The disposition of a U.S. real property interest by a foreign person (the transferor) is subject to income tax withholding (IRC section 1445). The transferee is the withholding agent. If you are the transferee, you must find out if the transferor is a foreign person.
Looking directly at the crucible when magnesium first reacts with oxygen can damage your eyes. 5 years ago Magnesium metal is burned in air forming magnesium oxide.
A modern crucible used in the production of silicon ingots via the Czochralski process. A crucible is a container that can withstand very high temperatures and is used for metal, glass, and pigment production as well as a number of modern laboratory processes.