The Silmarillion: Ch 7: Of the Silmarils and the Unrest of the Noldor

[Earniel]

Originally posted by Artanis
I don't know Eärniel, Fingolfin was keen on being second to the title High King of the Ñoldor. Fingolfin and Fëanor were not only half-brothers, they were also rivals. Not that it is any excuse for Fëanor.

Quite possible. I just never thought about it that way while reading the Silmarillion. Didn't notice that motive.