岩石矿物学杂志2024，Vol.43Issue(3)：495-502,8.DOI:10.20086/j.cnki.yskw.2024.0301
秘鲁粉色蛋白石的物相组成及颜色成因
Phase composition and color origin of Peru's pink opals
摘要
Abstract
X-ray powder diffraction,infrared spectroscopy,electron microprobe,laser ablation inductively coupled plasma mass spectrometry and ultraviolet-visible spectrophotometer were used to test and analyze the phase composi-tion and color genesis of different shades of pink opal samples from Peru.The results show that the main mineral composition of pink opal is Opal-CT,palygorskite,quartz and water,and the type of water is rich,including crys-tal water,structural water and zeolite water.Combined with X-ray powder diffraction,electron microprobeand in-frared spectrum analysis,it is considered that the color of pink opal is related to palygorskite,and the content of palygorskite was quantitatively analyzed by XRD,which was positively correlated with color.UV-visible spectro-photometer combined with electron microprobe and laser ablation inductively coupled plasma mass spectrometry showed that the color of pink opal was related to the organic quinones,β-carotene and Mn2+,and the more the con-tent of Mn2+,the darker the color.At the same time,the effect of Fe3+on color was proposed,and it was found that Fe3+only appeared in dark samples.关键词
物相组成/粉色蛋白石/秘鲁/颜色成因Key words
phase composition/pink opal/Peru/color genesis分类
天文与地球科学引用本文复制引用
钱雪雯,李净净,杨丽,徐娅芬..秘鲁粉色蛋白石的物相组成及颜色成因[J].岩石矿物学杂志,2024,43(3):495-502,8.基金项目
Chenguang Program of Shanghai City(AASH2106) 上海市晨光计划(AASH2106) （AASH2106）
