りゅう塩鉱 えんこう ものじゃありませんでした
ryūenkōmonojārimasendeshita

Noun
Desu Copula

The polite, past negative form of 硫塩鉱物

1. Was not a sulfide mineral.; Was not a sulfur salt mineral.

Past/Perfective
Negative
Polite
Terminal Form
Geology