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marcasite
marcasite
The Oxford Pocket Dictionary of Current English
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2009
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© The Oxford Pocket Dictionary of Current English 2009, originally published by Oxford University Press 2009. (Hide copyright information)
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mar·ca·site
/ ˈmärkəˌsīt/
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n.
a semiprecious stone consisting of pyrite.
∎
a bronze-yellow mineral consisting of iron disulfide but differing from pyrite in typically forming aggregates of tabular crystals.
∎
a piece of polished steel or a similar metal cut as a gem.
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Marcasite makes mark on jewelry
Newspaper article from: Chicago Sun-Times; 9/19/1986; ; 408 words
; ...your jewelry - marcasites were made to be...Technically, marcasite is crystallized...several pieces of marcasite jewelry, including...Surrounded by marcasites, it is priced...going rate for old marcasite bracelets ranges...be identified by marcasites set in a base of...
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Occurrence of marcasite in an organic-rich Holocene estuarine mud.
Magazine article from: Australian Journal of Soil Research; 9/1/2004; ; 700+ words
; Introduction Marcasite is the mineral dimorph of pyrite, sharing...sediments (Berner 1970), whereas diagenic marcasite has only been reported in Cretaceous...Vaughan and Lennie 1991). Like pyrite, marcasite contains [S.sub.2.sup.2...
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Pyrite and marcasite intergrowths from Northern Illinois.
Magazine article from: The Mineralogical Record; 3/1/1995; ; 700+ words
; Excellent microcrystals of pyrite and marcasite are found in vugs in Ordovician limestone...The crystals include pyrite "bars" and marcasite blades which are epitactic on early-formed marcasite whisker crystals. INTRODUCTION Three quarries...
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Calcite and Marcasite Specimens from the Brushy Creek Mine.
Magazine article from: Rocks & Minerals; 11/1/1997; ; 700+ words
; ...long growing on glittering iridescent marcasite crystals of rainbow colors. Imagine...sparkling overgrowth of drusy, iridescent marcasite that is, in turn, partially covered...secondary growth of calcite. The iridescent marcasite makes a striking contrast with the gray...
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BEYOND MARCASITE: JUDITH JACK'S GOLD RUSH.
Magazine article from: WWD; 3/8/1999; ; 700+ words
; ...gold collection to its established marcasite-driven bridge jewelry business. "Judith Jack has transcended marcasite," said Michael Horowitz, president...semiprecious stones and mixed with marcasite, is set at a price point that Horowitz...
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Bling & Things
Magazine article from: Antiques & Collecting Magazine; 3/1/2008; ; 700+ words
; ...you Know? Do you know how marcasites and aurora borealis rhinestones...exactly they are made of? Marcasites are basically a silvery...white iron pyrite. Most marcasites are actually not the mineral marcasite at all, but are pyrite crystals...
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Accessories: a color-filled season. (women's clothing accessory styles)(WWD/MAGIC International)
Magazine article from: WWD; 1/16/1996; ; 700+ words
; ...Femininity will also play a role at marcasite maker Judith Jack, according to Eileen...necklaces, and items with square and round marcasite comprise the firm's latest feminine...Creations/Jenna Nicole, which also markets marcasite jewelry, is set to unveil a line featuring...
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Iowa mineral locality index.
Magazine article from: Rocks & Minerals; 11/1/2002; ; 700+ words
; ...galena, goethite, hemimorphite, marcasite, pyrite, quartz (drusy), smithsonite...purple color-zoned, cubic), gypsum, marcasite, pyrite, siderite, sphalerite (Prior...coatings), galena, goethite (after marcasite and pyrite), hemimorphite, marcasite...
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 "Albany Times Union (Albany, NY)")
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Kewpies near century mark.(Life-Spaces)
Newspaper article from: Albany Times Union (Albany, NY); 5/17/2008; 700+ words
; ...possibly worth $5,000 or more. Q: My snake-shaped silvery pin was sold to me as "silver set with marcasite." What is marcasite? A: Marcasite is a mineral like pyrite ("fools gold"), but it has a different crystal structure. It is sometimes...
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the kewpie is still dear to collectors antiques and collecting.(Flavor/Gracious Living)
Newspaper article from: The Virginian Pilot; 5/11/2008; 700+ words
; ...possibly worth $5,000 or more. Q. My snake-shaped silvery pin was sold to me as "silver set with marcasite." What is marcasite? A. Marcasite is a mineral like pyrite ("fools gold"), but it has a different crystal structure. It is sometimes...
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marcasite
Book article from: A Dictionary of Earth Sciences
marcasite Mineral, FeS 2 ; sp. gr. 4.8–4.9; hardness 6.0–6.5; orthorhombic ; pale bronze-yellow...
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Polymorph
Book article from: World of Earth Science
...graphite is hexagonal. Pyrite is the cubic form of FeS 2 , marcasite, the orthorhombic version. A single chemical composition...more energy. The examples of diamond-graphite, pyrite-marcasite, and calcite-aragonite are all known as reconstructive...
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Lead
Book article from: How Products Are Made
...three minerals. However, most deposits of these ores are not found alone but mixed with other minerals such as pyrite, marcasite, and zinc blende. Therefore much lead ore is obtained as a byproduct of other metal mining, usually zinc or silver. Only...
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coralloid
Book article from: A Dictionary of Earth Sciences
coralloid Literally, coral-like, but used to describe the circular, curved, or irregular shapes that sometimes result from the chemical precipitation of minerals, e.g. marcasite .
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De Villanova, Arnold (or Arnuldus) (d. ca. 1313)
Encyclopedia entry from: Encyclopedia of Occultism and Parapsychology
...publicly at Tarragona. De Villanova was acquainted with the preparation of oil of turpentine and oil of rosemary, while the marcasite frequently mentioned by him is said to be identical to the element bismuth. His most important treatises are Thesaurus Thesaurorum...
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