Meteorites or Iron Slag, Volcanic Rock, Etc..

[KJW]

I found these today in a creek. A magnet will stick to different spots on all 3 of them but will not stick in some spots. Any help with what these are would be much appreciated.

 

[Wallydraigle]

Definitely slag.

 

[Gold_Striker]

I love it ! Treasurenet identifies it right away!

I've been concentrating only on the gold prospecting forums and I see I've been missing out! I'm a budding rock hound I'm beginning to think.