MythicQuale

That article is bogus. All their photo examples are non-pure gold, while talking about pure gold's properties... The American Double Eagle coin they feature is only 90% gold, balance copper. The Krug is 91.7% gold (Crown gold), balance copper. So what are they talking about? It's weird.
Their Roman example might be 99% gold, but it varied and lots of emperors issued those coins for a roughly 400+ year period. I wouldn't expect modern standards of quality control with 2,000 year old coins, even Roman ones...

Out of silver, gold, palladium, iridium, platinum, titanium, stainless steel, aluminum, chromium, and rhodium (maybe chuck in brass, tungsten, osmium and copper for fun), can anyone help list these metals in order of susceptibility to corrosion, staining, rusting, and tarnishing for long term storage in 'average' air?
I'd love to know how they all compare against each other and it may influence my own storage of some of these metals.
Here's six to get started. I'd love know where the others fit in. Warning, there may be errors in the ordering as I did very little research to obtain these!
Metals listed by least to most resistant to corrosion:
Iridium. Notes: "Iridium is the most corrosion-resistant material known. " (source)
Platinum: This is apparently lower in reactivity than gold (source). However I don't think "reactivity" necessarily equates to "most likely to rust" etc.
Gold
Silver
Copper
Aluminum
Osmium. Notes: "Osmium is the hardest of the group and has the highest melting point, but its ready oxidation is a limitation." (source)

Following on from my old thread where I asked if my gold coin was genuine, I finally received my Kickstarter phone-attachment microscope and have been able to delve into some of the details of the coin. All of these are genuine photos and not CGI!
First off a picture of the actual whole coin:

Here's a picture of Britannia's face:

 
And Elizabeth II on the other side:

 
Here's a nice photo which encompasses some of the security features of the coin, including the hologram where you can barely make out the trident, and also the teeny weeny text at the top middle - "DE":

 
Here's a close up of some of that tiny text:
 
 
 

 
And also a close up of that hologram:

 
I haven't exactly treated the coin with kid gloves (handling and ping tests with metal tweezers etc.), so there are some scratches and nicks evident:

 
Here's a close up of the '2' from the year 2021 written on the coin:

 
Here's a close up of part of the shield. I like the mottled effect surrounding it:

 
Here's a close up of that mottled effect background:

 
Finally, I couldn't resist zooming into the edge of the coin:

 
And a close up...

 
And zooming in again!!

 
And one last further zoom!!

Following on from my old thread where I asked if my gold coin was genuine, I finally received my Kickstarter phone-attachment microscope and have been able to delve into some of the details of the coin. All of these are genuine photos and not CGI!
First off a picture of the actual whole coin:

Here's a picture of Britannia's face:

 
And Elizabeth II on the other side:

 
Here's a nice photo which encompasses some of the security features of the coin, including the hologram where you can barely make out the trident, and also the teeny weeny text at the top middle - "DE":

 
Here's a close up of some of that tiny text:
 
 
 

 
And also a close up of that hologram:

 
I haven't exactly treated the coin with kid gloves (handling and ping tests with metal tweezers etc.), so there are some scratches and nicks evident:

 
Here's a close up of the '2' from the year 2021 written on the coin:

 
Here's a close up of part of the shield. I like the mottled effect surrounding it:

 
Here's a close up of that mottled effect background:

 
Finally, I couldn't resist zooming into the edge of the coin:

 
And a close up...

 
And zooming in again!!

 
And one last further zoom!!

Thanks both!
GoldDiggerDave, I used this Kickstarter product costing around £2400 in total.
Only kidding, I think I paid more like $56 for it haha (the quality is as much as microscopes costing 100x  the price according to the aforementioned site). You get two tiny lenses, one for close ups, and one for REALLY close ups. Both stick to the camera lens on your phone, no extra software needed (I just used my phone's camera). I love how I can free-style move the camera and see it on the relatively large phone screen in realtime at 30fps. You do need a steady hand for the close ups, and it's otherwise easy to make photos look blurred! Looks like this is their website, but I can't see a way to purchase it from there.

