what is the heavest rock in the world ?

Answer 1

The world IS a rock.

Answer 2

If you mean which would be the most dense rock found in nature (ie, having the highest specific gravity), then the answer would be naturally occurring Platimun, which has a density of about 22 (ie, it is 22 times more dense than water). Platinum occurs with similar metals Osmium and Paladium, which are both slightly more dense than Platinum, so it could be possible that a naturally occurring alloy of those metals would be more dense than Platinum. Gold, although rare, is a lot more common than platinum, and has a specific gravity of about 19.

Rather than rare native metals such as Platinum and Gold, the most dense relatively common mineral is cinnabar, the ore of mercury; which has a specific gravity of 8. This is the most dense non-metallic mineral (ie, it does not have a metallic sheen). Far more common is the most usual ore of lead, galena; which has a specific gravity of about 7.5.

If the question specifically refers to rocks (ie, mixtures of minerals, and not the minerals themselves), and not to ores of metals, then the most dense rocks would probably be the igneous pyroxenites and amphibolites, which lack silica, and have specific gravities of about 3 to 3.5.

Answer 3

The piece of petrified wood I had to heft out of the trunk of my car and into my backyard! The back of my Buick was just inches from the road when I drove home with it in my trunk!

Answer 4

The heaviest one I know of is the rock of Gibraltar.

Answer 5

that would be a huge chuck of metamorphic rock. Metamorphic rock is very dense

Answer 6

the third rock from the sun ^^

Answer 7

dream theatre

Answer 8

the one in my pokcet