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Antimony Ochre
Antimony ochre (Antimony ocher in American English) or ''ochre of antimony'' (, ) — a partially obsolete trivial name for secondary antimony minerals of the oxide class. Antimony ochres most often have the appearance of a powdery brown-yellow to whitish product of weathering (oxidation) of antimonite or native antimony. Usually they are not a pure mineral (one of the ochres), but a mixture of two or more minerals: cervantite, valentinite, romeite, senarmontite, stibiconite, sometimes with an admixture of limonite or quartz. In the mineralogical sense of the word, antimony ochres are a loosely defined group of secondary antimony minerals of the oxide and hydroxide class. The most common antimony ochres are cervantite, romeite, and stibiconite,''Krivovichev V. G.'' Mineralogical glossary. Scientific editor A. G. Bulakh. — St.Petersburg: St.Petersburg Univ. Publ. House. 2009. — 556 p. — ISBN 978-5-288-04863-0 but their number is by no means exhaustive. At various time ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cervantite
Cervantite is an antimony oxide mineral with formula Sb3+Sb5+O4 (antimony tetroxide). It was first described in 1850 for an occurrence in Cervantes, Sierra de Ancares, Lugo, Galicia, Spain, and named for the locality. The mineral was questioned and disapproved, but re-approved and verified in 1962 based on material from the Zajaca-Stolice district, Brasina, Serbia. It occurs as a secondary alteration product of antimony bearing minerals, mainly stibnite Stibnite, sometimes called antimonite, is a sulfide mineral with the formula Sb2 S3. This soft grey material crystallizes in an orthorhombic space group. It is the most important source for the metalloid antimony. The name is derived from th .... References Oxide minerals Antimony minerals Orthorhombic minerals Minerals in space group 33 {{Oxide-mineral-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ochre
Ochre ( ; , ), or ocher in American English, is a natural clay earth pigment, a mixture of ferric oxide and varying amounts of clay and sand. It ranges in colour from yellow to deep orange or brown. It is also the name of the colours produced by this pigment, especially a light brownish-yellow. A variant of ochre containing a large amount of hematite, or dehydrated iron oxide, has a reddish tint known as "red ochre" (or, in some dialects, ruddle). The word ochre also describes clays coloured with iron oxide derived during the extraction of tin and copper. Earth pigments Ochre is a family of earth pigments, which includes yellow ochre, red ochre, purple ochre, sienna, and umber. The major ingredient of all the ochres is iron(III) oxide-hydroxide, known as limonite, which gives them a yellow colour. * Yellow ochre, , is a hydrated iron hydroxide (limonite) also called gold ochre. * Red ochre, , takes its reddish colour from the mineral hematite, which is an anhydrous i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stibiconite Group
Stibiconite is an antimony oxide mineral with formula: Sb3O6(OH). Its name originates from Greek "stibi" (antimony) and "konis" (powder), alluding to its composition and habit. It is a member of the pyrochlore super group. Discovery and occurrence It was first described in 1862 for an occurrence in the Brandholz - Goldkronach District, Fichtelgebirge, Franconia, Bavaria. It occurs as a secondary alteration product of other hydrothermal antimony minerals such as stibnite. It occurs in association with cervantite, valentinite, kermesite, native antimony Antimony is a chemical element with the symbol Sb (from la, stibium) and atomic number 51. A lustrous gray metalloid, it is found in nature mainly as the sulfide mineral stibnite (Sb2S3). Antimony compounds have been known since ancient times ... and stibnite. References Antimony minerals Oxide minerals Cubic minerals Minerals in space group 227 {{oxide-mineral-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Romeite
Roméite is a calcium antimonate mineral with the chemical formula . It is a honey-yellow mineral crystallizing in the hexoctahedral crystal system. It has a Mohs hardness of 5.5-6.0. It occurs in Algeria, Australia, Brazil, China, Europe, Japan, New Zealand, and the United States in metamorphic iron-manganese deposits and in hydrothermal antimony-bearing veins. Its type locality is Prabornaz Mine, Saint-Marcel, Aosta Valley, Italy. It was named after Jean-Baptiste L. Romé de l'Isle. Brugger, et al. (1997) used infrared Infrared (IR), sometimes called infrared light, is electromagnetic radiation (EMR) with wavelengths longer than those of visible light. It is therefore invisible to the human eye. IR is generally understood to encompass wavelengths from around ... spectroscopy to measure water content in Roméite crystals. References Further reading *Brugger, J., R. Gieré, Stefan Graeser, Nicolas Meisser, The crystal chemistry of roméite, Contributions to Min ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cornwall
Cornwall (; kw, Kernow ) is a historic county and ceremonial county in South West England. It is recognised as one of the Celtic nations, and is the homeland of the Cornish people. Cornwall is bordered to the north and west by the Atlantic Ocean, to the south by the English Channel, and to the east by the county of Devon, with the River Tamar forming the border between them. Cornwall forms the westernmost part of the South West Peninsula of the island of Great Britain. The southwesternmost point is Land's End and the southernmost Lizard Point. Cornwall has a population of and an area of . The county has been administered since 2009 by the unitary authority, Cornwall Council. The ceremonial county of Cornwall also includes the Isles of Scilly, which are administered separately. The administrative centre of Cornwall is Truro, its only city. Cornwall was formerly a Brythonic kingdom and subsequently a royal duchy. It is the cultural and ethnic origin of the Cor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endellion
