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1. On the Existence of peculiar Crystals in the Cavities of Topaz. Part II

Published online by Cambridge University Press:  16 March 2015

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Extract

The author, after alluding to his former papers on the fluids in topaz, described, in Section I., the form and position of the strata in the minerals in which the cavities occur. They generally occur in immense numbers, occupying extensive strata, and injuring the transparency of the mineral. These strata occupy every possible position, and have every possible curvature; their shape is equally irregular; and it is probable that, in every case, some edge or angle of the stratum touches the surface.

Type
Proceedings 1844-45
Copyright
Copyright © Royal Society of Edinburgh 1850

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