corresponding relationship between characteristic birefringence, strain, and impurities in Zimbabwean mixed-habit diamonds revealed by mapping techniques [PDF]

open access: yesEuropean Journal of Mineralogy, 2022
Birefringence in diamond is an optical phenomenon related to strain and various defects in crystal lattices. Despite extensive investigations being done to characterize and quantify it, there is still controversy about its origin in diamond lattices ...
C. Sun   +5 more
doaj   +1 more source

Identification of Jadeite Filled with Inorganic Materials Using UV Fluorescence, Infrared Spectroscopy and LIBS Techniques

open access: yesYankuang ceshi, 2022
BACKGROUND Through visiting the jadeite market, the existence of inorganic material-filled jadeite is known, but there is a lack of identification basis due to rare references.
YANG Chunmei   +5 more
doaj   +1 more source

Feminist Identity in Conceptual jewelery: Case study of Contemporary Iranian Women Jewelery Designer (Fatmeh DolatAbadi, Pegah Vedad, Farzaneh Davodian) [PDF]

open access: yesزن در فرهنگ و هنر, 2022
Conceptual jewelry, the result of the "contemporary" paradigm, has provided a platform for the expression of social and political ideas as well as the active presence of artists by challenging and criticizing the accepted concepts and principles in ...
Reihaneh Rashidi   +2 more
doaj   +1 more source

Gemological features of diaspore in sodra—Milas (mugla) region

open access: yesFrontiers in Earth Science, 2023
Diaspore, is related to bauxite in terms of its formation mechanism. Diaspore is one of the gemstone quality stones used in jewelry and jewelry making. It is possible to come across gemstones in various regions of the world.
Eyyüp Hikmet Kinaci, Alican Ozturk
doaj   +1 more source

Jewelry collection of I.V. Savitsky State Museum of Arts of the Republic of Karakalpakstan

open access: yesИсторическая этнология, 2023
This article provides information about the jewelry of the Karakalpak people in the collection of I.V. Savitsky State Museum of Arts of the Republic of Karakalpakstan.
Dilfuza A. Kudaibergenova
doaj   +1 more source

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