Hey, sorry about not blogging for awhile! I was sick last week and did not get around to my minerals, but now that I am better, here is a mineral!Protactinium is a shiny and silvery radioactive metal. It tarnishes very slowly in the air. It is one of the rarest and most expensive naturally occurring elements, costing $280 per gram. The most that has been found so far was 125 grams in Great Britain in 1961- it was found in radioactive nuclear waste. Even so, protactinium is radioactive on its own and because of that must be handled with extreme delicacy and care.
It is found in many uranium ores, and can also be obtained by extracting it from uranium. So far it has only been used in research projects.
No comments:
Post a Comment