Today’s Kickin’ it Old Skool Blog-a-thon we’re challenged to do a little show-and-tell, a’la kindergarten.
I wasn’t sure what to post about, then I remembered that I need to write a (separate) blog post about Bowen’s Reaction Series, which is a geology thing that explains which minerals will be found together in igneous rocks. I’ll write the post later.
But what it means is that I need to take some pictures of minerals…
So, let me show you pictures of the most common minerals on Earth! If you know these few minerals, you’ll know a lot about petrology (the study of rocks and their components).
The next four minerals are all members of the plagioclase group of minerals. They differ slightly in chemical composition, which makes them different colors. They are all similar in that they have striations – little thin parallel lines – on their crystal faces. See if you can see them.
Now, go out there and look at rocks. Especially nicely polished rocks like granite table tops. See if you can identify any of these minerals (and stay tuned for the upcoming post explaining Bowen’s Reaction Series).