It's a blend of Victorian music and industrial music. The term was coined by Emilie Autumn.
Most fans classify it as 'Victoriandustrial', but it could also be classified as Classical / Gothic.
No, she is classed as victoriandustrial. However some people regard her as emo because of how emotional her music is.
Her fashion is mostly influenced from the Victorian Era (corset, stockings, etc.) and her music is labeled as 'Victoriandustrial' She uses a lot of references to Shakespeare in her songs, songs from Opheliac refer mostly to Hamlet.
Emilie Autumn, renowned electric violinist and victoriandustrial artist, is represented by The End Records. The End Records, founded in 1998, is a Brooklyn-based record company that specializes in heavy, dark, and artistic works. Other prominent names they represent are Tarja Turunen, Mindless Self Indulgence, Helloween, and Danzig. She also made her own record label called Traitor Records, but I'm not sure when.