slate: Quick Facts

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$Slate, a metamorphic rock, showing typical splintery fracture and thin layering (slightly larger than life-size).$

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spotted slate metamorphic rock gneiss schist phyllite amphibolite marble metamorphism foliation eclogite charnockite cataclastite

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metamorphic rock: Slate

Basalt sample returned by Apollo 15, from near a long sinous lunar valley called Hadley Rille. Measured at 3.3 years old.

(Bed) Rocks and (Flint) Stones