No, I do not have a microscope "app" on my phone. These are pictures of rock thin-sections taken with the aid of my phone. (A thin-section is a piece of rock that has been attached to a glass slide and then ground down to 30 microns.) I have to look at these slides each week and learn to identify the constituent minerals that form the rock. I know how excited you must be just thinking about it. After staring down a microscope for hours on end, I then "get" to draw a picture. My drawings are on sale for a reasonable fee. Hopefully I can get a showing at a local gallery to help subsidize my education.
This is a sandstone. Notice the quartz, plagioclase, and volcanic lithic fragments.
Behold, an extrusive volcanic rock, better known as a clinopyroxene, olivine basalt. This can be found far off the coast of Alaska. The large, colorful easter eggs are olivine.
Plagioclase, quartz, biotite. (biotite rhymes with "dyn-o-mite")
Artist rendering of slide 2. Start the bidding at $1.
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