William Gregor (25 December 1761 – 11 June 1817) was a British clergyman and

mineralogist Mineralogy is a subject of geology specializing in the scientific study of the chemistry, crystal structure, and physical (including optical mineralogy, optical) properties of minerals and mineralized artifact (archaeology), artifacts. Specific s ...

who discovered the elemental metal

Titanium Titanium is a chemical element; it has symbol Ti and atomic number 22. Found in nature only as an oxide, it can be reduced to produce a lustrous transition metal with a silver color, low density, and high strength, resistant to corrosion in ...

Early years

He was born at the Trewarthenick Estate in

Cornwall Cornwall (; or ) is a Ceremonial counties of England, ceremonial county in South West England. It is also one of the Celtic nations and the homeland of the Cornish people. The county is bordered by the Atlantic Ocean to the north and west, ...

, the son of Francis Gregor and Mary Copley and the brother of Francis Gregor, MP for Cornwall. He was educated at

Bristol Grammar School Bristol Grammar School (BGS) is a 4–18 Mixed-sex education, mixed, Private schools in the United Kingdom, private day school in Bristol, England. It was founded in 1532 by Royal Charter for the teaching of 'good manners and literature', endowe ...

, where he became interested in

chemistry Chemistry is the scientific study of the properties and behavior of matter. It is a physical science within the natural sciences that studies the chemical elements that make up matter and chemical compound, compounds made of atoms, molecules a ...

, then after two years with a private tutor entered

St John's College, Cambridge St John's College, formally the College of St John the Evangelist in the University of Cambridge, is a Colleges of the University of Cambridge, constituent college of the University of Cambridge, founded by the House of Tudor, Tudor matriarch L ...

, graduating BA in 1784 and MA in 1787. He was ordained in the

Church of England The Church of England (C of E) is the State religion#State churches, established List of Christian denominations, Christian church in England and the Crown Dependencies. It is the mother church of the Anglicanism, Anglican Christian tradition, ...

. He became

vicar A vicar (; Latin: '' vicarius'') is a representative, deputy or substitute; anyone acting "in the person of" or agent for a superior (compare "vicarious" in the sense of "at second hand"). Linguistically, ''vicar'' is cognate with the English p ...

of St Mary's Church Diptford near Totnes,

Devon Devon ( ; historically also known as Devonshire , ) is a ceremonial county in South West England. It is bordered by the Bristol Channel to the north, Somerset and Dorset to the east, the English Channel to the south, and Cornwall to the west ...

. He married Charlotte Anne Gwatkin in 1790 and they had one daughter, Charlotte-Anne Gregor.

Discovery of titanium

After a brief interval at Bratton Clovelly, in 1793 William and his family moved permanently to the

rectory A clergy house is the residence, or former residence, of one or more priests or ministers of a given religion, serving as both a home and a base for the occupant's ministry. Residences of this type can have a variety of names, such as manse, p ...

Creed A creed, also known as a confession of faith, a symbol, or a statement of faith, is a statement of the shared beliefs of a community (often a religious community) which summarizes its core tenets. Many Christian denominations use three creeds ...

. Here he continued his remarkably accurate chemical analysis of

mineral In geology and mineralogy, a mineral or mineral species is, broadly speaking, a solid substance with a fairly well-defined chemical composition and a specific crystal structure that occurs naturally in pure form.John P. Rafferty, ed. (2011): Mi ...

s, most of which came from Cornwall, such as the zeolites found in

gabbro Gabbro ( ) is a phaneritic (coarse-grained and magnesium- and iron-rich), mafic intrusive igneous rock formed from the slow cooling magma into a holocrystalline mass deep beneath the Earth's surface. Slow-cooling, coarse-grained gabbro is ch ...

on The Lizard. He also analysed wavellite,

tourmaline Tourmaline ( ) is a crystalline silicate mineral, silicate mineral group in which boron is chemical compound, compounded with chemical element, elements such as aluminium, iron, magnesium, sodium, lithium, or potassium. This gemstone comes in a ...

