Thin section 56NC63-a, rhyolite tuff (polarized) Image Read more about Thin section 56NC63-a, rhyolite tuff (polarized)
Thin section 55NC34, zeolitized tuff (polarized) Image Read more about Thin section 55NC34, zeolitized tuff (polarized)
Thin section 55NC83a, nontronite (polarized) Image Read more about Thin section 55NC83a, nontronite (polarized)
Thin section 56NC337a, rhyolite (polarized) Image Read more about Thin section 56NC337a, rhyolite (polarized)
Thin section 56NC48C, black vitrophyric welded tuff (polarized) Image Read more about Thin section 56NC48C, black vitrophyric welded tuff (polarized)
