Si stands for silicon, and O stands for oxygen so it is silicon oxygen4
The element name for garnet is aluminum silicate and its chemical formula is (Fe,Mg)3Al2(SiO4)3.
SiO4
Li(sio4)
An almandite is another name for an almandine, a variety of garnet with a deep red colour, with the chemical formula Fe3Al2(SiO4)3.
The 4 after the O means that there are 4 oxygen atoms.
The correct chemical formula for a silica tetrahedron is SiO4, representing one silicon atom bonded to four oxygen atoms in a tetrahedral shape.
The chemical composition is CA3, AI2 , (SIO4)3
Silicate radical is( SiO4) and its valency is -4
Garnet is a group of silicate minerals with the general formula X3Y2(SiO4)3, where X can be calcium, magnesium, ferrous iron, or manganese, and Y can be aluminum, ferric iron, or chromium. This composition gives different garnet species their unique colors and properties.
Silicate minerals typically contain the silicon-oxygen (SiO4) tetrahedron as their fundamental building unit. So, if a chemical formula contains SiO4 groups, it is likely a silicate mineral. Additionally, the presence of other cations such as aluminum, magnesium, or iron combined with SiO4 can also indicate a silicate mineral.
Trace amounts of other minerals in the crystalline structure of the SiO4.
Zoisite is a mineral with orthorhombic crystals, chemical formula Ca2Al3(SiO4)(Si2O7)O(OH).