xujun16
第2楼2013/07/02
http://rruff.geo.arizona.edu/AMS/amcsd.php
database for :
This site is an interface to a crystal structure database that includes every structure published in the American Mineralogist, The Canadian Mineralogist, European Journal of Mineralogy and Physics and Chemistry of Minerals, as well as selected datasets from other journals. The database is maintained under the care of the Mineralogical Society of America and the Mineralogical Association of Canada, and financed by the National Science Foundation.
iangie
第3楼2013/07/02
徐兄, 他问的是PDF衍射数据库, 不是晶体结构数据库~
iangie
第7楼2013/07/25
MLA 650网上可查, 基本上就是依靠昆士兰大学的QEMSCAN 系统通过EDS的元素含量来判断矿石.
http://www.fei.com/uploadedFiles/DocumentsPrivate/Content/HR_DS_MLA650.pdf
样品要泡树脂, 切割, 抛光. 费事.......而且不可能分辨多态, 例如无法区分方石英/鳞石英/高温石英, 因为他们的Si:O多是1:2.
对于矿物鉴定来说, 检查晶体结构才是王道, 所以各种衍射方法: XRD, SAED, Neutron diffraction是最佳选择.