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Goethite, named after the German polymath Johann Wolfgang von Goethe, is an iron bearing oxide mineral found in soil and other low temperature environments. Goethite has been well known since prehistoric times for its use as a pigment. Evidence has been found of its use in paint pigment samples taken from the caves of Lascaux in France. It was first described in 1806 for occurrences in the Mesabi iron ore district of Minnesota. Image File history File linksMetadata Download high resolution version (2149x1612, 1038 KB) Summary Goethite- Hydrated iron oxide Size: 6X8 cm Origin:Brazil Author:Eurico Zimbres Free for all use Licensing File links The following pages on the English Wikipedia link to this file (pages on other projects are not listed...
Minerals are natural compounds formed through geological processes. ...
A chemical formula (also called molecular formula) is a concise way of expressing information about the atoms that constitute a particular chemical compound. ...
General Name, Symbol, Number iron, Fe, 26 Chemical series transition metals Group, Period, Block 8, 4, d Appearance lustrous metallic with a grayish tinge Atomic mass 55. ...
Iron(III) oxide-hydroxide (FeO(OH)), also called hydrated iron oxide and yellow iron oxide, is an oxide-hydroxide of iron. ...
In mineralogy and crystallography, a crystal structure is a unique arrangement of atoms in a crystal. ...
In crystallography, the orthorhombic crystal system is one of the 7 lattice point groups. ...
Cleavage, in mineralogy, is the tendency of crystalline materials to split along definite planes, creating smooth surfaces, of which there are several named types: Basal cleavage: cleavage parallel to the base of a crystal, or to the plane of the lateral axes. ...
For fractures in geologic formations, see Rock fracture. ...
Mohs scale of mineral hardness characterizes the scratch resistance of various minerals through the ability of a harder material to scratch a softer. ...
Lustre (American English: luster) is a description of the way light interacts with the surface of a crystal, rock or mineral. ...
The refractive index (or index of refraction) of a material is the factor by which the phase velocity of electromagnetic radiation is slowed in that material, relative to its velocity in a vacuum. ...
Minerals are natural compounds formed through geological processes. ...
Relative density (also known as specific gravity) is a measure of the density of a material. ...
Fusibility is the ease with which a material will melt. ...
Leonardo da Vinci is seen as an epitome of the Renaissance man or polymath A polymath (Greek polymathēs, πολυμαθής, meaning knowing, understanding, or having learnt in quantity, compounded from πολυ- much, many, and the root μαθ-, meaning learning, understanding[1]) is a person well educated in a wide variety of subjects or...
Johann Wolfgang von Goethe. ...
For animal and plant pigments, see Pigment, biology. ...
Lascaux is a complex of caves in southwestern France famous for its cave paintings. ...
The Mesabi Iron Range is a vast deposit of iron ore and the largest of four major iron ranges in the region collectively known as the Iron Range of Minnesota. ...
Capital Saint Paul Largest city Minneapolis Area Ranked 12th - Total 87,014 sq mi (225,365 km²) - Width 250 miles (400 km) - Length 400 miles (645 km) - % water 8. ...
It is an iron oxide-hydroxide with a chemical formula FeOOH. Its hardness ranges from 5.0 to 5.5 on the Mohs Scale, and its specific gravity varies from 3.3 to 4.3. It forms prismatic needle-like crystals, but is more typically massive. Its main modern use is as an iron ore, being referred to as brown iron ore. It does have some use as a clay earth pigment. Iron oxide pigment There are a number of iron oxides: Iron oxides Iron(II) oxide or ferrous oxide (FeO) The black-coloured powder in particular can cause explosions as it readily ignites. ...
Hydroxide is a polyatomic ion consisting of oxygen and hydrogen: OH− It has a charge of −1. ...
Mohs scale of mineral hardness characterizes the scratch resistance of various minerals through the ability of a harder material to scratch a softer material. ...
Relative density (also known as specific gravity) is a measure of the density of a material. ...
Quartz crystal Copper(II) sulfate and iodine crystal Synthetic bismuth crystal Insulin crystals Gallium, a metal that easily forms large single crystals A huge monocrystal of potassium dihydrogen phosphate grown from solution by Saint-Gobain for the megajoule laser of CEA. In chemistry and mineralogy, a crystal is a solid...
This heap of iron ore pellets will be used in steel production. ...
Clay earth pigments are naturally occurring minerals that have been used since prehistoric times as pigments. ...
Goethite often forms through the weathering of other iron-rich minerals, and thus is a common component of soils. It may also be precipitated by groundwater or in other sedimentary conditions, or form as a primary mineral in hydrothermal deposits. Goethite is found all over the planet, usually in the form of concretions, stalactitic formations, oolites (a form consisting of tiny round grains cemented together), reniform (kidney shapes) or botryoidal (globular, like bunches of grapes) accumulations. It is frequently encountered in the swampy areas at the head of spring waters, on cave floors, and on the bottom of lakes and small creeks. The boxworks or gossan resulting from the oxidation of sulfide ore deposites is formed of goethite along with other iron oxides and quartz. Iron rich lateritic soils developed over serpentinite rocks in tropical climates are mined for their iron content as well as other metals. Weathering is the process of breaking down rocks, soils and their minerals through direct, or indirect contact with the atmosphere. ...
