Bunsenite is a mineral that is composed of nickel oxide and has a shiny black appearance. Some synonyms for this mineral include hermannite, niccolite, nickel bloom, and spear nickel. Hermannite is a mineral that is closely related to bunsenite as it is also a nickel oxide. Niccolite, on the other hand, is a nickel arsenide that also has a similar appearance to bunsenite. Nickel bloom is a term used to describe minerals that include bunsenite and hermannite. Finally, spear nickel is a term used to describe bunsenite that has a spiky or needle-like appearance. Overall, there are several synonyms for this mineral that are helpful in differentiating specific forms of bunsenite.