Look at Craigslist in your area and see if your property shows up for sale. Keep an eye on second hand and pawn shops too.
All properties are useful there is no one property that is "least useful".
Hull identification numbers are useful for locating your boat if it is stolen.
Recycling.
Hull identification numbers are useful for locating your boat if it is stolen.
white blood cells
locating your boat if it is stolen
Locating your boat if stolen
Not very
Density is the least useful property for identification because different specimens of the same type of mineral can vary in size. -Color is the least useful property for identification because it is the most obvious property.
that is what the scientists use to experiment
If it is a guard dog it guards property, that is useful.
The least effective property used to identify most minerals would be the color. The color of a mineral can be altered by impurities.