I want to start a sentence with "This kind of particles" but I'm not sure whether this expression is correct.
There is only one kind (silicate) of particles that I'm talking about, but there are several options of particles (halloysite, hectorite, montmorillonite,...). So I'm not 100% sure where to put the plural.
A similar example would be: This kind (fruit juice) of juices (apple, orange, cherry,)...
Hope you can help me, thanks a lot to all