Following on from my old thread where I asked if my gold coin was genuine, I finally received my Kickstarter phone-attachment microscope and have been able to delve into some of the details of the coin. All of these are genuine photos and not CGI!
First off a picture of the actual whole coin:

Here's a picture of Britannia's face:

 
And Elizabeth II on the other side:

 
Here's a nice photo which encompasses some of the security features of the coin, including the hologram where you can barely make out the trident, and also the teeny weeny text at the top middle - "DE":

 
Here's a close up of some of that tiny text:
 
 
 

 
And also a close up of that hologram:

 
I haven't exactly treated the coin with kid gloves (handling and ping tests with metal tweezers etc.), so there are some scratches and nicks evident:

 
Here's a close up of the '2' from the year 2021 written on the coin:

 
Here's a close up of part of the shield. I like the mottled effect surrounding it:

 
Here's a close up of that mottled effect background:

 
Finally, I couldn't resist zooming into the edge of the coin:

 
And a close up...

 
And zooming in again!!

 
And one last further zoom!!

Following on from my old thread where I asked if my gold coin was genuine, I finally received my Kickstarter phone-attachment microscope and have been able to delve into some of the details of the coin. All of these are genuine photos and not CGI!
First off a picture of the actual whole coin:

Here's a picture of Britannia's face:

 
And Elizabeth II on the other side:

 
Here's a nice photo which encompasses some of the security features of the coin, including the hologram where you can barely make out the trident, and also the teeny weeny text at the top middle - "DE":

 
Here's a close up of some of that tiny text:
 
 
 

 
And also a close up of that hologram:

 
I haven't exactly treated the coin with kid gloves (handling and ping tests with metal tweezers etc.), so there are some scratches and nicks evident:

 
Here's a close up of the '2' from the year 2021 written on the coin:

 
Here's a close up of part of the shield. I like the mottled effect surrounding it:

 
Here's a close up of that mottled effect background:

 
Finally, I couldn't resist zooming into the edge of the coin:

 
And a close up...

 
And zooming in again!!

 
And one last further zoom!!

No that’s not possible. Been working with macro lenses last 10 years (1:1 till 5:1)and the greater the magnification, the shallower the depth of field. I guess this is the same way at microscopic level. This is just the law of physics. However, some macro enthusiast use a method called ‘stacking’, taking hundreds/thousands of photos with each photo shifting their focuspoint (with small overlap) and then afterwards stitch them together in photoshop. This way more depth of field in a macro photo is forcefully created. It takes a lot of patience but there are some helping tools out there like computer automated sleds where you can put your lens on allowing it to shift the focus with very small increments each photo.

Following on from my old thread where I asked if my gold coin was genuine, I finally received my Kickstarter phone-attachment microscope and have been able to delve into some of the details of the coin. All of these are genuine photos and not CGI!
First off a picture of the actual whole coin:

Here's a picture of Britannia's face:

 
And Elizabeth II on the other side:

 
Here's a nice photo which encompasses some of the security features of the coin, including the hologram where you can barely make out the trident, and also the teeny weeny text at the top middle - "DE":

 
Here's a close up of some of that tiny text:
 
 
 

 
And also a close up of that hologram:

 
I haven't exactly treated the coin with kid gloves (handling and ping tests with metal tweezers etc.), so there are some scratches and nicks evident:

 
Here's a close up of the '2' from the year 2021 written on the coin:

 
Here's a close up of part of the shield. I like the mottled effect surrounding it:

 
Here's a close up of that mottled effect background:

 
Finally, I couldn't resist zooming into the edge of the coin:

 
And a close up...

 
And zooming in again!!

 
And one last further zoom!!

Thanks both!
GoldDiggerDave, I used this Kickstarter product costing around £2400 in total.
Only kidding, I think I paid more like $56 for it haha (the quality is as much as microscopes costing 100x  the price according to the aforementioned site). You get two tiny lenses, one for close ups, and one for REALLY close ups. Both stick to the camera lens on your phone, no extra software needed (I just used my phone's camera). I love how I can free-style move the camera and see it on the relatively large phone screen in realtime at 30fps. You do need a steady hand for the close ups, and it's otherwise easy to make photos look blurred! Looks like this is their website, but I can't see a way to purchase it from there.

