Definitions
There is 1 meaning of the phrase
Greenland Spar.
Greenland Spar - as a noun
A white mineral consisting of fluorides of aluminum and sodium; a source of fluorine
Synonyms (Exact Relations)
cryolite13Example Sentences
"The polarizing properties of greenland spar were discovered in the 17th century."
"The Vikings may have used greenland spar as a navigation aid."
"The double refraction of light by greenland spar is a fascinating phenomenon."
"The use of greenland spar in polarizing filters is well-known in photography."
"The crystal structure of greenland spar is rhombohedral."
