What's the plural form of chyrstal? Here's the word you're looking for.
Answer
The noun chyrstal can be countable or uncountable.
In more general, commonly used, contexts, the plural form will also be chyrstal.
However, in more specific contexts, the plural form can also be chyrstals e.g. in reference to various types of chyrstals
or a collection of chyrstals.