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Journal of Raman Spectroscopy, Volume 55, Issue 2, Page 125-147, February 2024.The present overview answers the need of evaluating the current state of the art concerning the application of principal components analysis (PCA) to Raman spectroscopy studies of cultural heritage materials. Painting materials, both colouring and binding ones, were considered, together with natural and synthetic glasses, biogenic and mineral ...
Alessia Coccato, Maria Cristina Caggiani
wiley +1 more source
Popular Gemology, par R. M. Pearl, 1965
, 1966 Cesbron Fabien. Popular Gemology, par R. M. Pearl, 1965. In: Bulletin de la Société française de Minéralogie et de Cristallographie, volume 89, 2, 1966. pp.
Cesbron, Fabien
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CrystalsThe color origin of precious coral, a highly valued biogenic polycrystalline gemstone, has long remained elusive. In this study, an integrated approach employing spectrophotometry, Raman, FTIR, and UV-Vis spectroscopy, coupled with Spearman correlation ...
Yushu Yang +3 more
doaj +1 more source
Brazilian Journal of Geology, 2019 Reflectance spectroscopy is a fast tool for mineral identification and classification. We conducted spectral characterization of elbaite samples (n = 30) from Serido Pegmatite Province, Borborema Province, NE Brazil, using a FieldSpec portable instrument
T. A. Carrino +4 more
semanticscholar +1 more source
CrystalsThree commercial red–white banded rhodochrosite samples sold as Argentine “Rosa del Inca” material were investigated using conventional gemological observation, mineralogical analysis, micro-area chemical analysis, and spectroscopy.
Luyan Jiang +3 more
doaj +1 more source
Crystals, 2023 Fluorite has been attracting the attention of gemstone mineralogists because of its rich color and excellent fluorescence properties. This paper studied fluorite with three color types (blue, green, and white) and five blue-purple fluorites with an ...
Yang Liu +5 more
doaj +1 more source
Spectroscopic Characteristics of Blue Calcite and the Origin of Its Coloration and Luminescence
CrystalsNatural blue calcite is relatively rare, and its coloration and luminescence mechanisms have not been systematically established. In this study, four natural blue calcite samples from China were comprehensively characterized using mineralogical testing ...
Jingying Lv +3 more
doaj +1 more source
Gemology refers to the narrowly focused science of precious stones and is a branch of mineralogy, the broader science of minerals, which, in turn, is a branch of geology as a whole.
D. Nechaev
semanticscholar +1 more source
High-Magnesium Olivines (Fo 90–100): Determination of Fo Content by Raman Spectroscopy
CrystalsOlivine is a dominant constituent of the Earth’s upper mantle, and its forsterite content (Fo = 100 × Mg/(Mg + Fetotal) in molar basis) holds significant implications for indicating petrogenesis.
Tianqi Wang +5 more
doaj +1 more source
Emeralds from the Delbegetey deposit (Kazakhstan): mineralogical characteristics and fluid-inclusion study [PDF]
, 2006 The aim of this study is to provide the first detailed mineralogical and fluid-inc1usion description of emeralds from the Delbegetey deposit (Kazakhstan).
Gavrilenko, Egor +3 more
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