From: mark ferguson <refam_at_meteoritecentral.com>
Date: Thu Apr 22 10:18:27 2004
Hi Desmond and list
Some time back it was posted that ferric cloride (a pc
board etchant avail at radio shack and electronics
suppliers) works well.
--- Desmond Lee <dessyc_at_hksyc.edu.hk> wrote:
> hi, all,
> I got some suspected iron meteorites. I want to try
> to etch them.
> Does anyone know other easy methods to etch instead
> of using nitric acid? I find it difficult to buy
> nitric acid and quite danger to handle myself.
> Could anyone tell me other methods? Any existing
> spying chemicals or solutions that I can buy easily
> and less harmful?
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Received on Mon 17 Feb 2003 12:51:22 AM PST