* Magnesium oxide (MgO): A white, powdery solid that is used in the production of cement, fertilizers, and glass. It is also used as an antacid and a laxative.

* Magnesium hydroxide (Mg(OH)2): A white, gelatinous solid that is used as an antacid and a laxative. It is also used in the production of fire-resistant materials.

Carbonates

* Magnesium carbonate (MgCO3): A white, solid that is used in the production of paper, paints, and rubber. It is also used as an antacid and a laxative.

* Magnesium bicarbonate (Mg(HCO3)2): A white, crystalline solid that is used as an antacid and a laxative. It is also used in the production of sparkling water and soft drinks.

Sulfates

* Magnesium sulfate (MgSO4): A white, crystalline solid that is used as a fertilizer, a drying agent, and an Epsom salt. It is also used in the production of paper and textiles.

* Magnesium bisulfate (Mg(HSO4)2): A white, crystalline solid that is used as a fertilizer and a flux in the production of glass and ceramics.

Chlorides

* Magnesium chloride (MgCl2): A white, crystalline solid that is used as a fertilizer, a de-icing agent, and a food additive. It is also used in the production of magnesium metal and in the production of brine for oil and gas wells.

* Magnesium hydrochloride (Mg(HCl)2): A white, crystalline solid that is used as a flux in the production of glass and ceramics.

Nitrates

* Magnesium nitrate (Mg(NO3)2): A white, crystalline solid that is used as a fertilizer and as an oxidizing agent in the production of explosives. It is also used in the production of magnesium metal and in the production of fireworks.

Phosphates

* Magnesium phosphate (Mg3(PO4)2): A white, crystalline solid that is used as a fertilizer and as a food additive. It is also used in the production of fire-resistant materials.