GC-112T Quartzite
GC-117S Quartzite
GC-014B Yellow Slate
GC-014G Yellow slate
GC-1010309 Quartzite
GC-020 Rusty slate
GC-118T Quartzite
GC-119S Quartzite
GC-101103-10 Quartzite
GC-018 Black slate
GC-119T Quartzite
GC-121S Quartzite
GC-102-12CL Quartzite
GC-201T Sand slate
GC-201S Sand slate
GC-105-10CL Quartzite
GC-206T Sand slate
GC-206S Sand slate
GC-014-10 Slate
GC-301T Marble
GC-302S Marble
GC-305 Marble
GC-10103-10MIX Quartzite
GC-407 Limestone