Thin section 56NC48C, black vitrophyric welded tuff Image Read more about Thin section 56NC48C, black vitrophyric welded tuff
Thin section 56NC57, partly silicified hb biot. dacite tuff (polarized) Image Read more about Thin section 56NC57, partly silicified hb biot. dacite tuff (polarized)
Thin section 56NC57, partly silicified hb biot. dacite tuff Image Read more about Thin section 56NC57, partly silicified hb biot. dacite tuff
Thin section 55NC118a, devitrified tuff (polarized) Image Read more about Thin section 55NC118a, devitrified tuff (polarized)
Thin section 56NC58A, granite (polarized) Image Read more about Thin section 56NC58A, granite (polarized)
