It would be a high-magnesium tholeitic basalt or picrite. A basaltic lava containing the same minerals as norite but fine-grained i.e. hypertsthene, olivine, calcic plagioclase feldspar. Such basalts can be found on Earth and on the Moon.

Nephrite is a gemstone. It begins with the letter n.

You could say 'ryuu no norite,' written: 龍の乗り手

Nelsonite is a special type of intrusive igneous rocks, comprising of ilmenite and apatite. They are reported essentially from within norite-gabbro-anorthosite suites.

Neverland Natural Arch, narrow, or neck (google the definitions)