かがやき蒼鉛 そうえん こうじゃなかったです
kagayakisō enkōjanakattadesu

Noun
Desu Copula

The polite, past negative form of 輝蒼鉛鉱

1. Wasn't shining blue lead ore.; Wasn't a bright blue lead ore.

Past/Perfective
Negative
Polite
Casual Register
Geology