滑石及相关矿物的特性描述。

Characterization of talc and associated minerals.

作者信息

Hamer D H, Rolle F R, Schelz J P

出版信息

Am Ind Hyg Assoc J. 1976 May;37(5):296-304. doi: 10.1080/0002889768507458.

Abstract

The unequivocal identification of mineral impurities in talc requires definitive analytical techniques due to the very similar structure of many naturally occurring silicates and the small quantities of associated minerals frequently found. The instrumental methods and techniques extant for this purpose are reviewed. Light microscopy, x-ray diffractometry, and differential thermal analysis have been found to be particularly useful, complementary, and practical for both exploratory and routine determinations of mineral impurities in the talc matrix. When necessary, transmission electron microscopy is recommended for the analysis of mineral components present at sub-trace levels.

摘要

由于许多天然存在的硅酸盐结构非常相似，且滑石中经常发现少量伴生矿物，因此明确鉴定滑石中的矿物杂质需要使用权威的分析技术。本文综述了现有的用于此目的的仪器方法和技术。已发现光学显微镜、X射线衍射法和差热分析对于滑石基质中矿物杂质的探索性和常规测定特别有用、具有互补性且切实可行。必要时，建议使用透射电子显微镜分析痕量以下水平存在的矿物成分。