地球学报2017，Vol.38Issue(2)：208-222,15.DOI:10.3975/cagsb.2017.02.13
福建寿山石的矿床矿物学特征研究
A Study of Mineralogical Characteristics of Larderite Deposits in Fujian Province
摘要
Abstract
Larderite,also known as "Shoushan Stone" in China,is named after Shoushan,a mountain located in Fujian Province,where most larderites are mined.Belonging to the category of jade rocks and mainly consisting of clay minerals,larderite can be used to make art engravings and seal cutting stamps.Based on field geological investigation,naked eye observation,micropolariscope observation,Scanning Electron Microscope (SEM),Electron Probe Microanalysis (EPMA),X-ray Diffraction (XRD) analysis,Infrared Spectroscopy analysis and DSC technology,the authors studied the types and characteristics of larderite in Shoushan area of Fujian Province as well as its primary mineral composition,microstructure,and crystal texture.According to the component analysis of larderite deposits of Gaoshan,Qijiang,Emei and Yuewei,there are four main types of larderite deposits (primary ore),i.e.,dickite,kaolinite,pyrophyllite,and illite.The main textures of larderite are microaphanitic,microaphanitic-microcrystallite,and microcrystallite structure.Gaoshan stone is made of pure and ordered dickite.Emei stone is made of pure 2M type pyrophyllite,while some of Yuewei stones are made of 2M1 type illite.Qijiang stone mainly consists of ordered kaolin,which contains a few kaolin-dickite intergradient minerals.Some of Qijiang stones are made of 2M type pyrophyllite,which contains a few kaolin minerals.Based on the feature analysis of geological occurrence of mineral deposits,ore textures and mineral assemblages,the authors hold that larderite was formed through hydrothermal alteration in a reducing metallogenic environment.关键词
迪开石/高岭石/叶蜡石/伊利石/矿物学特征/寿山石矿床/福建Key words
dickite/kaolinite/pyrophyllite/illite/mineralogical characteristics/larderite deposite/Fujian Province分类
天文与地球科学引用本文复制引用
董晋琨,杜杨松..福建寿山石的矿床矿物学特征研究[J].地球学报,2017,38(2):208-222,15.基金项目
本文由国土资源部部门预算项目(编号:121113000000160034)资助.This study was supported by Departmental Budget of Ministry of Land and Resources of the People's Republic of China (No.121113000000160034). （编号:121113000000160034）
