GC-101T Quartzite
GC-109T Quartzite
GC-014T A Slate
GC-014T Slate
GC-103T Quartzite
GC-103BT Quartzite
GC-018T Slate
GC-020T Slate
GC-105T Quartzite
GC-102T Quartzite
GC-106T Quartzite
GC-108T Quartzite
GC-020BT Rusty slate
GC-020YT Rusty slate
GC-112T Quartzite
GC-118T Quartzite
GC-119T Quartzite
GC-201T Sand slate
GC-206T Sand slate
GC-301T Marble
GC-302T Marble
GC-404T Volcanic rock
GC-406T Volcanic rock
GC-106BT Quartzite