LAUSR

About LAUSR
Donate
Contact Us

Follow us:

You are not signed in:

Sign Up!


   Articles with "gemstone" as a keyword



A novel algorithm for efficient utilization of gemstone using genetic algorithm

Sign Up to like & get
recommendations! Published in 2021 at "Evolutionary Intelligence"

DOI: 10.1007/s12065-020-00542-1

Abstract: In this paper, a novel method is used for fitting a polished and faceted object which is also called as a gem or diamond in a given rough gemstone using genetic algorithm. The goal of… read more here.

Keywords: genetic algorithm; polished gemstones; gemstone; gemstone using ... See more keywords

Effect of fusion mixture treatment on the surface of low grade natural ruby

Sign Up to like & get
recommendations! Published in 2017 at "Applied Surface Science"

DOI: 10.1016/j.apsusc.2017.01.167

Abstract: Abstract Improvement in aesthetic look of low grade natural ruby (gemstone) surface was clearly evident after fusion mixture treatment. Surface impurities of the gemstone were significantly reduced to give it a face lift. The processing… read more here.

Keywords: treatment; gemstone; surface; fusion mixture ... See more keywords

Multi-excitation photoluminescence spectroscopy system for gemstone analysis.

Sign Up to like & get
recommendations! Published in 2024 at "Optics express"

DOI: 10.1364/oe.525832

Abstract: Luminescence spectra can reveal important chemical and structural information that can be used for gemstone characterization and identification. Traditionally, gemstone UV-excited luminescence is evaluated visually under mercury vapor lamp illumination. This approach is limited by… read more here.

Keywords: spectroscopy; system; gemstone; multi excitation ... See more keywords

Zimbabwe's coloured gemstone endowments - A regional geological overview

Sign Up to like & get
recommendations! Published in 2024 at "Journal of the Southern African Institute of Mining and Metallurgy"

DOI: 10.17159/2411-9717/2600/2024

Abstract: Zimbabwe hosts a varied array of coloured gemstones. With the exception of emerald deposits and several world-class pegmatites, few of the gemstone occurrences have received detailed attention from the scientific or mineral exploration communities. In… read more here.

Keywords: regional geological; gemstone; gemstone endowments; coloured gemstone ... See more keywords

Development of Mid-Infrared Absorption Spectroscopy for Gemstone Analysis

Sign Up to like & get
recommendations! Published in 2023 at "Minerals"

DOI: 10.3390/min13050625

Abstract: Absorption spectroscopy has been widely used in gemstone societies as it enables the identification of the origin and post-treatment of gemstones in a non-destructive way. The infrared (IR) range is critical for studies of gemstones… read more here.

Keywords: gemstone; mid infrared; spectroscopy; absorption spectroscopy ... See more keywords