At present materials is used in conjuction with an allied tag for mineral resources in more than one question
For instance:
What source of raw materials could be found in space for making plastics?
What resources could be gained from asteroid mining that would be worth the effort?
Does Mars contain materials that could be used to build a space colony?
I propose a new extra-terrestrial-minerals to clean-up the materials tag.
Thoughts, anybody?
I'm against creating another, somewhat too specific tag extra-terrestrial-minerals while we still haven't utilized slightly broader tag minerals, previously proposed in one of our earlier Topic of The Week.
I think that the problem stems from improper or insufficient tagging of those questions, not that we need another tag. We already have natural-resources that seems to have been missed in those three cases. Here's what I propose:
The first and the third question in your list could use both materials and natural-resources tags, since they're asking about natural resources as well as in-situ resource utilization to produce certain synthetic materials. The third one could also use the construction tag.
The second question should be re-tagged to use natural-resources instead of materials.
How does that sound?
Update: I went ahead and added the suggested tags to those three questions mentioned. ;)
