Yes they are formula: S2-
Al2S3
The chemical formula of copper matte is typically not fixed and can vary depending on the specific composition of the mixture. In general, copper matte is a combination of copper sulfides and other metal sulfides that result from the smelting of copper ores.
Pyrite belongs to the sulfide mineral group. It is composed of iron and sulfur, with a chemical formula FeS2.
True, if they are not sulfates or sulfides of Silicone.
Sulfur is the element present in all sulfides and sulfates.
The chemical formulas of copper sulfides are CuS and Cu2S. Copper sulfides are non-stoichiometric compounds. Anhydrous meaning is without water. Copper sulfides hasn't hydrates.
(Zn,Fe)S ; (Zn,Fe,Mg,Mn,Cd,In,Ga)S Source: http://www.minerals.net/mineral/sulfides/sphaleri/sphaleri.htm
Oxygen
Sulfides
Yes, sulfates and sulfides are types of nonsilicate minerals. Sulfates have a sulfate ion (SO4^2-) and commonly include minerals like gypsum, while sulfides have a sulfide ion (S^2-) and include minerals like pyrite. They are important mineral groups in geology.
When iron and sulfur are combined, they form iron sulfide. Iron sulfide is a compound with the chemical formula FeS and it is a solid black powder.
Sulfur.