REALGAR Meaning and
Definition
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Realgar is a naturally occurring mineral compound that belongs to the arsenic sulfide group. With a chemical formula of As4S4, realgar is characterized by its distinct bright orange-red to orange color and a vitreous to resinous luster. It forms as monoclinic crystals or granular aggregates in hydrothermal or low-temperature environments.
In terms of physical properties, realgar is a relatively soft mineral with a Mohs hardness of 1.5 to 2.5. It has a specific gravity of around 3.5 to 3.6, indicating its density compared to water. The brightness and depth of its color often contribute to its use as a pigment in art and traditional eastern medicine.
Historically, realgar has been known and used for various purposes across different cultures. Ancient Egyptians and Romans employed its vivid color in cosmetics and painting. Traditional Chinese medicine utilized realgar for its alleged therapeutic and protective properties. However, modern usage of realgar as a pigment is generally discouraged due to its high levels of toxic arsenic. It is important to handle realgar with caution and avoid ingestion or inhalation of its dust or fumes.
Realgar's vibrant color and fascinating history make it an intriguing mineral, yet its toxicity demands attention and care in its handling and utilization.
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Arsenic disulphide, AS2S2.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
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A mineral, generally of a brilliant red colour, occurring native in various formations in the form of fine prismatic crystals, or massive and disseminated; a similar substance prepared artistically and used as a pigment; known also as red orpiment and red sulphuret of arsenic.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
Common Misspellings for REALGAR
- eealgar
- dealgar
- fealgar
- tealgar
- 5ealgar
- 4ealgar
- rwalgar
- rsalgar
- rdalgar
- rralgar
- r4algar
- r3algar
- rezlgar
- reslgar
- rewlgar
- reqlgar
- reakgar
- reapgar
- reaogar
Etymology of REALGAR
The word "realgar" has its roots in Arabic. It comes from the Arabic term "rahj al-ghar" (راهج الغار), which means "powder of the mine" or "powder of the cave". This is because realgar is a mineral that was historically mined and used as a pigment. From Arabic, the term made its way into Latin as "realgarium" and then into other European languages before becoming the modern English word "realgar".
Similar spelling words for REALGAR
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