Thin section S56NC5b, crystal vitric tuff, recrystallized Image Read more about Thin section S56NC5b, crystal vitric tuff, recrystallized
Thin section 56NC94, hard rhyolite (polarized) Image Read more about Thin section 56NC94, hard rhyolite (polarized)
Thin section 55NC53, welded tuff (polarized) Image Read more about Thin section 55NC53, welded tuff (polarized)
Thin section 56NC14, brecciated tuff (polarized) Image Read more about Thin section 56NC14, brecciated tuff (polarized)
Thin section 56NC96, earthy argillized rhyolite (polarized) Image Read more about Thin section 56NC96, earthy argillized rhyolite (polarized)
Thin section 56NC96, earthy argillized rhyolite Image Read more about Thin section 56NC96, earthy argillized rhyolite
