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RUOBSIDIANMB PWNMHULEHCVO HXRRAMAQFDXS LSWMLGRANITE QILAEMRVCHGK VDMAPUMICEGG DSHETQXZRPUN DIPHSEMYXANE BASALTCHALKI VEURHYOLITES MARBLEBNSJFS SANDSTONELTW
1.
Granite
2.
Basalt
3.
Limestone
4.
Marble
5.
Sandstone
6.
Shale
7.
Slate
8.
Chalk
9.
Obsidian
10.
Pumice
11.
Gneiss
12.
Rhyolite