Results 81 to 90 of about 949 (188)
The Gemological Collection of Abraham Gottlob Werner [PDF]
, 2021 The gemological collection of Abraham Gottlob Werner contains 1374 sample numbers for 25 different minerals with 38 gemological varieties, including 15 newly added numbers of samples, which were not recorded in the original catalog of 1823. In total, 168
Gao, Shijia
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Study on the Microstructure and Spectra of Regrown Quartz Crystals from Chinese Jewelry Market
Crystals, 2021 Regrown quartz crystals consist of the natural section and the synthetic section grown by hydrothermal technique, which has become popular on the Chinese jewelry market in recent years.
Danyi Zhou +6 more
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Color Genesis and Compositional Characteristics of Color-Change Sapphire from Fuping, China
Crystals, 2022 The color-change sapphire occurs in sillimanite-biotite gneiss in Fuping County Hebei province, China, is one of most famous sapphire deposits in China.
Hui Wang +4 more
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Special Libraries, July-August 1951 [PDF]
, 1950 Volume 42, Issue 6https://scholarworks.sjsu.edu/sla_sl_1951/1005/thumbnail ...
Special Libraries Association
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Caracterização Gemológica das Ametistas com Alta Birrefringência de Santa Quitéria [PDF]
, 2020 A ametista é um mineral pertencente ao grupo do quartzo, ocorre nas cores violeta, lilás e roxa, e pode ser utilizado como gema. Sua ocorrência está relacionada principalmente a geodos, pegmatitos e jazidas aluvionares.
Maciel, Eryckson de Lima +4 more
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Yankuang ceshi, 2016 Due to the nondestructive requirements of gem testing, evaluation of precious stones shows characteristics of science and uncertainty. Gemological application of X-ray Diffraction (XRD) is specialized, with its application mainly concentrated in three ...
ZHANG Ni, LIN Chun-ming
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Gemological Characteristics of Aquamarine from the Gilgit-Baltistan of Northern Areas, Pakistan
Journal of the mineralogical society of korea, 2015 We applied gemological analytical approaches on Aquamarine from the Gilgit-Baltistan of Northern Areas, Pakistan. The standard gemological testing indicates that they are consistent with general characteristics of natural aquamarines. We have identified the inclusions of Tantalite-Mn by Raman analysis.
Sung Jae Kim +3 more
openaire +1 more source
Mineralogia, gemologia e potencial sócioeconômico dos coríndons da Bahia [PDF]
, 2021 O território baiano possui associações geológicas altamente favoráveis à formação de depósitos de coríndon, quando comparados com alguns dos principais distritos produtores deste mineral no mundo.
Correa, Monica
core
The Greater Boston Housing Report Card 2013: What Follows The Housing Recovery? [PDF]
, 2013 This report is the 11th in the series of annual "Greater Boston Housing Report Cards," the first of which appeared in 2002 at a time when housing prices in the region were skyrocketing.
Barry Bluestone +6 more
core
CrystalsThe trapiche garnet, a gemstone of unparalleled beauty, boasts a rare structure comprising one core, six radiating arms, and a main body. The occurrence of garnet within the trapiche structure elevates it beyond the species, granting it significant ...
Yingzhao Wang +3 more
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