Results 161 to 170 of about 941 (201)

Agates from Sidi Rahal, in the Atlas Mountains of Morocco: Gemological Characteristics and Proposed Origin

open access: yesGems & Gemology, 2013
Dumańska-Słowik, Magdalena   +5 more
openaire   +2 more sources

Review Article: Synthesis, properties, and applications of fluorescent diamond particles. [PDF]

open access: yesJ Vac Sci Technol B Nanotechnol Microelectron, 2019
Shenderova OA   +5 more
europepmc   +1 more source

[The Gemological Characteristics of One Kind Turquoise Imitation].

Guang pu xue yu guang pu fen xi = Guang pu, 2018
It has been a long time that the imitations of turquoise appear in gem market. Pressed dyed carbonate in the early stage and dyed variscite, chalcedony as well as magnesite appeared in succession. These kinds of materials do not have the color and characteristics of natural turquoise.
Quan-li, Chen   +5 more
openaire   +1 more source

Gemological Characteristics of Corundum from Gia Nghia, Southern Vietnam

2009
Bulletin of Earth Sciences of Thailand (BEST), 2, 2-Jan, 63 ...
openaire   +1 more source

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