The phrase "a crack between" is correct and usable in written English.
It can be used to describe a small opening or gap that exists between two objects or surfaces.
Example: "There was a crack between the two walls that allowed light to seep through."
Alternatives: "a gap between" or "a fissure between".
Then he pressed his face to a crack between the boards and said, "I can see you! You're not doing anything.
His wrist shot from just inside the blue line went under the stick of Devils defenseman Mike Mottau and sailed through a crack between the blocker and pants of Devils goaltender Martin Brodeur.
Standing with the chief rabbi of the wall, Mr. Romney, in a black velvety skullcap, was handed Psalm 121 — "He who watches over Israel will neither slumber nor sleep" — and later inserted a note into a crack between the stones, as is traditional (campaign aides declined to reveal its contents).
First Hillary and then Tenzing tackled the barrier much as one would climb a rock chimney i.e., they inched up a little at a time with their backs against the rock wall and their feet wedged in a crack between the rock and ice.
Standing with the chief rabbi of the wall, Mr. Romney, in a black velvety yarmulke, was handed Psalm 121 — "He who watches over Israel will neither slumber nor sleep" — and later inserted a prayer note into a crack between the stones, as is traditional (campaign aides declined to reveal its contents).
Migrating is like moving from one house to another and bringing everything, including all the dust bunnies, the bent paper clip that fell in a crack between the floorboards, and the subscription blow-ins that didn't make it into the recycling bin.
We can have [the portion where] God creates Adam and have a crack [between the fingers].
Employing the skills he had learned in the New Zealand Alps, Hillary jammed his feet, hands and shoulders into a thin crack between a ridge of ice and the rock and, as he put it, "levered myself" up the wall.
In this paper, the behavior of an interface crack between a piezoelectric actuator and an elastic substrate considering shear effect is studied.
"He had a blunt nose, probably broken once or twice," she notices at their first meeting, "and a mouth that didn't close completely, with a small crack between the lips that made it seem as if they were on permanent standby, ready to eat or kiss or answer a question".
This may cause the bifurcation of the crack, which now appears propagating as a delamination crack between the two plies.
