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I.—Banded and Brecciated Concretions1

Published online by Cambridge University Press:  01 May 2009

John Ruskin
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Extract

When we find at the sides of veins, the veinstone rent into laminæ, as I tried to represent in Plate XX. of Vol. IV. it is easy to think of the fracture as violent, and of the disruption of the vein as sudden.

Type
Original Articles
Information
Geological Magazine , Volume 6 , Issue 66 , December 1869 , pp. 529 - 534
Copyright
Copyright © Cambridge University Press 1869

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Footnotes

1

For former papers see Geol. Mag., 1867, Vol. IV. pp 337 and 481; also 1868, Vol. V. pp. 12, 156, and 208.

References

page 531 note 1 Of course I do not vouch for any so wide generalization as this absolutely. If ever one ventures to do such a thing, the next stone one takes up on a dealer's counter is sure to he an exception to the announced law; but I am confident that any mineralogist can fortify the statement from his own experience quite enough to justify our reasoning upon it.