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Published online by Cambridge University Press: 14 March 2018
Some specimens of calcite which I obtained recently from a chalkpit at Corfe Castle in Dorsetshire appear worthy of description on account of their somewhat unusual habit and of the rarity of wellcrystallized minerals in the Chalk.
The pit is situated in the Upper Chalk, not far from the great overthrust fault which traverses the Isle of Purbeck from west to east along the boundary of the Chalk and the overlying Tertiary beds. The Chalk is here steeply inclined, with a northerly dip, and is much indurated, being sufficiently hard to be worked for road-metal.
page 135 note 2 A. Strahan, Geological Survey Memoir of the Isle of Purbeck, 1898, p. 169.
page 135 note 3 C. Barrels, 'Recherches sur le terrain crétacé supérieur de l'Angleterre et de l'Irlande.' Mém. Soc. Géol. Nord, 1876.
page 137 note 1 Huüy, R. J., 'Traité de Minéralogie,' 1801, plate xxvii, fig. 42Google Scholar.
page 137 note 2 Penfield, S. L. and Ford, W. E., Amer. Journ. Sci., 1900, vol. x, p. 242 Google Scholar.
page 137 note 3 Heddle, M. F., 'Mineralogy of Scotland,' 1901, vol. i, plate xxv, fig. 54Google Scholar.