Researchers in Tokyo have created a spinel sulphide LED material that can can be tuned to emit light at wavelengths between orange and blue, and has photovoltaic properties. Spinel is a type of cubic ...
The world of high jewelry witnessed a grand celebration of colour, craft, and creativity at the Bangkok Gems & Jewelry Fair from September 9 to 13, 2025. Veteran jewelry designer and art curator ...
Figure 1. The vivid colors seen in fine gem-quality spinel are derived from the mixing between multiple different chromophores in a range of ratios and concentrations, as in this fine 13.52 ct ...
State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China School of Applied Chemistry and Engineering, ...
Abstract: Geologists usually deal with rocks that are up to several thousand million years old. They try to reconstruct the tectonic settings where these rocks were formed and the history of events ...
Recently, the GGTL laboratory in Geneva received three gems for identification weighing 1.43, 1.55, and 2.65 ct and exhibiting a blue coloration fairly typical of cobalt-bearing gems such as spinel ...
Wondering where to find gems in Disney Dreamlight Valley? Our guide will tell you what region each type of gem can be found in. You’ll need gems for various reasons in Disney Dreamlight Valley. They ...
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