, and the

uranium Uranium is a chemical element; it has chemical symbol, symbol U and atomic number 92. It is a silvery-grey metal in the actinide series of the periodic table. A uranium atom has 92 protons and 92 electrons, of which 6 are valence electrons. Ura ...

minerals

torbernite Torbernite, also known as chalcolite, is a relatively common mineral with the chemical formula Cu UO2)(PO4)sub>2(H2O)12. It is a radioactive, hydrated green copper uranyl phosphate, found in granites and other uranium-bearing deposits as a s ...

and autunite, the arsenate scorodite, the

lead Lead () is a chemical element; it has Chemical symbol, symbol Pb (from Latin ) and atomic number 82. It is a Heavy metal (elements), heavy metal that is density, denser than most common materials. Lead is Mohs scale, soft and Ductility, malleabl ...

mineral mimetite and the

nickel Nickel is a chemical element; it has symbol Ni and atomic number 28. It is a silvery-white lustrous metal with a slight golden tinge. Nickel is a hard and ductile transition metal. Pure nickel is chemically reactive, but large pieces are slo ...

mineral niccolite, and others. But he is best known for one of his earliest discoveries: in 1791, while analysing the minerals in a black sand he had discovered in the Manaccan valley, he isolated the calx of an unknown metal which he named ''manaccanite''. Later in 1791, Martin Heinrich Klaproth discovered what is now known as the

transition metal In chemistry, a transition metal (or transition element) is a chemical element in the d-block of the periodic table (groups 3 to 12), though the elements of group 12 (and less often group 3) are sometimes excluded. The lanthanide and actinid ...

titanium Titanium is a chemical element; it has symbol Ti and atomic number 22. Found in nature only as an oxide, it can be reduced to produce a lustrous transition metal with a silver color, low density, and high strength, resistant to corrosion in ...

in the mineral

rutile Rutile is an oxide mineral composed of titanium dioxide (TiO2), the most common natural form of TiO2. Rarer polymorphs of TiO2 are known, including anatase, akaogiite, and brookite. Rutile has one of the highest refractive indices at vis ...

. Believing this to be a new discovery, Klaproth named it ''titanium'' after the

Titans In Greek mythology, the Titans ( ; ) were the pre-Twelve Olympians, Olympian gods. According to the ''Theogony'' of Hesiod, they were the twelve children of the primordial parents Uranus (mythology), Uranus (Sky) and Gaia (Earth). The six male ...

Greek Mythology Greek mythology is the body of myths originally told by the Ancient Greece, ancient Greeks, and a genre of ancient Greek folklore, today absorbed alongside Roman mythology into the broader designation of classical mythology. These stories conc ...

, but eventually it was clarified that Gregor made the discovery first. Gregor was credited with the discovery, but the element kept the name chosen by Klaproth. Gregor later found titanium in

corundum Corundum is a crystalline form of aluminium oxide () typically containing traces of iron, titanium, vanadium, and chromium. It is a rock (geology), rock-forming mineral. It is a naturally transparency and translucency, transparent material, but ...

from

Tibet Tibet (; ''Böd''; ), or Greater Tibet, is a region in the western part of East Asia, covering much of the Tibetan Plateau and spanning about . It is the homeland of the Tibetan people. Also resident on the plateau are other ethnic groups s ...

, and in a

from a local tin mine.

Death and legacy

Gregor was made an honorary member of the

Geological Society of London The Geological Society of London, known commonly as the Geological Society, is a learned society based in the United Kingdom. It is the oldest national geological society in the world and the largest in Europe, with more than 12,000 Fellows. Fe ...

on its inception in 1807, and was a founding member of the Royal Geological Society of Cornwall in 1814. His friends and correspondents included John Hawkins, Philip Rashleigh and John Ayrton Paris. Never letting his scientific work interfere with his pastoral duties, he was also a distinguished landscape painter, etcher and musician. He died of

tuberculosis Tuberculosis (TB), also known colloquially as the "white death", or historically as consumption, is a contagious disease usually caused by ''Mycobacterium tuberculosis'' (MTB) bacteria. Tuberculosis generally affects the lungs, but it can al ...

on 11 June 1817 and was buried at nearby Cornelly church.

References

External links

* {{DEFAULTSORT:Gregor, William 1761 births 1817 deaths People from Tregony Geologists from Cornwall People educated at Bristol Grammar School Alumni of St John's College, Cambridge 19th-century deaths from tuberculosis Discoverers of chemical elements Mineralogists from Cornwall 18th-century English Anglican priests 18th-century English chemists 19th-century English chemists Tuberculosis deaths in England