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Posted in response to Need a little help from Kevin P on July 14, 2007 at 17:48:38:

Re: Need a little help

Hi Kevin,

Most of your rocks (#34 to #40) appear to be agates. The smaller pieces (29 to 33) I can't tell, but maybe pieces of that agate, also. #33 is too fuzzy a photo to be helpful, but it does appear to be severely weathered.

Are you sure the pieces are magnetic? All of them? Which ones? Agate should not be magnetic. It is, in effect, layered microcrystalline quartz from solution. Check the hardness with the tip of a knife. Quartz is harder than steel and you should not be able to scratch it.

Check back with what you discover.

Don

From Don Peck - July 15, 2007 at 10:38:41

Message: 64605

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