A SK JEWELERS how to sell colored gemstones and you’ll hear one word more than any other: story. “A story, you need a story, ...
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 ...
Braun, P. B., paper at ASXRED meeting, Ithaca, 1949. Van Santen J. H., de Boer, F., and Verwey, E. J. W., J. Chem. Phys., 18, 1032 (1950).
Crying for no reason can be caused by depression, including symptoms like sleep troubles and feelings of emptiness. Hormonal changes during pregnancy or menstruation might lead to unexplained crying ...
Graduate School of Energy Science and Technology (GEST), Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Republic of Korea ...
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