i have always been interested in the black stone in the kaaba. reputed to be an ancient meteorite. i find that fascinating that in this age, a substantial number of persons worldwide pray to a metorite from biblical times.
The Arabians have had access to a storehouse of meteorites out in the Empty Quarter for hundreds of years. When they need a new one they just go get it. They seem also to have served to help them get a head start on making corrosion resistant or "stainless steel" weapons, armor, decorative screens and so on.
The black stone is reputedly a meteorite; since it hasn’t been studied, there’s not really any way to know for sure. It could be a regular stone that has become black from all the human body contact, polished smooth, and of course, coated with dead cells and saliva. :’)