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orpiment

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Orpiment - Wikipedia
Orpiment, also known as yellow arsenic blende is a deep-colored, orange-yellow arsenic sulfide mineral with formula As 2 S 3. en.wikipedia.org
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Deep-Sea Worm Produces Orpiment, a Toxic Yellow Pigment Used ...
Orpiment is a naturally occurring arsenic sulfide mineral, often found in hydrothermal and magmatic ore deposits. The findings came as a ... www.scientificamerican.com
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Orpiment - MFA Cameo
Orpiment ranges in color from a bright lemon yellow to orange. It changes to the red crystalline form at 170C. cameo.mfa.org
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orpiment
orpiment (ˈɔːpɪmənt) Also 5–7 orpement, 5 -mynt, orpyment, 6–7 orp(e)mente, (orpinent), 6–8 orpment. See also auripigment. [a. OF. orpiment (12th c. in Hatz.-Darm.), also or pieument, or pigment (Godef.), ad. L. auripigmentum (Vitruv.) gold pigment. Cf. It. orpimento, Sp. oropimiento.] A bright yell... Oxford English Dictionary
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Orpiment Meanings and Crystal Properties
Orpiment is an arsenic sulfide mineral that crystallizes in the form of masses, botryoidal, and small prismatic shards (extremely rare). Its color is bright ... thecrystalcouncil.com
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Orpiment: Mineral information, data and localities.
Commonly in foliated columnar or fibrous aggregates, with cleavages as much as 60 cm across; may be reniform or botryoidal; also granular or powdery; rarely as ... www.mindat.org
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Getchellite
Orpiment is yellow to brownish gold, cinnabar is deep red and getchellite is a bright orange red. zone cutting across interbedded shales, argillites (lithified muds and oozes) and limestones, near an intrusion of granodiorite.Associated minerals are orpiment wikipedia.org
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Orpiment | Arsenic, Sulfur, Pigment - Britannica
Orpiment, the transparent yellow mineral arsenic sulfide (As 2 S 3 ), formed as a hot-springs deposit, an alteration product (especially from realgar), or as a ... www.britannica.com
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Pigments through the Ages - Overview - Orpiment - Webexhibits
Brief description of Orpiment: A rich lemon or canary yellow with fair covering power and good chemical stability. It's an arsenic sulfide which naturally ... www.webexhibits.org
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Orpiment Mineral Data - Mineralogy Database
Deep orange-colored orpiment crystal aggregate. Location: Twin Creeks mine, 62 bench, north of Winnemucca, Humboldt County, Nevada. USA. webmineral.com
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Realgar and Orpiment - Arsenic Sulfide Minerals - Geology.com
Orpiment and realgar are arsenic sulfide minerals that are currently used as ores of arsenic. Before their toxicity was realized they were used as pigments, ... geology.com
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Orpiment—The Toxic Stone Called 'Gold Paint' - Natural Pigments
Orpiment is a rich lemon or canary yellow with fair covering power and good chemical stability as a pigment. It is designated as brilliant yellow in Munsell ... www.naturalpigments.eu
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orpent
orpement, orpent obs. ff. orpiment, orpine. Oxford English Dictionary
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Agathodaemon (alchemist)
He described the 'fiery poison' as being formed when a certain mineral (most probably realgar or orpiment) was fused with natron (naturally occurring sodium wrote of how, when he placed a fragment of copper into the solution, the copper turned a deep green hue, lending further validity to the suggestion that orpiment wikipedia.org
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orpment
orpit, orpment see orp, orped, orpiment. Oxford English Dictionary
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