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Biggs Jasper
Biggs jasper is a variety of the mineral jasper. It is a "picture jasper" – a jasper that exhibits particular patterns and colors – and is used as an opaque gemstone. It exhibits intricate, shell- or layer-like patterns in shades of brown ranging from beige to dark brown. The stone was first discovered around 1960 near Biggs Junction, Oregon, and is found in the basalt deposits of the American Pacific Northwest. Biggs jasper was formed as mud from volcanic ash was deposited on basalt terrain, and subsequently heated and compressed through volcanic activity. Because of this sedimentary origin, it is relatively rare, and is valued as a gemstone. Discovery Biggs jasper was first found around 1960 at the bottom of a creek near Biggs Junction, Oregon, after possibly being carried for some time by water from the outcrop where it originated. More of the stone was found in the 1960s, particularly during road works in 1966 when U.S. Route 97 was relocated through a canyon south of B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Biggs Jasper On Carpet
Biggs may refer to: Arts and entertainment * Biggs (TV channel), a Portuguese television channel for kids, teens and youth. * Biggs Darklighter, a character in ''Star Wars Episode IV: A New Hope'' * Biggs, a recurring character in the ''Final Fantasy'' series of role-playing games Business and organizations * bigg's, a hypermarket chain in Ohio and Kentucky * Mr Bigg's, Nigerian fast food chain * Biggs Furniture of Richmond, Virginia People * Biggs (surname) * Kareem Burke, nicknamed "Biggs", an American entrepreneur and record executive * Ronald Isley, stagename "Mr. Biggs", an American singer-songwriter and record executive Places * Biggs, California, U.S. * Biggs, Kentucky, U.S. * Biggs Junction, Oregon, U.S. * Biggs Army Airfield, Texas, U.S. * Biggs Settlement, Michigan, U.S. See also * * Bigg (other) * Big (other) * Biggs jasper Biggs jasper is a variety of the mineral jasper. It is a "picture jasper" – a jasper that exhibits particular pattern ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Silicon Dioxide
Silicon dioxide, also known as silica, is an oxide of silicon with the chemical formula , most commonly found in nature as quartz and in various living organisms. In many parts of the world, silica is the major constituent of sand. Silica is one of the most complex and most abundant families of materials, existing as a compound of several minerals and as a synthetic product. Notable examples include fused quartz, fumed silica, silica gel, opal and aerogels. It is used in structural materials, microelectronics (as an electrical insulator), and as components in the food and pharmaceutical industries. Structure In the majority of silicates, the silicon atom shows tetrahedral coordination, with four oxygen atoms surrounding a central Si atomsee 3-D Unit Cell. Thus, SiO2 forms 3-dimensional network solids in which each silicon atom is covalently bonded in a tetrahedral manner to 4 oxygen atoms. In contrast, CO2 is a linear molecule. The starkly different structures of the dioxid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bolo Tie
A bolo tie (sometimes bola tie or shoestring necktie) is a type of necktie consisting of a piece of cord or braided leather with decorative metal tips (called aiguillettes) and secured with an ornamental clasp or slide. Popularity In the United States, bolo ties are widely associated with Western wear and are generally most common in the western areas of the country. Bolo tie slides and tips in silver have been part of Hopi, Navajo, Zuni, and Puebloan silversmithing traditions since the mid-20th century. The bolo tie was made the official neckwear of Arizona on April 22, 1971 by Governor Jack Williams. New Mexico passed a non-binding measure to designate the bolo as the state's official neckwear in 1987. On March 13, 2007, New Mexico Governor Bill Richardson signed into law that the bolo tie was the state's official tie. Also in 2007, the bolo tie was named the official tie of Texas. In the United Kingdom, bolo ties are known as bootlace ties. They were popular with 1950s Ted ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chert
Chert () is a hard, fine-grained sedimentary rock composed of microcrystalline or cryptocrystalline quartz, the mineral form of silicon dioxide (SiO2). Chert is characteristically of biological origin, but may also occur inorganically as a precipitation (chemistry), chemical precipitate or a diagenesis, diagenetic replacement, as in petrified wood. Chert is typically composed of the petrified remains of siliceous ooze, the biogenic sediment that covers large areas of the deep ocean floor, and which contains the silicon skeletal remains of diatoms, Dictyochales, silicoflagellates, and radiolarians. Precambrian cherts are notable for the presence of fossil cyanobacteria. In addition to Micropaleontology, microfossils, chert occasionally contains macrofossils. However, some chert is devoid of any fossils. Chert varies greatly in color (from white to black), but most often manifests as gray, brown, grayish brown and light green to rusty redW.L. Roberts, T.J. Campbell, G.R. Rapp Jr. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Translucent
In the field of optics, transparency (also called pellucidity or diaphaneity) is the physical property of allowing light to pass through the material without appreciable scattering of light. On a macroscopic scale (one in which the dimensions are much larger than the wavelengths of the photons in question), the photons can be said to follow Snell's law. Translucency (also called translucence or translucidity) allows light to pass through, but does not necessarily (again, on the macroscopic scale) follow Snell's law; the photons can be scattered at either of the two interfaces, or internally, where there is a change in index of refraction. In other words, a translucent material is made up of components with different indices of refraction. A transparent material is made up of components with a uniform index of refraction. Transparent materials appear clear, with the overall appearance of one color, or any combination leading up to a brilliant spectrum of every color. The opposite ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wasco, Oregon
