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A lodestone is a magnetized piece of rock. They are made of made of magnetite, a type of iron ore. For a piece of magnetite to be magnetic, it must be exposed to a magnetic field.
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What is limestones magnetism?
Limestone is non-magnetic.
What kind of metal is magnetic?
Cobalt,Steel,Iron,Lodestones and many more.
What were early natural magnets known as?
lodestones
What type of rock is K2 made of?
The K2 is recorded in sedimentary rocks, like shales, limestones, and sandstones.
Why does the north and south have anything to do with magnets?
Because the Earth has a Magnetic filed - with magnetic poles at roughly the same places as the geographic North and South poles, a freely suspended magnet will tend to orient to point in the direction of those magnetic poles. Also - because the magnetic poles exist - when natural forces cause iron to liquefy, there is tendency for it to align with the magnetic field of the earth - creating the famous "lodestones" that were sometimes used by ancient mariners to create compasses.Note that lodestones are not pure iron, rather they are magnetite - Iron(II,III) oxide)
Are lodestones made from plants?
No, lodestones are naturally occurring magnetic rocks.
Are magnetic rocks known as lodestones?
Although Lodestone is a naturally occurring magnetic rock, not all magnetic rocks are known as lodestone, and it is only magnetized because of the magnetite mineral in it.
What is limestones magnetism?
Limestone is non-magnetic.
What rocks react to HCl by fizzing?
Limestones and carbonates.
When was magnetism discoverd?
It was discovered in the stone age. Magnetic stones 'Lodestones' were used for navigation for years.
Why was the discovery of lodestones in Greece important to navigators hundreds of years ago?
Gave them magnetic north
Is limestone sedimenrtry or igneas?
limestones are sedimentery rocks because it is formed by layers.
What is the word beginning with L for a stone that can be found that is magnetic?
These are known as lodestones (sometimes spelt loadstone) and are formed of the mineral magnetite.
What kind of metal is magnetic?
Cobalt,Steel,Iron,Lodestones and many more.
Why did early Chinese use lodestones for navigation?
Because they are naturally occurring magnets / compasses (i.e. can indicate magnetic north).
Why is it believed that the Earth's magnetic field has reversed its polarity in the past?
By observing magnetic rocks in geological deposits.By observing magnetic rocks in geological deposits.By observing magnetic rocks in geological deposits.By observing magnetic rocks in geological deposits.
What are some other chemical sedimentary rocks other than halite?
Certain limestones, and gypsum.
