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 Replies: 22 / Views: 3,493 |
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Valued Member
United States
99 Posts |
This is a 2014 silver armenia coin nestled in a quartz cluster for about (4 months), notice the affect is has on the silver! Beautiful toning!   Edited by David 1974
12/14/2014 8:27 pm
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Pillar of the Community
United States
2563 Posts |
Woah. That's gonna count as AT, but that's pretty amazing..
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Valued Member
 United States
99 Posts |
Edited by David 1974
12/14/2014 8:28 pm
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Pillar of the Community
Canada
2517 Posts |
I wonder what's in the quartz? As far as I know it's just a Silicon dioxide crystal.
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Valued Member
United States
99 Posts |
Don't know. But it's a natural quartz cluster. It has a strong affect on the coin for sure
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Bedrock of the Community
United States
10045 Posts |
Quote:
As far as I know it's just a Silicon dioxide crystal. Right--nothing for silver to react with--it's not taking oxygen from the silica. The silver's reacting with something in the atmosphere, such as sulfur from diesel exhaust, etc. |
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Valued Member
United States
99 Posts |
Diesel in our home? Nope, must be something else.
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Pillar of the Community
United States
1424 Posts |
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Pillar of the Community
1325 Posts |
dioxide.. thus it is oxidizing the silver. silicon used for semi-conducters...Silicon Valley...
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Valued Member
United States
99 Posts |
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Pillar of the Community
United States
1215 Posts |
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Valued Member
United States
99 Posts |
Im thinking its the quartz itself
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Pillar of the Community
United States
1215 Posts |
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Bedrock of the Community
United States
10045 Posts |
Quote:
You know, you only need a little sulfur to have a lot of effect. Yeah--it doesn't take much; I doubt you would even need to smell the sulfur dioxide or hydrogen disulphide. I've got silver vessels that tarnish to near black in 6-8 months. Quote:
dioxide.. thus it is oxidizing the silver. Quartz is already oxidized silicon--it is not letting those oxygen go; they won't oxidize other things.  Edited by DVCollector
12/14/2014 9:29 pm
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Moderator
 Canada
10456 Posts |
Quote:
But it's a natural quartz cluster. It has a strong affect on the coin for sure. Nope. While quartz crystals do have piezoelectric properties, it basically is chemically inert (hence why it is so abundant in the Earth's crust, and occupies the lowest potential to weather in the Goldich dissolution series). What is toning your coin is whatever it is being exposed to in the air and environment you have it placed in. Humidity, exposure to sunlight, air quality all are playing a role in toning of the coin. Lots of people believe that quartz crystals have all kinds of special "powers"... but as a geologist, I think it is pretty much a shovelful of the finest fertilizer... "Discovery follows discovery, each both raising and answering questions, each ending a long search, and each providing the new instruments for a new search." -- J. Robert OppenheimerContent of this post is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License. See: http://creativecommons.org/licenses...0/deed.en_USMy eBay store
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Valued Member
United States
99 Posts |
Why would the top of the coin tone faster than the bottom?
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Replies: 22 / Views: 3,493 |
Posted 12/14/2014 8:24 pm
