Results 111 to 120 of about 1,047 (213)

Formation environments of precious-semi precious stone and metals and special areas of use (gemology-jewellery lithotherapy-radestetics)

Radyometrik tarihleme ve diğer yöntemlerle dünyamızın yaklaşık yaşının 4.55 milyar yıl yaşında olduğu kanıtlanmıştır. Dünyanın oluşum süresi veya sonrasında yüzeyine çeşitli gök taşları çarparak yapılarında bulunan donmuş buzlar, silikatlar ve metaller ...
Kaya, Sercan
core  

Transition-Metal Composition, Optical Absorption, and Channel-Water Characteristics of Natural V-Rich Beryl from the North Muzart River Area, Xinjiang, China. [PDF]

Materials (Basel)
Zhu T, Li G, Schmitz F.
europepmc   +1 more source

Gemological Abstracts

Gems & Gemology, 2006
  +4 more sources

Chrysoprase color grading with machine learning: A systematic approach. [PDF]

PLoS One
Jiang Y, Guo Y, Cheung V, Wang P, Westland S.   +4 more
europepmc   +1 more source

Comparative analysis of labor input required to produce one carat at different methods of synthesis and mining of diamonds. [PDF]

Heliyon, 2022
Zhdanov V, Smirnov P, Andrzejewski L, Bondareva J, Evlashin S.   +4 more
europepmc   +1 more source

Gemological Abstracts

Gems & Gemology, 1990
openaire   +2 more sources

Cause analysis of chatoyancy of sapphires from Shandong, China. [PDF]

RSC Adv, 2019
Yu J, He X, Lu Z.
europepmc   +1 more source

Vivianite and Its Oxidation Products in Mammoth Ivory and Their Implications to the Burial Process. [PDF]

ACS Omega, 2021
Shen M, Lu Z, Xu Y, He X.
europepmc   +1 more source

GEMTELLIGENCE: Accelerating gemstone classification with deep learning. [PDF]

Commun Eng
Bendinelli T, Biggio L, Nyfeler D, Ghosh A, Tollan P, Kirschmann MA, Fink O.   +6 more
europepmc   +1 more source

International Seminar and Workshop on “Exploring the World of Gems: Gemology, Prospecting and Identification” by Department of Geology, Fakir Mohan University, Balasore, Odisha in Collaboration with Institution of Geoscientists, Odisha

Journal of the Geological Society of India
A. Naik, Manoranjan Mohanty
semanticscholar   +1 more source