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