Sentence examples for be iridescent when used from inspiring English sources

The mineral is usually gray or brown to black and need not be iridescent; when used as a gem it is usually cut en cabochon (with a rounded convex surface).

They are iridescent when the constituent supercooled water droplets are all about the same size.

Be wary when using codes.

Be clear when using quotes.

Be careful when using medications.

Be careful when using lights.

Be careful when using kettle.

Be careful when using codes.

Be careful when using foil.

Be careful when using sources.

Be careful when using hooks.