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Topic: Mineral


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  Amethyst Galleries' Mineral Gallery
A mineral is (generally) an inorganic, naturally occurring, organized crystalline structure composed of a single chemical compound or element.
Mineral crystals form because their component chemicals tend to aggregate together in certain specific arrangements dictated by the shapes and components of the molecules involved (and sometimes varying with temperature and pressure).
Often, minerals are formed as a solution changes in some way which allows or forces the component mineral(s) to solidify.
mineral.galleries.com   (647 words)

  
  Mineral (chemistry) - MSN Encarta
Mineral (chemistry), in general, any naturally occurring chemical element or compound, but in mineralogy and geology, chemical elements and compounds that have been formed through inorganic processes.
Mineral species are, as a rule, limited to solid substances, the only liquids being metallic mercury and water.
Metalliferous minerals of economic value, which are mined for their metals, are known as ores.
encarta.msn.com /encnet/refpages/RefArticle.aspx?refid=761565568   (185 words)

  
  Mineral - Wikipedia, the free encyclopedia
Minerals range in composition from pure elements and simple salts to very complex silicates with thousands of known forms (organic compounds are usually excluded).
A crystal structure is the orderly geometric spatial arrangement of atoms in the internal structure of a mineral.
A mineral is a naturally occurring, inorganic solid with a definite chemical composition and a crystalline structure.
en.wikipedia.org /wiki/Mineral   (1494 words)

  
 Mineral   (Site not responding. Last check: )
Minerals are named in various ways, some in honour of a person (weloganite, after Sir William E.), a locality (athabascaite), an institution (mcgillite), the chemical composition (cobaltite), or a distinctive property such as colour (azurite) or shape (cylindrite).
Concentrations of minerals range from small occurrences to large deposits and are formed by various processes, including solidification of mineral-bearing solutions in rock openings (eg, fissures, cavities), precipitation from mineral-rich waters as in springs and saline lakes, and solidification of gases during volcanic eruptions.
Colour in minerals results from atoms or structural defects (colour centres) that absorb certain portions of the spectrum of light; the unabsorbed portion is reflected or transmitted to the eye as colour.
www.thecanadianencyclopedia.com /PrinterFriendly.cfm?ArticleId=A0005312   (2228 words)

  
 Mineral Kingdom - Crystalinks
Minerals range in composition from pure elements and simple salts to very complex silicates with thousands of known forms (organic compounds are usually excluded).
A mineral is a naturally occurring, inorganic substance with a definite chemical composition and a crystalline structure.
The largest group of minerals by far are the silicates, which are composed largely of silicon and oxygen, with the addition of ions such as aluminium, magnesium, iron, and calcium.
www.crystalinks.com /mineral.html   (1247 words)

  
 Mineral Identification
Minerals are defined as naturally occurring, inorganic, solids with a definite chemical composition and a regular, internal crystalline structure.
While many minerals share common physical properties, when all of a mineral's physical properties are examined, it often results in a unique set of physical properties which can be used to identify the mineral.
Scratch the unknown mineral with a known hardness to determine which mineral is harder.
facweb.bhc.edu /academics/science/harwoodr/Geol101/Labs/Minerals   (1036 words)

  
 USGS Mineral Resources Program
Research and assessment—Provides information for land planners and decision makers about where mineral commodities are known and suspected in the Earth's crust and about the environmental consequences of the presence of those commodities.
MRP supports an on-going effort to coordinate the development of national-scale geologic, geochemical, geophysical, and mineral resource databases and the migration of existing databases to standard models and formats that are available to both internal and external users.
The unique expertise developed by MRP over many decades in response to mineral-resource-related issues is now in demand to support applications such as public health research and remediation of natural hazards.
minerals.usgs.gov   (278 words)

  
 Mineral Chemistry
Thus, the most common minerals are minerals that have a chemical composition made of the common elements found in their environment.
While the common minerals are made up mostly of the abundant elements in the Crust, and we can express the chemical composition of such minerals by a simple (and sometimes not so simple) chemical formula, all minerals exhibit some chemical variation.
Individual minerals are much smaller than rocks and it is therefore difficult to obtain enough sample of a mineral to perform the chemical analysis.
www.tulane.edu /~sanelson/eens211/mineral_chemistry.htm   (4137 words)

