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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.

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

Azàroff, (L. V.) and Buerger, (M. J.), 1958. The powder method in X-ray crystallography. McGraw-Hill, New York.Google Scholar
Granigg, (B.), 1915. Zur Anwendung metallographischer Methoden auf die mikroskopische Untersuchung yon Erzlagerstätten. Metall und Erz, 12, 189–200.Google Scholar
Haycock, (M.), 1931. A method for sampling minerals in polished sections. Econ. Geol. 26, 415-20.CrossRefGoogle Scholar
Hiemstra, (S. A.), 1956. An easy method to obtain X-ray diffraction patterns of small amounts of material. Am. Mineral. 41, 419-21.Google Scholar
Machairas, (G.), 1967. Description d'un appareillage nouveau permettant des micropré1èvements ponctuels sur lame mince et section polie. Bull. Soc. ft. Minéral. Cristallogr. 90, 269-70.Google Scholar
Moritz, (H.), 1929. Eine Vorrichtung zum Ausbohren analysenreiner Mineralteilchen aus Ansehliffen unter dem Erzmikroskop. Zentralbl. Mineral. 7, 251-4.Google Scholar
Russanow, (A. K.), 1937. Über eine Mikro-Bohrmaschine zur Abscheidung der Einschlüsse in den Schliffen. Mikrochem. 2, 98–101.Google Scholar
Sorem, (R. K.), 1960. X-ray diffraction technique for small samples. Am. Mineral. 45, 1104-8.Google Scholar
Van der Veen, (A. H.), 1963. A study of pyrochlore. Trans. Kon. Ned. Geol. Mijnb. Gen. 22, 188 pp.Google Scholar