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Härtekennwerte gefärbter Flußspatkristalle

Published/Copyright: July 28, 2010
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Abstract

Hardness measurements of clear colourless and of violet fluorspar crystals show that the latter are distinctly harder. The difference in hardness is of the same magnitude as that produced by the irradiation of colourless crystals by x-rays.

Published Online: 2010-07-28
Published in Print: 1961-10
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