Aluminum Silicates

**Definition:** Any of the numerous types of clay which contain varying proportions of Al2O3 and SiO2. They are made synthetically by heating aluminum fluoride at 1000-2000 degrees C with silica and water vapor. (From Hawley's Condensed Chemical Dictionary, 11th ed)

**Tree numbers:** - D01.056.050.075 - D01.578.725.025 - D01.650.550.050.075 - D01.837.725.700.760.050

**Synonyms:** - Aluminum Silicate