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Back from an amazing time in the field with Dr. Alissa Kotowski and her group.

I normally think of serpentinite as the weak phase in almost any faulting scenario. Here is a calc-mylonite chock full of serpentinite which behaved seemingly brittley, while the calcite has gone about squeezing & flowing around it (+ new calcite precipitating around it?). Wild!

For #ThinSectionThursday Physics meets Geology! You can use the polarised light coming from your laptop screen, in combination with a linear polariser, to view thin sections in polarised light! Using one half of the Viewing the Rock World slide viewer: matthewtarling.github.io/outreach/

Putting together another *Viewing the Rock World* thin section viewer for EPS outreach work. All the information you need to build one of these yourself is available here: matthewtarling.github.io/outreach/

A 3D-printable polarised thin section viewer that anyone can make for <5$, part of the *Viewing the Rock World* outreach project. All the information you need to take part or build it right here: matthewtarling.github.io/outreach/

#MineralMonday This tremolite talc rock formed through metasomatism of serpentinite, a process that involves mineral reactions, including the replacement and growth of new minerals, facilitated by fluids. Livingstone Fault, New Zealand. Field of View ~20cm.

#ThinSectionThursday Rocks capture epic earth-shattering tales: the formation of our planet, the motion of tectonic plates, molten rock erupting at the surface of the Earth. *Viewing the Rock World* is one way you can share these stories with the public: matthewtarling.github.io/outreach/

Getting the *Viewing the Rock World* Thin Section Viewer ready to go into the field with a custom protective case! I'll post the 3D printing files on my website shortly if anyone making the viewer wants to print one: matthewtarling.github.io

Is #geotwitter still a thing these days? It's been a while. I am looking for help with graphite Raman thermometry. Does it apply to carbon precipitated from a fluid? I didn't think so, but I've seen a few papers applying it in that way. It would be super handy if that's the case!

Good to be back visiting a bunch of the junior classes at Siena College. As always we chatted all things volcanoes and diamonds 🌋💎Super impressed at the spicy questions the girls threw at me! I also tested out 3D printed slide viewers designed by Matthew Tarling - loved it!

I don't check twitter much these days... Super pumped to see the 3D printed slide viewer in action!!!!!

These are beautiful! Love the colours!! How did the activity go?