Index: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Home > Vivianite
Vivianite Fe3(PO4)2-8(H2O), hydrated iron phosphate, is a secondary mineral found in a number of geological environments. Usually found as deep blue to deep bluish green prismatic to flattened crystals, most crystals rather small to microscopic, larger ones are rare.It is formed by the alteration of ore deposits near the surface, or of primary phosphates in pegmatites. Vivianite crystals are often found inside fossil shells, such as those of bivalves and gastropods, or attached to fossil bone.
Vivianite darkens upon exposure to light, and was named in 1817 after J.G. Vivian , an English mineralogist who first discovered crystals of the mineral in Cornwall.
Notable localities are Russia, Ukraine, England, and Maryland and Colorado in the United States.
See also
- List of mineralsThis page is intended as a list of all minerals. Sorted by name: External Links A Abelsonite Abenakiite-(Ce) Abichite (not a valid species) Actinolite Agate (not a valid species variety of quartz) Alabaster (not a valid species variety of gypsum or calcit
Minerals
Phosphate minerals
Read more »