  
 The Austin Chronicle Music: Picks to Click   (Site not responding. Last check: )
Yet while the Radiohead anthem was quickly dismissed as a one-hit-wonder, Mineral's fans kept expecting more of the same-old quasi-punk melodramatics out of the Austin group that, along with Sunny Day Real Estate and Cap'n Jazz, helped put emo on the map.
Mineral's reputation grew to the point where Epitaph released their final album Endserenading posthumously in 1998, knowing there would be no accompanying tour.
Mogis was the project foreman as the band fleshed out, deconstructed, and recombined songs like "I Was Born in Omaha," a straightforward, voice-and-acoustic ballad that expands into a vivid seven-minute tableau, propelled by a solid backbeat, and drenched in the honey-soaked atmospherics that have become the band's calling card.
www.austinchronicle.com /issues/dispatch/2002-03-01/music_set7.html   (498 words)

  
 Mineral Makeup | Mineral Cosmetics
Mineral pure makeup offers a line of natural mineral makeup that is 100% pure makeup, mineral bronzers, best mineral make up, natural cosmetics, mineral blushes, pure mineral makeup, mineral foundation, multi purpose eye shadows, natural skin care and a wide range of mineral cosmetics and loose mineral make up at discount prices..
Mineral cosmetics can be used after recent plastic surgery and is the most natural cosmetic on the market.
Mineral cosmetic is an excellent sports make up and is also ideal for women with active lifestyles.
www.mineralpuremakeup.com   (813 words)

  
 MINERAL
Mineral formed in 1994 and like other young bands, they toured constantly, virtually living in their van.
Their first full length "The Power Of Failing", was recorded in 6 days in October 1995, followed by a split 7 inch with Jimmy Eat World and Sense Field shortly after when the three bands hit the road together.
Mineral released their second full length, "End Serenading" in 1998 with Mark Trombino at Big Fish Studios in Encinitas, California.
www.crankthis.com /mineral.html   (213 words)

  
 Nomenclature clay minerals
Because of their small particle sizes and variable degrees of crystal perfection, it is not surprising that clay minerals proved extremely difficult to characterize adequately prior to the development of modern analytical techniques.
No general agreement has been reached yet as to preferred terminology for interstratified minerals, except that the material should be characterized fully as to degree of regularity or irregularity of the interstratification and that it should be described in terms of the nature and ratios of the component layers.
The IMA Commission on New Minerals and Mineral Names has disapproved the name sangarite for a regular l: 1 interstratification of trioctahedral chlorite-vermiculite (Drits and Kossovskaya, 1963), and has approved the name tarasovite for a regular 3: 1 interstratification of dioctahedral mica-smectite (Lazarenko and Korolev, 1970).
www.minsocam.org /msa/collectors_corner/arc/nomenclaturecl1.htm   (4085 words)

  
 Mineral Descriptions, Links for Mineralogists
This mineral gallery is currently displaying 266 specimens of common minerals (including structural formulas), arranged in 8 classes according to the Strunz Mineralogical Tables.
The Commission on New Minerals and Mineral Names (CNMMN): CNMMN of the International Mineralogical Association (IMA) was established for the purpose of controlling the introduction of new minerals and mineral names, and of rationalising mineral nomenclature.
Mineralogical Society of America: International Mineralogical Association Commission on New Minerals and Mineral Names reports (compiled by the Mineralogical Association of Canada and the Canadian Mineralogist on the occasion of the IMA 17th General Meeting in Toronto).
www.mineralogie.uni-wuerzburg.de /links/description/description.html   (1984 words)

  
 MINERALS   (Site not responding. Last check: )
Minerals are natural inorganic (non-living) substances that have the same chemical makeup and crystal shape.
Some minerals have metal with a metalic luster (how it reflects light) mixed in with them that causes them to shine.
Some minerals you are very familiar with, and some you may never have heard of.
www.ivyhall.district96.k12.il.us /4th/kkhp/RocksandMinerals/minerals.html   (72 words)

  
 Mineral ID_Key
Since some minerals may leave a powdered streak on the item being scratched (or the known hardness item may leave a streak on the sample) one must rub the "scratch" with a finger to see if it is really a scratch or just a powder streak that rubs off.
That "malachite-green" mineral may not be malachite… That brass-yellow metallic mineral may not be pyrite… It is always a good idea to try and get a powdered streak from any colored mineral and compare it with descriptions of the streaks for the likely suspects you have in mind.
Where a mineral is found — the type of rock in which it is found — and with what it is found — the other minerals that occur with it — can be as important to identifying the mineral as its physical properties.
www.rockhounds.com /rockshop/mineral_id   (8421 words)

