Rating | Solver | Clue |
---|---|---|
SHALE | Soft rock | |
TALCUM | Soft rock | |
SANDSTONE | Soft rock | |
WACKY | A soft, earthy, dark-colored rock or clay derived from the alteration of basalt. | |
MOLASSE | A soft Tertiary sandstone; -- applied to a rock occurring in Switzerland. See Chart of Geology. | |
SAPONITE | A hydrous silicate of magnesia and alumina. It occurs in soft, soapy, amorphous masses, filling veins in serpentine and cavities in trap rock. |