SOiL is a five-piece hard rock music group from Chicago, Illinois. ...
SHARAF HAS ISSUES!!!!!!!!!!!!!!!!!!!!!!!!!!! // An aquifer is a subterranean geologic unit (or layer) of permeable material (like sand and gravel) that is capable of providing usable quantities of water to a well. ...
Hydrothermal circulation in the oceans is the passage of the water through mid-ocean Ridge (MOR) systems. ...
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Water droplet coming out of the central canal of a stalactite A stalactite (Greek stalaktos, (Σταλακτίτης), dripping or dropped), or dripstone, is a type of speleothem that hangs from the ceiling or wall of limestone caves. ...
An oolite is a sedimentary rock formed from ooids, spherical grains composed of concentric layers. ...
Gossan is intensely oxidized, weathered or decomposed rock, usually the upper and exposed part of an ore deposit or mineral vein. ...
The most fundamental reactions in chemistry are the redox processes. ...
Cutting of laterite brickstones, Angadipuram, India Laterite is a surface formation in tropical areas which is enriched in iron and aluminium and develops by intensive and long lasting weathering of the underlying parent rock. ...
A sample of serpentinite rock, partially made up of chrysotile Serpentinite is a rock comprised of one or more serpentine minerals. ...
Recently, nanoparticulate authigenic goethite was shown to be the most common diagenetic iron oxyhydroxide in both marine and lake sediments.[1] Generated where it is found or observed. ...
Significant deposits of goethite are found in England, Cuba, and Michigan, Minnesota, Missouri, Colorado, Alabama, Georgia, Virginia, and Tennessee in the United States. Motto: (French for God and my right) Anthem: God Save the King/Queen Capital London (de facto) Largest city London Official language(s) English (de facto) Unification - by Athelstan AD 927 Area - Total 130,395 km² (1st in UK) 50,346 sq mi Population - 2006 est. ...
Official language(s) None (English, de-facto) Capital Lansing Largest city Detroit Area Ranked 11th - Total 97,990 sq mi (253,793 km²) - Width 239 miles (385 km) - Length 491 miles (790 km) - % water 41. ...
Capital Saint Paul Largest city Minneapolis Area Ranked 12th - Total 87,014 sq mi (225,365 km²) - Width 250 miles (400 km) - Length 400 miles (645 km) - % water 8. ...
This article does not adequately cite its references or sources. ...
Official language(s) English Capital Denver Largest city Denver Area Ranked 8th - Total 104,185 sq mi (269,837 km²) - Width 280 miles (451 km) - Length 380 miles (612 km) - % water 0. ...
Official language(s) English Capital Montgomery Largest city Birmingham Area Ranked 30th - Total 52,419 sq mi (135,765 km²) - Width 190 miles (306 km) - Length 330 miles (531 km) - % water 3. ...
Official language(s) English Capital Richmond Largest city Virginia Beach Area Ranked 35th - Total 42,793 sq mi (110,862 km²) - Width 200 miles (320 km) - Length 430 miles (690 km) - % water 7. ...
Official language(s) English Capital Nashville Largest city Memphis Largest metro area Nashville Area Ranked 36th - Total 42,169 sq mi (109,247 km²) - Width 120 miles (195 km) - Length 440 miles (710 km) - % water 2. ...
Deposits significant in location, if not in abundance, have been found in Gusev by NASA's Spirit rover, providing strong evidence for the presence of liquid water on the planet Mars in an earlier stage of its development. Gusev crater, with Maadim Vallis snaking into it Gusev Crater is a crater on the planet Mars and is located at 175. ...
MER-A (Spirit) is the first of the two Mars Exploration Rover Missions. ...
Mars is the fourth planet from the Sun in the solar system, named after the Roman god of war (the counterpart of the Greek Ares), on account of its blood red color as viewed in the night sky. ...
Feroxyhyte and Lepidocrocite are both polymorphs of the iron oxyhydroxide FeO(OH). Although they have the same chemical formula as goethite they each have different crystalline structures making them distinct minerals. Feroxyhyte is and oxide/hydroxide of iron, Fe3+O(OH). ...
Lepidocrocite (FeO(OH)), also called esmeraldite or hydrohematite, is an iron oxide-hydroxide mineral. ...
References
- ^ C. van der Zee, D. Roberts, D.G. Rancourt, C.P. Slomp. Nanogoethite is the dominant reactive oxyhydroxide phase in lake and marine sediments. Geology 31 (2003) 993-996.
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