Hydrotalcite is a mineral compound that is typically found in magnesium-aluminum layered double hydroxides. Some possible synonyms for hydrotalcite include aluminum magnesium carbonate hydroxide, aluminum magnesium hydroxide carbonate, and magnesium aluminum carbonate hydroxide. Other potential synonyms might include mixed metal hydroxide, layered double hydroxide, or anionic clay. These terms are often used interchangeably to describe minerals that share similar chemical structures and properties to hydrotalcite. Regardless of what synonym is used, this mineral compound has many important applications in industries such as pharmaceuticals, cosmetics, and environmental remediation.