We've been tweeting Virtual Microscope images on Thursdays for a while now with the hashtag #ThinSectionThursday, and linking to the locations within individual thin sections using the share function in the VMfES. We never set up a twitter address so its from @SimonPKelley. There's a bit of a basalt theme to recent tweets and this Thursday is no exception except that its an extra-terrestrial basalt.
Here's the tweet;
"Its basalt Jim but not as we know it! 4550 Ma angrite D'Orbigny
for #ThinSectionThursday http://tinyurl.com/pe8j2yh"