Strengite from Sapucaia mine, Galileia, Doce valley, Minas Gerais, Brazil.
What is Strengite used for?
Strengite refers to a naturally occurring mineral with the chemical formula FePO4·2H2O that is structurally in an orthorhombic-dipyramidal form that contains hydrogen, iron, oxygen and phosphorus. Strengite is used as a constituent of corrosion resistance materials such as phosphate coatings.
Where is Vivianite found?
Vivianite crystals are often found inside fossil shells, such as those of bivalves and gastropods, or attached to fossil bone.
