岩矿测试2018，Vol.37Issue(1)：50-55,6.DOI:10.15898/j.cnki.11-2131/td.201709050141
X射线荧光光谱-X射线衍射研究宁夏贺兰石岩石矿物学特征
Study on Petrological and Mineralogical Characteristics of the Ningxia Helan Stone by X-ray Fluorescence Spectrometry and X-ray Diffraction
摘要
Abstract
The Ningxia Helan Stone is one of the well-known stones that are used for making inkslab in China.The development and application of Helan Stone is becoming more and more widespread,and therefore,it is necessary to carry out a systematic study.At present,there are only preliminary artificial experiments and systematic study of mineralogy is lacking.The conventional gemological test method is combined with spectroscopic analytical methods such as optical thin section identification,X-ray Fluorescence Spectrometry(XRF),X-ray Powder Diffraction (XRD)to study the gemological characteristics,chemical components,rock structure,and the mineral compositions of the Ningxia Helan Stone and is reported in this paper.The results show that the minerals of the Ningxia Helan Stone include major hydromica and sericite,and minor ferric oxide,sandy clastics,chlorite,and trace amounts of hematite,rutile,and tourmaline.The Ningxia Helan Stone has chemical components including SiO2,Al2O3,TFe2O3,K2O,MgO,TiO2,CaO,P2O5,a refractive index of 1.56 -1.57,a density of 2.81 -2.86 g/cm3,and a mohs hardness of 3 -4.The main color-causing factor of the Ningxia Helan Stone is also discussed.Based on the correlation between the morphology and content of Fe element and the color of the Helan stone,it is considered that Fe is the main color-causing element.The most characteristic parameters of Ningxia Helan Stone have been determined in this study,which provides technical support for follow-up accurate nomenclature and identification method for the Helan Stone.关键词
宁夏贺兰石/岩石矿物学特征/X射线荧光光谱法/X射线粉晶衍射法/致色成因Key words
Ningxia Helan Stone/petrological and mineralogical characteristics/X-ray Fluorescence Spectrometry/X-ray Powder Diffraction/color-causing factor分类
天文与地球科学引用本文复制引用
孟长峰,薛俊辉..X射线荧光光谱-X射线衍射研究宁夏贺兰石岩石矿物学特征[J].岩矿测试,2018,37(1):50-55,6.基金项目
宁夏国土资源科技财政专项(2014kj01) （2014kj01）
宁夏科技支撑计划资助项目 （）
