Aluminium or aluminum (see below) is a chemical element with symbol Al and atomic number 13. It is a silvery-white, soft, nonmagnetic, ductile metal in the boron group. By mass, aluminium makes up about 8% of the Earth's crust; it is the third most abundant element after oxygen and silicon and the most abundant metal in the crust, though it is less common in the mantle below. Aluminium metal is so chemically reactive that native specimens are rare and limited to extreme reducing environments. Instead, it is found combined in over 270 different minerals. The chief ore of aluminium is bauxite.
Aluminium is remarkable for the metal's low density and its ability to resist corrosion through the phenomenon of passivation. Aluminium and its alloys are vital to the aerospace industry and important in transportation and building industries, such as building facades and window frames. The oxides and sulfates are the most useful compounds of aluminium.
Despite its prevalence in the environment, no known form of life uses aluminium salts metabolically, but aluminium is well tolerated by plants and animals. Because of these salts' abundance, the potential for a biological role for them is of continuing interest, and studies continue....LESS
BEIJING (AP) — China's government on Thursday warned "there is no winner in a trade war" after an aide to President Donald Trump called in published comments for a tougher stance toward Beijing. A foreign ministry spokeswoman, Hua Chunying, appealed for dialogue to preserve stable relations when asked about the comments by Trump's chief strategist, Steve Bannon.
ATHENS, Ala. (AP) — Authorities say an Alabama man whacked his twin brother with an aluminum baseball bat because he didn't want to share tacos. The News Courier reports that 19-year-old Tyler Dukes of Athens was arrested by Limestone County sheriff's deputies Thursday and charged with second-degree domestic violence.