Efeitos ópticos em gemas produzidas a partir de cristais de feldspato.
Optical effects in gemstones feldspar crystals.
DOI:
https://doi.org/10.21680/2447-3359.2025v11n1ID36818Abstract
This article reviews the optical effects of feldspars, a group of minerals with various applications, including jewelry. Feldspars are divided into alkali and plagioclase, and exhibit effects such as adularescence, labradorescence and aventurescence, depending on the mineral intergrowth. The article discusses the gem varieties of feldspar, such as moonstone, labradorite and sunstone, and highlights the importance of crystal orientation in cutting to maximize the optical effects. The article concludes that more research on the optical properties of feldspar can improve gem processing techniques and mineralogical knowledge.
Keywords: optical effect, gemstone, feldspar.
Downloads
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2025 Notheast Geoscience Journal

This work is licensed under a Creative Commons Attribution 4.0 International License.
Articles published by REGNE are made available under the Creative Commons Attribution 4.0 International (CC BY 4.0) license, unless expressly stated otherwise in the article itself.
This license allows anyone, free of charge and without the need for prior authorization from the journal or the authors, to read, download, copy, reproduce, distribute, share, search, data-mine, and use the articles for any lawful purpose, including commercial use, provided that proper credit is given to the authors and the original publication.
Attribution must identify, at a minimum, the authors, the title of the work, REGNE as the original publication, the year of publication, the article's DOI or permanent URL, and the indication of the CC BY 4.0 license.
The full license can be viewed at: https://creativecommons.org/licenses/by/4.0/deed.pt-br
Português (Brasil)
English



