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On the Physical and Geometrical Properties of Graphite

Published online by Cambridge University Press:  14 March 2018

Extract

E. D. Clarke was the first mineralogist by whom crystallised graphite was observed and examined. As early as 1821, he described some graphite crystals from the mines at Borrowdale, in Cumberland. Clarke designated graphite by the name of " carburet of iron" or "plumbago," and stated its form to be that of an oblique four sided prism, the obtuse angle of which was found by measurement with the contact goniometer (" the common goniometer ") to be 118°.

Type
Research Article
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1885

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References

page 151 note * Annals of Philosophy, New Series, vol. ii. p. 417.

page 151 note † Handbuch der bestimmenden Mineralogie, p. 513, 1845.

page 151 note ‡ Sitzungsber. d. math. naturw, Classe der Wiener-Akad. vol. xiii. p. 469, 1854.

page 151 note § Pogg. Ann. vol. xcvi. p. 110, 1855.

page 153 note * Pogg. Ann. vol. xcvi. p. 110, 1855.