# Tag Info

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As of 2019-07-30, Rock identification questions are off-topic on Earth Science Stack Exchange. Please see this meta post. Please find another forum for your question. When you do find another forum, please do refer to the underlying guide, as it is universally useful regardless of where you ask. How to ask an "Identify this rock" question This guide is ...

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Summary It's not enough to just show your work and ask where you went wrong. If you just need someone to check your work, you can always seek out a friend, classmate, or teacher. As a rule of thumb, a good conceptual question should be useful even to someone who isn't looking at the problem you happen to be working on What kinds of questions are ...

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Getting started On earthscience.SE, we use MathJax to format our math. MathJax is a tool that lets us display LaTeX math on a browser. To use mathjax, enclose your math within single($...$) or double($$...$$) dollars. Single dollars make the math inline, for example, Let $x$ be a variable gives: Let $x$ be a variable. On the other hand, double dollars ...

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Describe and photograph a fresh surface. Breaking open a rock to see an unweathered surface is very important for identification. In some cases the minerals show up better on a weathered surface so include both pictures if possible. This isn't as important for mineral crystal specimens and we understand if you are reluctant to destroy your sample but not ...

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A streak test is another test that can be useful in mineral identification. If you are able to perform this test, include the results in the question. Streak is the colour of the powdered mineral. In many cases it is the same colour as the rock but in some it is very different from the normal surface. To perform a streak test, you need a piece of hard, ...

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If you think you have a fossil, Use this guide instead. You may not have a fossil This is always a possibility there are many chemical and physical processes that look superficially like fossils. If multiple comments tell you it is not a fossil be expected to supply the information from the other guide and retag your question. You may even find reposting ...

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