Recently I got a couple samples of London mine gold ore from Astrobleme which I finally got soaked and rinsed through a muriatic or hydrochloric cleaning dip.
Two different samples one of which is slabbed and the other is still uncut or raw as would be found.
First, here is a before cleaning pic of the raw sample that is not slabbed yet
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After the cleaning dip. I think it showed a big difference after the iron/rusting stains were removed......Looks like it has several metals involved with this teluride veining....gold, silver, pyrite/galena and or lead? Johnny can confirm more on that too...... Looks good though, I may have to slice this one up to see what can be done with it also.
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Sample 2 which I did slab was very heavy with metal veining..... however I didn't get a before pic on these so after cleaning this is what they look like.
Actually not as much difference on these since that sample had what seemed like much more of the silver, pyrite veins. Solid looking though and hopefully I can work something out of one or two that's stable.
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Thank you for the samples Johnny, very interesting pieces and associated history of origin!