I've been doing some olivine research with Mount Okmok this last semester. Here are some photos of some thin sections.

Mostly plagioclase and oxides in a sperulitic/variolitic ground mass. Below are the PPL, XPL, and XPL with accessory/gypsum plate inserted.

Hello, I'm Matt. I'm an undergrad at Montana State and I'm studying geology. I'm currently working on a project where I collect data on thin sections. In my spare time, I plan on posting them here! Some posts will just be thin sections and others will have analyses. It's nice to finally have access!