Vivianite is a rare mineral named after its discoverer, J.G. Vivian. It has the chemical formula Fe2+3(PO4)2•8H2O and is found in iron-bearing phosphate deposits. The word "vivianite" is spelled phonetically as /vɪˈvɪənaɪt/. The "vi" is pronounced as "vy" (similar to "vine") and the "a" sounds like the "a" in "cat". The stress is on the second syllable, "VI-vi-a-nite". Vivianite is known for its blue-green color and is used as a pigment in paintings.
Vivianite is a mineral that is classified as a hydrated iron phosphate. It is typically found in iron-rich environments such as iron ore deposits and bog soils. The mineral is named after the British mineralogist, John Henry Vivian, who studied minerals and made significant contributions to the field.
Vivianite is characterized by its vibrant blue to green-blue color and crystal formation. It is often translucent, with a vitreous or subadamantine luster. It can occur in various crystal habits, including prismatic or bladed crystals, fibrous aggregates, or earthy masses. The mineral has a Mohs hardness of around 1.5 to 2, making it relatively soft and easily scratched.
Chemically, vivianite consists of iron (II) phosphate and is chemically represented as Fe3(PO4)2·8H2O. It forms when iron-rich sediment comes into contact with phosphate-rich solutions or gases, usually in low-oxygen environments. Vivianite is known for its instability, as it can readily oxidize and convert into other iron minerals, losing its vibrant blue color in the process.
Vivianite has various applications and uses. In the field of paleontology, it is often found as a fossil replacement mineral, preserving ancient bones, teeth, and shells. It also has potential uses in industry, ranging from pigments in dyes to its chemical properties in applications such as wastewater treatment.
Overall, vivianite is a visually striking mineral with unique chemical properties, contributing to its significance in various scientific disciplines and industrial applications.
A mineral occurring in pale blue crystals, composed chiefly of ferrous phosphate.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
A mineralogical term for phosphate of iron, usually of a fine indigo blue, sometimes used as a pigment.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
The word "vivianite" comes from the Latin word "vivianus", which means "lively" or "full of life". The suffix "-ite" is commonly used in mineralogy to denote a mineral or rock. The term "vivianite" was coined in the early 19th century by German mineralogist Abraham Gottlob Werner. It was named so due to the vibrant blue or green color that the mineral exhibits, giving it a lively appearance.