In there is the powdered rock mixed with water to a smooth flowing paste.

The area was showered with powdered rock and dust.

Ursula's eyes widened and she stepped back, losing her balance and falling onto the soft powdered rock that covered the rim of the crater.

Almost any kind of mass would do, and powdered rock in water--a slurry--was a very good reaction mass.

Poorly aimed, the beam came nowhere close to the stalking creature, but powdered rock spewed from the outcropping below the gaze hound.

High mounds of crushed and powdered rock, great cones of earth fire-blasted and poison-stained, stood like an obscene graveyard in endless rows, slowly revealed in the reluctant light.

CheMin will identify the minerals in samples of powdered rock or soil that the rover's robotic arm will deliver to an input funnel.

Similar crystals, but of microscopic size, are widely distributed in sedimentary rocks, such as sandstones, clays, and slates, from which they may be separated by washing away the lighter constituents of the powdered rock.

The mare was dust, though, not water as Galileo had surmised, powdered rock and glass and asteroid scum.

Beyond them reared the white mine dump; some mineral in the powdered rock had leaked out in long yellow stains down its sides.