What's the plural form of gritstone? Here's the word you're looking for.
Answer
The noun gritstone can be countable or uncountable.
In more general, commonly used, contexts, the plural form will also be gritstone.
However, in more specific contexts, the plural form can also be gritstones e.g. in reference to various types of gritstones
or a collection of gritstones.
Examples
The path leads straight to the sombre gritstone memorial on the edge of the moorland spur.
There is a condition restricting the output of gritstone from the Old Hutton quarry each day to 400 tonnes.
One or two gritstone quarries provide important nesting sites for peregrines and ravens.
The War Memorial Obelisk stands about 20 foot high on an outcrop of gritstone and is brilliantly situated.
What we didn't expect was to find the thing perched on a weather-sculpted and bus-sized block of gritstone.
Work has involved replacing the original limestone steps with gritstone that will be less slippery.
