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Rocks & Minerals (Hard)

Orden de Palabras:
AGATE
CALCIUM
CHLORIDE
CHROMIUM
COAL
COBALT
COPPER
FELDSPAR
FLOURIDE
GRANITE
GYPSUM
HEMATITE
IODINE
IRON
MAGNESIUM
MAGNETITE
MARBLE
OBSIDIAN
PHOSPHORUS
POTASSIUM
PUMICE
PYRITE
QUARTZ
SELENIUM
SHALE
SLATE
SODIUM
SULFUR
TALC
ZINC