Following on from my old thread where I asked if my gold coin was genuine, I finally received my Kickstarter phone-attachment microscope and have been able to delve into some of the details of the coin. All of these are genuine photos and not CGI!
First off a picture of the actual whole coin:

Here's a picture of Britannia's face:

 
And Elizabeth II on the other side:

 
Here's a nice photo which encompasses some of the security features of the coin, including the hologram where you can barely make out the trident, and also the teeny weeny text at the top middle - "DE":

 
Here's a close up of some of that tiny text:
 
 
 

 
And also a close up of that hologram:

 
I haven't exactly treated the coin with kid gloves (handling and ping tests with metal tweezers etc.), so there are some scratches and nicks evident:

 
Here's a close up of the '2' from the year 2021 written on the coin:

 
Here's a close up of part of the shield. I like the mottled effect surrounding it:

 
Here's a close up of that mottled effect background:

 
Finally, I couldn't resist zooming into the edge of the coin:

 
And a close up...

 
And zooming in again!!

 
And one last further zoom!!

Following on from my old thread where I asked if my gold coin was genuine, I finally received my Kickstarter phone-attachment microscope and have been able to delve into some of the details of the coin. All of these are genuine photos and not CGI!
First off a picture of the actual whole coin:

Here's a picture of Britannia's face:

 
And Elizabeth II on the other side:

 
Here's a nice photo which encompasses some of the security features of the coin, including the hologram where you can barely make out the trident, and also the teeny weeny text at the top middle - "DE":

 
Here's a close up of some of that tiny text:
 
 
 

 
And also a close up of that hologram:

 
I haven't exactly treated the coin with kid gloves (handling and ping tests with metal tweezers etc.), so there are some scratches and nicks evident:

 
Here's a close up of the '2' from the year 2021 written on the coin:

 
Here's a close up of part of the shield. I like the mottled effect surrounding it:

 
Here's a close up of that mottled effect background:

 
Finally, I couldn't resist zooming into the edge of the coin:

 
And a close up...

 
And zooming in again!!

 
And one last further zoom!!

Thanks both!
GoldDiggerDave, I used this Kickstarter product costing around £2400 in total.
Only kidding, I think I paid more like $56 for it haha (the quality is as much as microscopes costing 100x  the price according to the aforementioned site). You get two tiny lenses, one for close ups, and one for REALLY close ups. Both stick to the camera lens on your phone, no extra software needed (I just used my phone's camera). I love how I can free-style move the camera and see it on the relatively large phone screen in realtime at 30fps. You do need a steady hand for the close ups, and it's otherwise easy to make photos look blurred! Looks like this is their website, but I can't see a way to purchase it from there.

Following on from my old thread where I asked if my gold coin was genuine, I finally received my Kickstarter phone-attachment microscope and have been able to delve into some of the details of the coin. All of these are genuine photos and not CGI!
First off a picture of the actual whole coin:

Here's a picture of Britannia's face:

 
And Elizabeth II on the other side:

 
Here's a nice photo which encompasses some of the security features of the coin, including the hologram where you can barely make out the trident, and also the teeny weeny text at the top middle - "DE":

 
Here's a close up of some of that tiny text:
 
 
 

 
And also a close up of that hologram:

 
I haven't exactly treated the coin with kid gloves (handling and ping tests with metal tweezers etc.), so there are some scratches and nicks evident:

 
Here's a close up of the '2' from the year 2021 written on the coin:

 
Here's a close up of part of the shield. I like the mottled effect surrounding it:

 
Here's a close up of that mottled effect background:

 
Finally, I couldn't resist zooming into the edge of the coin:

 
And a close up...

 
And zooming in again!!

 
And one last further zoom!!

Following on from my old thread where I asked if my gold coin was genuine, I finally received my Kickstarter phone-attachment microscope and have been able to delve into some of the details of the coin. All of these are genuine photos and not CGI!
First off a picture of the actual whole coin:

Here's a picture of Britannia's face:

 
And Elizabeth II on the other side:

 
Here's a nice photo which encompasses some of the security features of the coin, including the hologram where you can barely make out the trident, and also the teeny weeny text at the top middle - "DE":

 
Here's a close up of some of that tiny text:
 
 
 

 
And also a close up of that hologram:

 
I haven't exactly treated the coin with kid gloves (handling and ping tests with metal tweezers etc.), so there are some scratches and nicks evident:

 
Here's a close up of the '2' from the year 2021 written on the coin:

 
Here's a close up of part of the shield. I like the mottled effect surrounding it:

 
Here's a close up of that mottled effect background:

 
Finally, I couldn't resist zooming into the edge of the coin:

 
And a close up...

 
And zooming in again!!

 
And one last further zoom!!