Saint Endelienta (also Endelient, Edellienta or Endellion) was a Cornish saint of the 5th and 6th century. She is believed to be a daughter of the Welsh King Brychan, and a native of South Wales who travelled to North Cornwall to join her siblings in converting the locals to Christianity. Legend says that she was a goddaughter of King Arthur, and that she lived as a hermit at Trentinney where she subsisted on the milk of a cow. The saint is commemorated in the church and village of St Endellion which bear her name; Endellion being an Anglicised version of her name. Her feast day is 29 April. Life Tradition makes her a daughter of King Brychan, of Brycheiniog in South Wales. The village of Saint Endellion in Cornwall, named after her, is from where she is said to have evangelized the local population. Two former wells near the village were named after her. She is called "Cenheidlon" in Welsh records, with ''Endelienta'' being a Latinised form of the name. Her feast day is 29 A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jamesonite
Jamesonite is a sulfosalt mineral, a lead, iron, antimony sulfide with formula Pb4FeSb6S14. With the addition of manganese it forms a series with benavidesite.http://rruff.geo.arizona.edu/doclib/hom/jamesonite.pdf Handbook of Mineralogy It is a dark grey metallic mineral which forms acicular prismatic monoclinic crystals. It is soft with a Mohs hardness of 2.5 and has a specific gravity of 5.5 - 5.6. It is one of the few sulfide minerals to form fibrous or needle like crystals. It can also form large prismatic crystals similar to stibnite with which it can be associated. It is usually found in low to moderate temperature hydrothermal deposits. It was named for Scottish mineralogist Robert Jameson (1774–1854). It was first identified in 1825 in Cornwall, England. It is also reported from South Dakota and Arkansas, US; Zacatecas, Mexico; and Romania Romania ( ; ro, România ) is a country located at the crossroads of Central, Eastern, and Southeastern Europe. It bor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bindheimite
__TOC__ B Ba # Babánekite (vivianite: IMA2012-007) 8.CE o o(IUPAC: tricopper diarsenate octahydrate) #Babefphite (IMA1966-003) 8.BA.1 (IUPAC: barium beryllium fluoro phosphate) # (rhodonite: 1824) 9.DK.0 # [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stiblite
Stiblite, ''stibilite'', ''stibiolite'' ( from + , stone), also ''stibiconise'' or ''antimony ochre''''Krivovichev V. G.'' Mineralogical glossary. Scientific editor A. G. Bulakh. — St.Petersburg: St.Petersburg Univ. Publ. House. 2009. — 556 p. — ISBN 978-5-288-04863-0 (, )''Robert Philips Greg, William Garrow Lettsom'' (1858). Manual of the Mineralogy of Great Britain & Ireland. — London: John Van Voorst, 1858. — an obsolete, formerly widely used mineralogical name for one of the best known and most widespread antimony ochres. Established in 1847 (by Johann Blum and Delfs) a decade and a half after stibiconite,Minerals (handbook). Volume II. Issue 3. Complex oxides, titanates, niobates, tantalates, antimonates, hydroxides. Editors in charge: '' F. V. Chukhrov, E. M. Bonshtedt-Kupletskaya''. — Moscow: Nauka, 1967. stiblite was known in the 19th century as a secondary antimony mineral of the ″hydrous oxide″ class,'' V. V. Nefedyev''. Notes of the Imperial St. Pete ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dust
Dust is made of fine particles of solid matter. On Earth, it generally consists of particles in the atmosphere that come from various sources such as soil lifted by wind (an aeolian process), volcanic eruptions, and pollution. Dust in homes is composed of about 20–50% dead skin cells. The rest, and in offices, and other human environments is composed of small amounts of plant pollen, human hairs, animal fur, textile fibers, paper fibers, minerals from outdoor soil, burnt meteorite particles, and many other materials which may be found in the local environment. Atmospheric Atmospheric or wind-borne fugitive dust, also known as ''aeolian dust'', comes from arid and dry regions where high velocity winds are able to remove mostly silt-sized material, deflating susceptible surfaces. This includes areas where grazing, ploughing, vehicle use, and other human behaviors have further destabilized the land, though not all source areas have been largely affected by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stibiconite
Stibiconite is an antimony oxide mineral with formula: Sb3O6(OH). Its name originates from Greek "stibi" (antimony) and "konis" (powder), alluding to its composition and habit. It is a member of the pyrochlore super group. Discovery and occurrence It was first described in 1862 for an occurrence in the Brandholz - Goldkronach District, Fichtelgebirge, Franconia, Bavaria. It occurs as a secondary alteration product of other hydrothermal antimony minerals such as stibnite. It occurs in association with cervantite, valentinite, kermesite, native antimony Antimony is a chemical element with the symbol Sb (from la, stibium) and atomic number 51. A lustrous gray metalloid, it is found in nature mainly as the sulfide mineral stibnite (Sb2S3). Antimony compounds have been known since ancient times ... and stibnite. References Antimony minerals Oxide minerals Cubic minerals Minerals in space group 227 {{oxide-mineral-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
