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- Realgar abstract "Realgar, α-As4S4, is an arsenic sulfide mineral, also known as "ruby sulphur" or "ruby of arsenic". It is a soft, sectile mineral occurring in monoclinic crystals, or in granular, compact, or powdery form, often in association with the related mineral, orpiment (As2S3). It is orange-red in colour, melts at 320 °C, and burns with a bluish flame releasing fumes of arsenic and sulfur. Realgar is soft with a Mohs hardness of 1.5 to 2 and has a specific gravity of 3.5. Its streak is orange colored. It is trimorphous with alacranite and pararealgar.Its name comes from the Arabic rahj al-ġār (رهج الغار, "powder of the mine"), via Catalan and Medieval Latin, and its earliest record in English is in the 1390s.".
- Realgar thumbnail Realgar-229713.jpg?width=300.
- Realgar wikiPageExternalLink min-3107.html.
- Realgar wikiPageExternalLink search=%22American%20Mineralogist%2C%20Volume%2077%2C%20pages%201266-1274%2C%20%22.
- Realgar wikiPageExternalLink search=%22American%20Mineralogist%2C%20Volume%2077%2C%20pages%201266-1274%2C%20%22.
- Realgar wikiPageID "875336".
- Realgar wikiPageRevisionID "593326955".
- Realgar 2v "40".
- Realgar birefringence "δ = 0.166".
- Realgar caption "Realgar crystals".
- Realgar category Sulfide_minerals.
- Realgar cleavage "Good on {010}; less so on {101}, {100}, {120}, and {110}".
- Realgar color "Red to yellow-orange; in polished section, pale gray, with abundant yellow to red internal reflections".
- Realgar diaphaneity "Transparent".
- Realgar dispersion "r > v, very strong".
- Realgar formula "As4S4 or AsS".
- Realgar gravity "3.56".
- Realgar habit "Prismatic striated crystals; more commonly massive, coarse to fine granular, or as incrustations".
- Realgar hasPhotoCollection Realgar.
- Realgar luster "Resinous to greasy".
- Realgar mohs "1.5".
- Realgar name "Realgar".
- Realgar opticalprop "Biaxial".
- Realgar other "Disintegrates on long exposure to light to a powder composed of pararealgar or arsenolite and orpiment.".
- Realgar pleochroism "Nearly colorless to pale golden yellow".
- Realgar refractive "nα = 2.538".
- Realgar refractive "nβ = 2.684".
- Realgar refractive "nγ = 2.704".
- Realgar streak "Red-orange to red".
- Realgar strunz "2".
- Realgar symmetry "Monoclinic 2/m".
- Realgar system "Monoclinic prismatic".
- Realgar tenacity "Sectile, slightly brittle".
- Realgar twinning "Contact twins on {100}".
- Realgar unitCell "a = 9.325 Å,".
- Realgar unitCell "b = 13.571 Å,".
- Realgar unitCell "c = 6.587 Å,".
- Realgar unitCell "β = 106.43°; Z=16".
- Realgar subject Category:Alchemical_substances.
- Realgar subject Category:Arsenic_minerals.
- Realgar subject Category:Monoclinic_minerals.
- Realgar subject Category:Poisonous_minerals.
- Realgar subject Category:Sulfide_minerals.
- Realgar type ChemicalSubstance.
- Realgar type Mineral.
- Realgar type ChemicalObject.
- Realgar type Thing.
- Realgar comment "Realgar, α-As4S4, is an arsenic sulfide mineral, also known as "ruby sulphur" or "ruby of arsenic". It is a soft, sectile mineral occurring in monoclinic crystals, or in granular, compact, or powdery form, often in association with the related mineral, orpiment (As2S3). It is orange-red in colour, melts at 320 °C, and burns with a bluish flame releasing fumes of arsenic and sulfur. Realgar is soft with a Mohs hardness of 1.5 to 2 and has a specific gravity of 3.5. Its streak is orange colored.".
- Realgar label "Realgaar".
- Realgar label "Realgar".
- Realgar label "Realgar".
- Realgar label "Realgar".
- Realgar label "Realgar".
- Realgar label "Realgar".
- Realgar label "Rejalgar".
- Realgar label "Réalgar".
- Realgar label "Реальгар".
- Realgar label "رهج الغار".
- Realgar label "雄黄".
- Realgar label "鶏冠石".
- Realgar sameAs Realgar.
- Realgar sameAs Realgar.
- Realgar sameAs Σανδαράχη_(ερυθρά).
- Realgar sameAs Rejalgar.
- Realgar sameAs Réalgar.
- Realgar sameAs Realgar.
- Realgar sameAs 鶏冠石.
- Realgar sameAs Realgaar.
- Realgar sameAs Realgar.
- Realgar sameAs Realgar.
- Realgar sameAs m.03krq6.
- Realgar sameAs Q109746.
- Realgar sameAs Q109746.
- Realgar wasDerivedFrom Realgar?oldid=593326955.
- Realgar depiction Realgar-229713.jpg.
- Realgar isPrimaryTopicOf Realgar.
- Realgar name "Realgar".
