Thin section 55NC57, andesite (polarized) Image Read more about Thin section 55NC57, andesite (polarized)
Thin section 54NC3, pitchstone (polarized) Image Read more about Thin section 54NC3, pitchstone (polarized)
Thin section 54NC75, vitrophyre (polarized) Image Read more about Thin section 54NC75, vitrophyre (polarized)
Thin section 55NC94, vitrophyre (polarized) Image Read more about Thin section 55NC94, vitrophyre (polarized)
