We have many rock identification-request questions and some excellent guidelines on how to ask them, guidelines which are not usually followed through. There's been plenty of discussion on meta on those questions before, such as this clean-up request, and since recently we have a custom close reason.
We get many questions that do not follow the identification request guidelines, but are answerable nevertheless. For a recent example, we put on hold Can anyone identify the rock this amethyst crystal was found in?, which does not follow the guidelines, but now this question has two re-open votes and comments stating that the answer is clear without further information.
How do we want to handle identification-request questions that fail to follow the guidelines, but are still answerable? Do we keep them open and answer them, or should we be principled and request that the information is added? Although I can sympathise with the idea to not close questions needlessly, they may serve as broken windows. How should we handle this?