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A universal ore-polishing machine (With Plate XXI.)

Published online by Cambridge University Press:  14 March 2018

F. C. Phillips
F. C. Phillips*
Affiliation:
Department of Mineralogy and Petrology, University of Cambridge
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Extract

Available methods of grinding and polishing ore-minerals, in preparation for their examination with the ore-microscope in reflected light, fall into two categories. The more usual procedure, adapted from the corresponding methods in metallography, involves the use of high-speed laps faced with soft materials and supplied with relatively large quantities of abrasive mixed with water. The advantages of this method are its rapidity (about ten minutes will usually suffice for the whole series of processes), the possibility of using unmounted chips, and the simplicity of the necessary equipment. Amongst its chief disadvantages are the high relief developed between hard and soft minerals in the same specimen and the dirtiness of the process owing to the large amounts of wet sludge produced.

Type
Research Article
Information
Mineralogical magazine and journal of the Mineralogical Society , Volume 24 , Issue 158 , September 1937 , pp. 595 - 600
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1937

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References

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Page 599 note 1 Supplied by Messrs. May & Baker Ltd., Dagenham, London.

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Page 599 note 5 Supplied by Bakelite Ltd., Tyseley, Birmingham.