  
 Mineral, Virginia VA, town profile (Louisa County) - hotels, festivals, genealogy, newspapers - ePodunk
Mineral is a town in Louisa County, in the Richmond metro area.
At the time of the 2000 census, the per capita income in Mineral was $19,397, compared with $21,587 nationally.
Median rent in Mineral, at the time of the 2000 Census, was $419.
www.epodunk.com /cgi-bin/genInfo.php?locIndex=25570   (477 words)

  
 Ionic Crystalloid Minerals Calcium Multi-Mineral Silver Magnesium Copper Gold Angstrom Size
A mineral that is not small enough (absorbable) for the body to use remains in the bloodstream and may cause disease.
Due to mineral (nutrient) depleted soils, unnatural farming techniques, premature harvests (to hurry to market) and poor handling and storage of food, many are experiencing health problems due to mineral deficiencies.
Magnesium is called the "anti-stress mineral" mineral because it aids in relaxing nerves, reliving tension, assisting in digestion, and regulating muscle contraction and relaxation.
www.worldimage.com /products/minerals   (1923 words)

  
 Fluorescent Mineral Society - Home Page
Share knowledge and experience in collecting, identifying, and displaying minerals which exhibit various forms of luminescence including fluorescence, phosphorescence, triboluminescence, and thermoluminescence.
Organize seminars, research projects, displays, and exchanges of luminescent minerals, and to disseminate information about luminescent minerals.
Encourage interests related to fluorescent minerals such as photography of fluorescent specimens, the study of other luminescent minerals, and the various uses of ultraviolet lights.
www.uvminerals.org   (135 words)

  
 Mineral Lake Resort -- Mineral Lake Area & History
Mineral Lake, famous for its excellent fishing all season, is a spectacular on opening weekend with its festivities, garage sales and the popular American Legion Fishing Derby.
An arsenic mine was operting up Mineral Creek until about 1920 when the mineral became available as a by-product of a manufacturing process that resulted in the arsenic being produced cheaper than it could be mined.
Mineral never recovered its prosperity, even though the shingle mill was in business for a long time.
www.minerallakeresort.com /lake.html   (1017 words)

  
 USGS Photo Glossary: Mineral
A mineral is a naturally occurring inorganic element or compound having an orderly internal structure and characteristic chemical composition, crystal morphology and physical properties such as density and hardness.
Minerals are the fundamental units from which most rocks are made.
Amber is not a mineral because it is formed by organic processes, and its chemical composition can vary.
volcanoes.usgs.gov /Products/Pglossary/mineral.html   (138 words)

  
 What’s That Mineral?
Some minerals do not look like crystals, either because the crystals are too small to see without a microscope or because they have been broken.
Streak is the color of a mineral when it is powdered and it is often different from the color of the whole mineral.
Minerals that have cleavage will break in a certain direction where the bonds between atoms are not strong.
www.windows.ucar.edu /tour/link=/earth/geology/mineral_id1.html   (459 words)

  
 USGS Geology in the Parks
Like plagioclase feldspar, potassium feldspars are silicate minerals that contain a considerable amount of -you guessed it- potassium.
Micas are another group of silicate minerals composed of varying amounts of potassium, magnesium, iron as well as aluminum, silicon and water.
The amphiboles are a family of silicate minerals that form prism or needle-like crystals.
wrgis.wr.usgs.gov /docs/parks/rxmin/mineral.html   (338 words)

  
 Multiple Vitamin-Mineral Supplements   (Site not responding. Last check: )
Mineral levels may be lower, or in the case of high potency MVMs, most or all mineral levels may also be at 100% of DV or USRDA.
Phosphorus is another essential dietary mineral, but it is so abundant in the human diet that deficiencies are virtually unknown, and it does not need to be included in an MVM formula.
The theory is that releasing vitamins and minerals slowly into the body over a period of time is better than releasing all of the nutrients at once.
www.kroger.com /hn/Supp/Multi_Vitamin.htm   (1786 words)

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