Thin section 55NC118a, devitrified tuff Image Read more about Thin section 55NC118a, devitrified tuff
Thin section 55NC127, breccia (polarized) Image Read more about Thin section 55NC127, breccia (polarized)
Thin section 56NC8, rhyolite (polarized) Image Read more about Thin section 56NC8, rhyolite (polarized)
Thin section 56NC16, rhyolite (polarized) Image Read more about Thin section 56NC16, rhyolite (polarized)
Thin section 56NC93, rhyolite (polarized) Image Read more about Thin section 56NC93, rhyolite (polarized)
