Are many Rocks magnetic?

[Shemanese]

I know Magnetite is. Anyone have a pic of magnetic rocks.? Or a good site to see them. What others are? Is it real common? I'll try to post of pics later of some that I found. Thanks

 

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[vibes]

do a search on minerals of iron ore and look-up hot rocks as well.

 

[Kneedeep]

Hello, meteorites are very magnetic with most being an Iron/Nickle mix but are also considered to be very rare. Hope this helps.

Mark

 

[allen_idaho]

Are you asking what types of rocks have a natural magnetic pull? Or just what types of rocks can be picked up with a magnet?

 

[Shemanese]

Well, how common is it for a rock to be magnetic? If you took a magnet and put it on 100 rocks, how many would attract? I realize demographics play a part, but just a WAG needed. Thanks

 

[allen_idaho]

Basically any type of rock with a higher iron content will be attracted to a magnet. These will usually be either dark black or reddish in color. They can be found just about anywhere, even in granite, depending on your area.

 

[firedup]

cumberlandite it is only found in cumberland rhode island and in a two mile wide path out to Nantucket . there is one out cropping in cumberland r.i. and it is the state rock. it was draged to Nantucket by a glacier 2million years ago.there are several differant colors with black being The most common. it was formed by a volcano some 5 million years ago when some 21 minerals were melted together. very heavy ,magnetic and makes a detector go wild, but it is rock.

 

[searcher]

Hematite is another.
Hematite is not naturally magnetic. If it is heated it is highly magnetic.
I have found some this way and have heated some to see if it was true.

 

[Cappy Z.]

Hematite is another.
Hematite is not naturally magnetic. If it is heated it is highly magnetic.
I have found some this way and have heated some to see if it was true.

Just FYI...A local gemologist told me Hematite is very very toxic. Please be careful.

 

[searcher]

How can Hematite be toxic?

 

[Cappy Z.]

How can Hematite be toxic?

The dust from grinding is what I was told.

 

[ivan salis]

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