Where does this definition of Iceland spar come from?
This entry for Iceland spar is sourced from Main Dictionary, one of the dictionaries and corpora merged into Lughet.
Is Iceland spar a noun, verb, or something else?
In this entry, Iceland spar is tagged as 2n..
What is Lughet?
Lughet is a free trilingual dictionary covering nearly five million entries across Uyghur, Chinese, and English, drawn from more than ten source dictionaries and corpora.