It must have some very unusual properties or why should he go to all this effort?

This material exhibited unusual physical properties that had never been observed in nature.

It's got to be one of the most unusual properties ever put on the market in Cheltenham.

An unusual property situated within this very sought after area.

Mostly, the unusual property in question is a track record of success (like the successful funds).

Still this mountain doesn't have any plants due to its rocky and unusual properties.

It has unusual properties, one of which may prove useful in your situation.

These condensates are a new state of matter that have very unusual properties.

To say the least, it is an unusual property.