* Calcite (CaCO3): This is the most common cementing mineral, formed from the precipitation of calcium carbonate from groundwater. It gives the rock a characteristic white or light grey color.
* Quartz (SiO2): This is the second most common cementing mineral, formed from the precipitation of silica from groundwater. It often gives the rock a milky white or glassy appearance.
Other minerals can also act as cement, including:
* Dolomite (CaMg(CO3)2)
* Siderite (FeCO3)
* Hematite (Fe2O3)
* Goethite (FeO(OH))
The type of cement present in a sedimentary rock can be determined by examining its composition and properties.
