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A microscope-mounted drill to isolate microgram quantities of mineral material from thin and polished sections

Published online by Cambridge University Press:  05 July 2018

R. H. Verschure
R. H. Verschure*
Affiliation:
Z.W.O. Laboratorium voor Isotopen-Geologie, De Boelelaan 1085, 1081 HV Amsterdam
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Summary

Several types of microscope-mounted drills have been described in literature to obtain pure mineral material from thin sections or polished sections (e.g. Granigg, 1915; Moritz, 1929; Haycock, 1931; Russanow, 1937; Machairas, 1967), but all of them appear to be of limited mechanical stability and reliability. This paper describes an improved drill to extract under the microscope minute quantities of pure material from thin or polished sections. The drilling is performed in a liquid (silicon-oil) to minimize loss of the drilled-out mineral powder. With the help of a micromanipulator the liquid, together with the borings, is drawn up into a microcapillary tube (less than 30 µm in diameter) made of Lindemann glass. For identification of the mineral powder the microcapillary is mounted in a Debye-Scherrer X-ray diffraction camera.

Information

Type
Research Article
Information
Mineralogical Magazine , Volume 42 , Issue 324 , December 1978, pp. 499 - 503
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1978

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References

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