gloomywormwood:My petrography course is over.
gloomywormwood:My petrography course is over. -- source link
Tumblr Blog : gloomywormwood.tumblr.com
#petrology#mineral#mineralogy#thin section#thinsectionthursday#geology#studyblr
#petrology#mineral#mineralogy#thin section#thinsectionthursday#geology#studyblr