Clots of white cloud bloomed as whirlwind vortices sucked frozen ammonia crystals up from the hidden depths.

The planet exhibits a pale yellow hue due to ammonia crystals in its upper atmosphere.

Hydrogen gas swirled thinly in its center, and thick methane weighted with ammonia crystals rushed around the rim.

Finally, they crossed through a thin cirrus veil of ammonia crystals that whipped past the viewports.

Sometimes, when storms raged through the mountains, the view disappeared for hours behind clouds of ammonia crystals.

It gets its bluish surface colour from tiny frozen ammonia crystals.

The clouds are composed of ammonia crystals and possibly ammonium hydrosulfide.

Whipped by the hurricane, a continuous rain of ammonia crystals beat against the high-tension defence screens of the ship.

For a moment, Ortger found an anchorage behind a drifting dune of coagulated ammonia crystals.

Jupiter is perpetually covered with clouds composed of ammonia crystals and possibly ammonium hydrosulfide.