Applications of Raman spectroscopy to gemology

D Bersani, PP Lottici - Analytical and bioanalytical chemistry, 2010 - Springer
Being nondestructive and requiring short measurement times, a low amount of material, and
no sample preparation, Raman spectroscopy is used for routine investigation in the study of …

Preparation and characterization of hydroxyapatite from eggshell

G Gergely, F Wéber, I Lukács, AL Tóth, ZE Horváth… - Ceramics …, 2010 - Elsevier
Hydroxyapatite (HAp) was successfully produced by using recycled eggshell. The observed
phases of the synthesised materials were dependent on the mechanochemical activation …

Raman spectroscopy of synthetic, geological and biological vaterite: a Raman spectroscopic study

U Wehrmeister, AL Soldati, DE Jacob… - Journal of Raman …, 2010 - Wiley Online Library
Raman spectroscopy was used to study vaterite samples of biological, geological and
synthetic origin. The Raman band positions and the full width at half‐maximum (FWHM) of …

Characterization of eggshell as limestone replacement and its influence on properties of modified cement

S Grzeszczyk, T Kupka, A Kałamarz, A Sudoł… - … and Building Materials, 2022 - Elsevier
Food industry is known to produce, as a side product, huge amounts of eggshell.“Green
chemistry” is searching for efficient ways of recycling antropogenic waste materials including …

Coral calcifying fluid aragonite saturation states derived from Raman spectroscopy

TM DeCarlo, JP D'Olivo, T Foster, M Holcomb… - …, 2017 - bg.copernicus.org
Quantifying the saturation state of aragonite (Ω Ar) within the calcifying fluid of corals is
critical for understanding their biomineralization process and sensitivity to environmental …

New insight on spatial localization and microstructures of calcite-aragonite interfaces in adult shell of Haliotis tuberculata: Investigations of wild and farmed abalones …

A Badou, S Pont, S Auzoux-Bordenave… - Journal of Structural …, 2022 - Elsevier
In the present study, we investigated the shell microstructures of the gastropod European
abalone Haliotis tuberculata in order to clarify the complex spatial distribution of the different …

Nano-hydroxyapatite preparation from biogenic raw materials

G Gergely, F Wéber, I Lukács, L Illés, A Tóth… - Open …, 2010 - degruyter.com
Hydroxyapatite (HAp) was successfully produced from recycled eggshell, seashell and
phosphoric acid. The phases obtained depended on the ratio of calcined eggshell/seashell …

Conversion of waste sea shell (Anadara granosa) into valuable nanohydroxyapatite (nHAp) for biomedical applications

K Dhanaraj, G Suresh - Vacuum, 2018 - Elsevier
Million tons of sea shells are produced as bio-waste around the world every day and these
create odors and promote microbial growth, and emit CO 2 in lesser extent as they …

Identification and spectra–structure determination of soil minerals: Raman study supported by IR spectroscopy and X‐ray powder diffraction

Z Tomić, P Makreski, B Gajić - … Journal for Original Work in all …, 2010 - Wiley Online Library
Raman and IR spectroscopy were used for the characterization of several minerals in
morphologically similar vertisol sequences from Kiževak (Serbia). It helped us to establish …

Non-destructive dating of ancient flax textiles by means of vibrational spectroscopy

G Fanti, P Baraldi, R Basso, A Tinti - Vibrational Spectroscopy, 2013 - Elsevier
The possibility to define a two-way relationship between age and a spectral property of
ancient flax textiles has been investigated in the present paper employing both FT-IR and …