Results 81 to 90 of about 1,737 (200)

On Buddhism, Divination and the Worldly Arts: Textual Evidence from the Theravāda Tradition [PDF]

open access: yes, 2014
This essay attends to the sticky web of indigenous terminology concerning divination and other so-called “mundane” or “worldly” arts, focusing primarily upon Buddhist canonical texts preserved in Pāli, augmented by references to commentarial and ...
Fiordalis, David
core   +1 more source

On the Lapidary Style [PDF]

open access: yes, 2017
“The lapidary style” suggests a manner of writing that runs close to working a material—carving lettering into rock, cutting a gem into fine facets. Poised between the properties of the stone and of the jewel, this term holds the tensions of stone’s ...
Riley, Denise
core   +1 more source

Integrated Chromogenic Analysis of Freshwater Pearls: Revealing the Internal Factors Driving Color Variation

open access: yesCrystals
Pearl color serves as the paramount criterion for quality assessment and commercial valuation in the global pearl industry. Freshwater nucleated pearls, which constitute 95% of global production, exhibit striking chromatic diversity. This study deciphers
Baoyi Yang   +5 more
doaj   +1 more source

The Effect of Heat Treatment on Yellow-Green Beryl Color and Its Enhancement Mechanism

open access: yesCrystals
Beryl is classified as a cyclosilicate mineral, and its color is primarily determined by the type and oxidation state of trace elements. In this study, natural yellow-green beryl was used as the research subject, and heat treatment experiments were ...
Binru Hao, Shuxin Zhao, Qingfeng Guo
doaj   +1 more source

Идентификация алмаза и его имитаторов с помощью KrCl эксилампы [PDF]

open access: yes, 2009
Измерены и исследованы спектры оптического пропускания и люминесценции образцов корунда и алмаза природного и искусственного происхождения, а также фианита.
Авдеев, С. М.   +4 more
core  

Model Mineralisasi Pembentukan Opal Banten [PDF]

open access: yes, 2010
DOI: 10.17014/ijog.v5i3.100Opal is a beautiful precious gemstone that is equal or more valuable than diamond. In Indonesia, precious opal is found at the Lebak Regency, Province of Banten.
Ansori, C. (Chusni)
core   +1 more source

Gemological Characteristics and Trace Chemical Element Analysis of Emerald in Kafubu, Zambia

open access: yesCrystals
This study systematically analyzed the color characteristics, microscopic inclusions (including fluid and mineral inclusions), spectral properties, and chemical composition of emerald samples from Kafubu, Zambia using infrared spectroscopy, UV–visible ...
Yiwei Jiang   +3 more
doaj   +1 more source

Mineralogical Characteristics and Color Genesis of Vesuvianite Jade from Hanzhong, Shaanxi Province, China

open access: yesCrystals
A new type of vesuvianite jade has recently been discovered in Hanzhong City, Shaanxi Province, China. However, a systematic investigation into its mineralogical characteristics and the origin of its color is currently lacking.
Ye Yuan   +4 more
doaj   +1 more source

The Characteristics of Luminescence from High-Temperature- and High-Pressure-Treated Diamonds

open access: yesApplied Sciences
High-temperature and high-pressure (HTHP)-treated diamonds have attracted attention all over the world due to their vivid colors. In order to explore a new method for the rapid and non-destructive identification of HTHP-treated diamonds, in this paper ...
Mu-Lin Huang   +4 more
doaj   +1 more source

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