Wasco is a city in Sherman County, Oregon, United States. The population was 410 at the 2010 census. Geography According to the United States Census Bureau, the city has a total area of , all land. Wascoite, a type of white clay-based mineral found near Biggs jasper, is locally named for Wasco. Climate This region experiences warm (but not hot) and dry summers, with no average monthly temperatures above 71.6 °F. According to the Köppen Climate Classification system, Wasco has a warm-summer Mediterranean climate, abbreviated "Csb" on climate maps. Demographics 2010 census As of the census of 2010, there were 410 people, 182 households, and 111 families living in the city. The population density was . There were 208 housing units at an average density of . The racial makeup of the city was 95.6% White, 0.5% African American, 0.7% Native American, 0.2% Asian, 0.2% Pacific Islander, 1.5% from other races, and 1.2% from two or more races. Hispanic or Latino people of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stratum
In geology and related fields, a stratum ( : strata) is a layer of rock or sediment characterized by certain lithologic properties or attributes that distinguish it from adjacent layers from which it is separated by visible surfaces known as either '' bedding surfaces'' or ''bedding planes''.Salvador, A. ed., 1994. ''International stratigraphic guide: a guide to stratigraphic classification, terminology, and procedure. 2nd ed.'' Boulder, Colorado, The Geological Society of America, Inc., 215 pp. . Prior to the publication of the International Stratigraphic Guide, older publications have defined a stratum as either being either equivalent to a single bed or composed of a number of beds; as a layer greater than 1 cm in thickness and constituting a part of a bed; or a general term that includes both ''bed'' and ''lamina''.Neuendorf, K.K.E., Mehl, Jr., J.P., and Jackson, J.A. , eds., 2005. ''Glossary of Geology'' 5th ed. Alexandria, Virginia, American Geological Institute. 779 pp. . ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rosette (design)
A rosette is a round, stylized flower design. Origin The rosette derives from the natural shape of the botanical rosette, formed by leaves radiating out from the stem of a plant and visible even after the flowers have withered. History The rosette design is used extensively in sculptural objects from antiquity, appearing in Mesopotamia, and in funeral steles' decoration in Ancient Greece. The rosette was another important symbol of Ishtar which had originally belonged to Inanna along with the Star of Ishtar. It was adopted later in Romaneseque and Renaissance architecture, and also common in the art of Central Asia, spreading as far as India where it is used as a decorative motif in Greco-Buddhist art. Ancient origins One of the earliest appearances of the rosette in ancient art is in early fourth millennium BC Egypt. Another early Mediterranean occurrence of the rosette design derives from Minoan Crete; Among other places, the design appears on the Phaistos Disc, recove ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plasticity (physics)
In physics and materials science, plasticity, also known as plastic deformation, is the ability of a solid material to undergo permanent Deformation (engineering), deformation, a non-reversible change of shape in response to applied forces. For example, a solid piece of metal being bent or pounded into a new shape displays plasticity as permanent changes occur within the material itself. In engineering, the transition from Elasticity (physics), elastic behavior to plastic behavior is known as Yield (engineering), yielding. Plastic deformation is observed in most materials, particularly metals, soils, Rock (geology), rocks, concrete, and foams. However, the physical mechanisms that cause plastic deformation can vary widely. At a crystalline scale, plasticity in metals is usually a consequence of dislocations. Such defects are relatively rare in most crystalline materials, but are numerous in some and part of their crystal structure; in such cases, plastic crystallinity can res ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Limonite
Limonite () is an iron ore consisting of a mixture of hydrated iron(III) oxide-hydroxides in varying composition. The generic formula is frequently written as FeO(OH)·H2O, although this is not entirely accurate as the ratio of oxide to hydroxide can vary quite widely. Limonite is one of the three principal iron ores, the others being hematite and magnetite, and has been mined for the production of iron since at least 2500 BP. Names Limonite is named for the Greek word λειμών (/leː.mɔ̌ːn/), meaning "wet meadow", or λίμνη (/lím.nɛː/), meaning “marshy lake” as an allusion to its occurrence as '' bog iron ore'' in meadows and marshes. In its brown form it is sometimes called brown hematite or brown iron ore. Characteristics Limonite is relatively dense with a specific gravity varying from 2.7 to 4.3.Northrop, Stuart A. (1959) "Limonite" ''Minerals of New Mexico'' (revised edition) University of New Mexico Press, Albuquerque, New Mexico, pp. 329–333, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colloid
A colloid is a mixture in which one substance consisting of microscopically dispersed insoluble particles is suspended throughout another substance. Some definitions specify that the particles must be dispersed in a liquid, while others extend the definition to include substances like aerosols and gels. The term colloidal suspension refers unambiguously to the overall mixture (although a narrower sense of the word ''suspension'' is distinguished from colloids by larger particle size). A colloid has a dispersed phase (the suspended particles) and a continuous phase (the medium of suspension). The dispersed phase particles have a diameter of approximately 1 nanometre to 1 micrometre. Some colloids are translucent because of the Tyndall effect, which is the scattering of light by particles in the colloid. Other colloids may be opaque or have a slight color. Colloidal suspensions are the subject of interface and colloid science. This field of study was introduced in 1845 by Itali ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Igneous Rock
Igneous rock (derived from the Latin word ''ignis'' meaning fire), or magmatic rock, is one of the three main The three types of rocks, rock types, the others being Sedimentary rock, sedimentary and metamorphic rock, metamorphic. Igneous rock is formed through the cooling and solidification of magma or lava. The magma can be derived from Partial melting, partial melts of existing rocks in either a Terrestrial planet, planet's mantle (geology), mantle or crust (geology), crust. Typically, the melting is caused by one or more of three processes: an increase in temperature, a decrease in pressure, or a change in composition. Solidification into rock occurs either below the surface as intrusive rocks or on the surface as extrusive (geology), extrusive rocks. Igneous rock may form with crystallization to form granular, crystalline rocks, or without crystallization to form Volcanic glass, natural glasses. Igneous rocks occur in a wide range of geological settings: shields, platforms ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
