Piemontite and Hematite Chemical Formula
While comparing Piemontite and Hematite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Piemontite and Hematite chemical formula.
>- Chemical formula of Hematite- Fe 2O 3Arthur Thomas , Gemstones (2009)