Staurolite porphyroblasts in a Proterozoic metapelite.
PhotoID757
Staurolite porphyroblasts in a Proterozoic metapelite.
PhotoID757
Photograph: Ben Murphy
Staurolite porphyroblasts in a Proterozoic metapelite.
PhotoID757
Staurolite porphyroblasts in a Proterozoic metapelite.
PhotoID757
Photograph: Ben Murphy