The story
For its composition, a mineral related to lamprophyllite with a dominance of sodium and barium (chemical symbols Na and Ba).
Etymology from Wiktionary, CC BY-SA 4.0.
nabalamprophyllite
Today it means: A monoclinic-prismatic mineral containing aluminum, barium, calcium, fluorine, hydrogen, iron, magnesium, manganese, oxygen, potassium, silicon, sodium, strontium, and titanium. Full definition →