Following on from my old thread where I asked if my gold coin was genuine, I finally received my Kickstarter phone-attachment microscope and have been able to delve into some of the details of the coin. All of these are genuine photos and not CGI!
First off a picture of the actual whole coin:

Here's a picture of Britannia's face:

 
And Elizabeth II on the other side:

 
Here's a nice photo which encompasses some of the security features of the coin, including the hologram where you can barely make out the trident, and also the teeny weeny text at the top middle - "DE":

 
Here's a close up of some of that tiny text:
 
 
 

 
And also a close up of that hologram:

 
I haven't exactly treated the coin with kid gloves (handling and ping tests with metal tweezers etc.), so there are some scratches and nicks evident:

 
Here's a close up of the '2' from the year 2021 written on the coin:

 
Here's a close up of part of the shield. I like the mottled effect surrounding it:

 
Here's a close up of that mottled effect background:

 
Finally, I couldn't resist zooming into the edge of the coin:

 
And a close up...

 
And zooming in again!!

 
And one last further zoom!!

Following on from my old thread where I asked if my gold coin was genuine, I finally received my Kickstarter phone-attachment microscope and have been able to delve into some of the details of the coin. All of these are genuine photos and not CGI!
First off a picture of the actual whole coin:

Here's a picture of Britannia's face:

 
And Elizabeth II on the other side:

 
Here's a nice photo which encompasses some of the security features of the coin, including the hologram where you can barely make out the trident, and also the teeny weeny text at the top middle - "DE":

 
Here's a close up of some of that tiny text:
 
 
 

 
And also a close up of that hologram:

 
I haven't exactly treated the coin with kid gloves (handling and ping tests with metal tweezers etc.), so there are some scratches and nicks evident:

 
Here's a close up of the '2' from the year 2021 written on the coin:

 
Here's a close up of part of the shield. I like the mottled effect surrounding it:

 
Here's a close up of that mottled effect background:

 
Finally, I couldn't resist zooming into the edge of the coin:

 
And a close up...

 
And zooming in again!!

 
And one last further zoom!!

Excellent point. This is why I think cryptos and precious metals are a good solid investment. Both take up minimal room/weight and/or resources, and more can't just be printed if the banks/FRS decide to on a whim.
I'm not totally against the idea of a UBI, especially as robots start taking our jobs and where welfare discourages people from looking for work (why would they if they'll stop receiving benefits once they find a job?), but one can't rule out the risk of the UBI increasingly over time, where even hyperinflation could set in or at least the gross devaluation of the pound.

Following on from my old thread where I asked if my gold coin was genuine, I finally received my Kickstarter phone-attachment microscope and have been able to delve into some of the details of the coin. All of these are genuine photos and not CGI!
First off a picture of the actual whole coin:

Here's a picture of Britannia's face:

 
And Elizabeth II on the other side:

 
Here's a nice photo which encompasses some of the security features of the coin, including the hologram where you can barely make out the trident, and also the teeny weeny text at the top middle - "DE":

 
Here's a close up of some of that tiny text:
 
 
 

 
And also a close up of that hologram:

 
I haven't exactly treated the coin with kid gloves (handling and ping tests with metal tweezers etc.), so there are some scratches and nicks evident:

 
Here's a close up of the '2' from the year 2021 written on the coin:

 
Here's a close up of part of the shield. I like the mottled effect surrounding it:

 
Here's a close up of that mottled effect background:

 
Finally, I couldn't resist zooming into the edge of the coin:

 
And a close up...

 
And zooming in again!!

 
And one last further zoom!!

Following on from my old thread where I asked if my gold coin was genuine, I finally received my Kickstarter phone-attachment microscope and have been able to delve into some of the details of the coin. All of these are genuine photos and not CGI!
First off a picture of the actual whole coin:

Here's a picture of Britannia's face:

 
And Elizabeth II on the other side:

 
Here's a nice photo which encompasses some of the security features of the coin, including the hologram where you can barely make out the trident, and also the teeny weeny text at the top middle - "DE":

 
Here's a close up of some of that tiny text:
 
 
 

 
And also a close up of that hologram:

 
I haven't exactly treated the coin with kid gloves (handling and ping tests with metal tweezers etc.), so there are some scratches and nicks evident:

 
Here's a close up of the '2' from the year 2021 written on the coin:

 
Here's a close up of part of the shield. I like the mottled effect surrounding it:

 
Here's a close up of that mottled effect background:

 
Finally, I couldn't resist zooming into the edge of the coin:

 
And a close up...

