[Ki] Does not occur naturally. If it did, it wouldn't have to be mass produced.

[I] Not money.

[Rosie] Yes, mostly metal.

I can think of things that occur naturally and are also mass produced. Diamonds, for example.

[CdM] I would say that Rakk answered the question on 'mass produced' correctly, as it means the production of large numbers or quantities standardised items, I do not see how this could apply to diamonds.

[CdM] Not bigger that a telephone box.
[Rosie] Tool? Only very broadly speaking.
[Inkspot] Can be electric.

Perhaps "mass-processed" would have been more accurate. Metals occur naturally but most have to be processed in order to have any use.

[Kim] Smaller than a toaster.

Kikm I agree that minerals can individually be processed, however telephones, fridges, cars etc are not mass processed they are mass produced.

[Inkspot] Normally used in the home.

[Inkspot] I'd say that this company and this company are pretty clearly mass-producing diamonds.

[CdM] I expect most players would own one (or more).
Those companies aren't digging them out of the ground.

[Raak] No. They are producing them. En masse. Which is my point. If the answer on the card was "Diamonds", then the correct response to both "Occurring naturally?" and "Mass-produced?" would be "Yes".

How about chicken eggs as another example? Unless you take a very narrow view of mass-production, I think they would qualify. Or what about fresh water from a desalination plant?

I read Raak's answer as meaning that this particular thing doesn't occur naturally, rather than arguing that the two categories are mutually exclusive.