By modern mineralogists the name chalcedony is restricted to those kinds of silica which occur not in distinct crystals like ordinary quartz, but in concretionary, mammillated or stalactitic forms, which break with a fine splintery fracture, and display a delicate fibrous structure.
But Frederick was unwilling to break with Russia, with whom he was negotiating the partition of Poland; Austria in these circumstances dared not take the offensive; and Maria Theresa was compelled to purchase the modification of the extreme claims of Russia in Turkey by agreeing to, and sharing in, the spoliation of Poland.
He did not, however, break with his party immediately, and favoured the so-called English Bill (see Kansas); in fact it was partly due to his influence that a sufficient number of anti-Lecompton Democrats were induced to vote for that measure to secure its passage.
He arrived at St Petersburg at the psychological moment when the tsar had made up his mind to break with Napoleon.
As principal of Pusey House Mr Gore exercised a wide influence over undergraduates and the younger clergy, and it was largely, if not mainly, under this influence that the "Oxford Movement" underwent a change which to the survivors of the old school of Tractarians seemed to involve a break with its basic principles.
