| Show RADIUM FOUND IN BALTIMORE but deposits however are not expected to be commercially valuable A deposit of radium bearing ore within the city limits of baltimore may bo be seen by anyone who strolls out beyond the wyman property near wyman park to the abandoned quarry which was formerly known as quarry says bays the baltimore sun unfortunately the ore Is not plentiful enough to make it worth while to extract the radium according to dr joseph T of the geological department of johns hopkins university that small deposits of uranium ore were wera to be found in the quarry has been known for at least twenty five years says saya doctor by the savants savanis of the hopkins but it la Is not commercially valuable the ore to la found in pegmatite dikes or layers and crevasses cre in the rocks it was probably deposited there thinks doctor in a molten state as pitchblende by aci oxidation dation and decomposition it Is now la in the form of or uranium mica so called because it is composed of thin flakes like ordinary mica but has a greenish yellow tone that is unmistakable to the expert in such things radium is extracted from in a a very small way in portugal the only important sources of radium known at present are the pitchblende mines in austria and the deposits in colorado formerly that ore was sent to europe to be used tor for making dyes from the uran ulm then it was found that the european purchasers were getting radium as well as dyes and there was a great rush to get the radium mines A large part of the deposits have been reserved for the uses of medicine and science through the efforts of doctor kelly working in conjunction with the united states bureau of mines |
