MadSci Network: Chemistry
Query:

Subject: What type of magnetic materials are we finding in typical potting soil?

Date: Sat Oct 14 00:27:12 2000
Posted by Ryan
Grade level: 7-9 School: Indian Trails
City: Winter Springs State/Province: FL Country: USA
Area of science: Chemistry
ID: 971497632.Ch
Message:

Using a magnet, we have extracted material from potting soil floating in 
water. Question: How do I determine what type of metals these are? They 
are thin black/grey pieces.  Are these what they call 'Rare Earth 
Metals'?   Do they call these 'ferrites'?

Thanks,
Ryan, 
Student


Re: What type of magnetic materials are we finding in typical potting soil?

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