Magnetite is classified as an oxide.
Chalcopyrite belongs to the sulfide group of minerals.
Magnetite belongs to the spinel group of minerals
it belongs to the metal group
Emerald belongs to the beryl mineral group, which is a type of ring silicate mineral. Other minerals in this group include aquamarine, morganite, and heliodor, all of which have different colors due to impurities.
Silicates
Chalcopyrite belongs to the sulfide group of minerals.
Magnetite belongs to the spinel group of minerals
it belongs to the metal group
Magnetite, a spinel-group iron oxide.
Ruby belongs to the mineral group Corundum
Emerald belongs to the beryl mineral group, which is a type of ring silicate mineral. Other minerals in this group include aquamarine, morganite, and heliodor, all of which have different colors due to impurities.
Mica is actually a term for a group of sheet silicate minerals as such if you describe something as a mica you are not defining (or identifying) exactly what it is, only the group that it belongs to.
Barite, or Baryte, is a barium sulfate. Mindat.org contains a wealth of information on minerals.
Silicates
it belongs to Salfates
Silicates are the most common mineral group.
Galena is in the sulfide group of minerals.