Relationship between the Coloration Mechanism and Gemological Properties of Purple Scapolite

Purple scapolite is a precious gemstone. In this paper, we compared the crystal structure and spectral characteristics of purple scapolite before and after heat treatment with conventional gemological tests, EPMA, XRF, LA-ICP-MS, infrared spectroscopy, Raman spectroscopy, UV–vis spectrophotometer, E...

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Bibliographic Details
Main Authors: Yinghua Rao, Qingfeng Guo, Sixue Zhang, Libing Liao
Format: Article
Language:English
Published: MDPI AG 2023-08-01
Series:Crystals
Subjects:
Online Access:https://www.mdpi.com/2073-4352/13/8/1207