writetyperr:i thought it would be important to post something on tuumblr at least once a year so her

writetyperr:

i thought it would be important to post something on tuumblr at least once a year so here’s some cool rocks in thin section from petrology class. komatiites at 50x magnification, which are rare because they only formed when the earth’s mantle was hot enough near it’s formation 4b years ago oy oy