It occurs as opaque, yellowish to silvery microscopic isometric crystals.

It has been found only as microscopic grey crystals associated with other selenides.

Instead of dissipating, the water freezes into microscopic crystals that are suspended in the air, forming fog.

It's microscopic crystals of ice, suspended at high altitudes in the atmosphere.

The mineral occurs as microscopic crystals, the largest found is 6 by 20 micrometres.

It is a tiny crystal, more than microscopic.

It seems placid and stable, but in a single microscopic crystal produces disequilibrium.

If the leaf is chewed, microscopic crystals of calcium oxalate are released and penetrate the mouth.

They operate using light instead of electricity, and use microscopic crystals to form logic circuits for the light to pass through.

Then we'll go over every square inch of floor with a blowtorch, in case there are any microscopic crystals.