 
And zooming in again!!

 
And one last further zoom!!

Thanks both!
GoldDiggerDave, I used this Kickstarter product costing around £2400 in total.
Only kidding, I think I paid more like $56 for it haha (the quality is as much as microscopes costing 100x  the price according to the aforementioned site). You get two tiny lenses, one for close ups, and one for REALLY close ups. Both stick to the camera lens on your phone, no extra software needed (I just used my phone's camera). I love how I can free-style move the camera and see it on the relatively large phone screen in realtime at 30fps. You do need a steady hand for the close ups, and it's otherwise easy to make photos look blurred! Looks like this is their website, but I can't see a way to purchase it from there.

Following on from my old thread where I asked if my gold coin was genuine, I finally received my Kickstarter phone-attachment microscope and have been able to delve into some of the details of the coin. All of these are genuine photos and not CGI!
First off a picture of the actual whole coin:

Here's a picture of Britannia's face:

 
And Elizabeth II on the other side:

 
Here's a nice photo which encompasses some of the security features of the coin, including the hologram where you can barely make out the trident, and also the teeny weeny text at the top middle - "DE":

 
Here's a close up of some of that tiny text:
 
 
 

 
And also a close up of that hologram:

 
I haven't exactly treated the coin with kid gloves (handling and ping tests with metal tweezers etc.), so there are some scratches and nicks evident:

 
Here's a close up of the '2' from the year 2021 written on the coin:

 
Here's a close up of part of the shield. I like the mottled effect surrounding it:

 
Here's a close up of that mottled effect background:

 
Finally, I couldn't resist zooming into the edge of the coin:

 
And a close up...

 
And zooming in again!!

 
And one last further zoom!!

Thanks both!
GoldDiggerDave, I used this Kickstarter product costing around £2400 in total.
Only kidding, I think I paid more like $56 for it haha (the quality is as much as microscopes costing 100x  the price according to the aforementioned site). You get two tiny lenses, one for close ups, and one for REALLY close ups. Both stick to the camera lens on your phone, no extra software needed (I just used my phone's camera). I love how I can free-style move the camera and see it on the relatively large phone screen in realtime at 30fps. You do need a steady hand for the close ups, and it's otherwise easy to make photos look blurred! Looks like this is their website, but I can't see a way to purchase it from there.

Following on from my old thread where I asked if my gold coin was genuine, I finally received my Kickstarter phone-attachment microscope and have been able to delve into some of the details of the coin. All of these are genuine photos and not CGI!
First off a picture of the actual whole coin:

Here's a picture of Britannia's face:

 
And Elizabeth II on the other side:

 
Here's a nice photo which encompasses some of the security features of the coin, including the hologram where you can barely make out the trident, and also the teeny weeny text at the top middle - "DE":

 
Here's a close up of some of that tiny text:
 
 
 

 
And also a close up of that hologram:

 
I haven't exactly treated the coin with kid gloves (handling and ping tests with metal tweezers etc.), so there are some scratches and nicks evident:

 
Here's a close up of the '2' from the year 2021 written on the coin:

 
Here's a close up of part of the shield. I like the mottled effect surrounding it:

 
Here's a close up of that mottled effect background:

 
Finally, I couldn't resist zooming into the edge of the coin:

 
And a close up...

 
And zooming in again!!

 
And one last further zoom!!

Following on from my old thread where I asked if my gold coin was genuine, I finally received my Kickstarter phone-attachment microscope and have been able to delve into some of the details of the coin. All of these are genuine photos and not CGI!
First off a picture of the actual whole coin:

Here's a picture of Britannia's face:

 
And Elizabeth II on the other side:

 
Here's a nice photo which encompasses some of the security features of the coin, including the hologram where you can barely make out the trident, and also the teeny weeny text at the top middle - "DE":

 
Here's a close up of some of that tiny text:
 
 
 

 
And also a close up of that hologram:

 
I haven't exactly treated the coin with kid gloves (handling and ping tests with metal tweezers etc.), so there are some scratches and nicks evident:

 
Here's a close up of the '2' from the year 2021 written on the coin:

 
Here's a close up of part of the shield. I like the mottled effect surrounding it:

 
Here's a close up of that mottled effect background:

 
Finally, I couldn't resist zooming into the edge of the coin:

 
And a close up...

 
And zooming in again!!

 
And one last further zoom!!