Crystalline waters flowing down the side of the valley were as clear as a transparent stone.

Wading out into the crystalline ocean, the swimmer could see straight down to the bottom of the sea.

See-through and crystalline gemstones were used to decorate the glasses vases on the event tables.

The crystalline material of the glass boat allowed those inside to see the fish swimming underneath.

A sheet of crystalline ice caused the woman to slip and fall since she did not see it on the roadway.