Here's why:
* Sulfate Ion (SO₄²⁻): The fundamental building block of sulfates is the sulfate ion. This ion consists of a central sulfur atom bonded to four oxygen atoms, arranged in a tetrahedral shape.
* Mineral Formation: These sulfate ions bond with various metal cations to form different sulfate minerals. The specific metal ion determines the mineral's name and properties.
Examples of Sulfate Minerals:
* Gypsum (CaSO₄·2H₂O): A common sulfate mineral used in drywall and plaster.
* Anhydrite (CaSO₄): A dehydrated form of gypsum.
* Barite (BaSO₄): Used in drilling mud and as a pigment.
* Celestine (SrSO₄): A source of strontium.
* Anglesite (PbSO₄): A lead sulfate mineral.
Let me know if you would like to learn more about specific sulfate minerals!