1) Alchemical substance 2) An important ore of arsenic 3) Arsenic mineral 4) Arsenic sulfide 5) Arsenic sulfide for pigments 6) Mineral 7) Monoclinic mineral 8) Orange-red mineral
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https://www.crosswordclues.com/clue/realgar
== Occurrence == Realgar most commonly occurs as a low-temperature hydrothermal vein mineral associated with other arsenic and antimony minerals. It also occurs as volcanic sublimations and in hot spring deposits. It occurs in association with orpiment, arsenolite, calcite and barite. It is found with lead, silver and gold ores in Hungary, Bohemia...
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http://en.wikipedia.org/wiki/Realgar
• (n.) Arsenic sulphide, a mineral of a brilliant red color; red orpiment. It is also an artificial product.
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http://thinkexist.com/dictionary/meaning/realgar/
an important ore of arsenic, a red or orange mineral containing both arsenic and sulfur. Typically it is a minor constituent of ore veins in ... [1 related articles]
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http://www.britannica.com/eb/a-z/r/18
Re·al'gar (re*ăl'gẽr)
noun [ French
réalgar , Spanish
rejalgar , Arabic
rahj al ghār powder of the mine.]
(Min.) Arsenic sulphide, a mineral of a brilliant red color; red orpiment. It is also an artificial product.
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http://www.encyclo.co.uk/webster/R/18
Realgar is a sulphide of arsenic found in veins of lead, silver, and gold ores associated with arsenic minerals and stibnite and also occurs as a deposit from hot springs. When mixed with saltpetre and burned it gives a bright white light and was formerly used in fireworks to provide colour. It has the formulae AsS and a relative hardness of 2.
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http://www.probertencyclopaedia.com/browse/HR.HTM
Arsenic sulfide di-
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http://www.translationdirectory.com/glossaries/glossary075.htm
Native arsenic disulphide. Small deposits have been found in all parts of the world, and traces of its use for colouring have come to light on relics from the most primitive civilizations.
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http://www.visual-arts-cork.com/colour-art-glossary.htm
[
n] - a rare soft orange mineral consisting of arsenic sulphide
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http://www.webdictionary.co.uk/definition.php?query=realgar
noun a rare soft orange mineral consisting of arsenic sulphide; an important ore of arsenic
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https://www.encyclo.co.uk/local/20974
(Arsenic Sulfide) Realgar is an oddball among the sulfides. It is one of only a few sulfides that are not metallic or opaque or blandly colored. Its structure is analogous to that of sulfur and resembles sulfur in most respects except for color (the name `
ruby sulfur` has been applied to realgar). Sulfur ha...
Found on
https://www.encyclo.co.uk/local/23719
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