realgar yellow
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Realgar — Realgar, α As4S4, is an arsenic sulfide mineral. 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 … Wikipedia
Yellow orpiment — Orpiment Or pi*ment, n. [F., fr. L. auripigmentum; aurum gold + pigmentum pigment. Cf. {Aureate}, {Pigment}, {Orpin}, {Orpine}.] (Chem.) Arsenic sesquisulphide, produced artificially as an amorphous lemon yellow powder, and occurring naturally as … The Collaborative International Dictionary of English
Indian yellow — Indian In di*an (?; 277), a. [From India, and this fr. Indus, the name of a river in Asia, L. Indus, Gr. ?, OPers. Hindu, name of the land on the Indus, Skr. sindhu river, the Indus. Cf. {Hindu}.] [1913 Webster] 1. Of or pertaining to India… … The Collaborative International Dictionary of English
Arsenic — (pronEng|ˈɑrsənɪk) is a chemical element that has the symbol As and atomic number of 33. Arsenic was first documented by Albertus Magnus in 1250cite book |last=Emsley |first=John |title=Nature s Building Blocks: An A Z Guide to the Elements |year … Wikipedia
color — Synonyms and related words: Adrianople red, Alice blue, Arabian red, Argos brown, Bordeaux, Brunswick black, Brunswick blue, Burgundy, Capri blue, Cassel yellow, Chinese blue, Chinese white, Claude tint, Cologne brown, Columbian red, Congo rubine … Moby Thesaurus
pigment — Synonyms and related words: Adrianople red, Alice blue, Arabian red, Argos brown, Bordeaux, Brunswick black, Brunswick blue, Burgundy, Capri blue, Cassel yellow, Chinese blue, Chinese white, Claude tint, Cologne brown, Columbian red, Congo rubine … Moby Thesaurus
Orpiment — General Category Sulfide mineral Chemical formula … Wikipedia
arsenic — n. /ahr seuh nik, ahrs nik/; adj. /ahr sen ik/, n. 1. a grayish white element having a metallic luster, vaporizing when heated, and forming poisonous compounds. Symbol: As; at. wt.: 74.92; at. no.: 33. 2. See arsenic trioxide. 3. a mineral, the… … Universalium
nitrogen group element — ▪ chemical elements Introduction any of the chemical elements that constitute Group Va of the periodic table (see Figure >). The group consists of nitrogen (N), phosphorus (P), arsenic (As), antimony (Sb), and bismuth (Bi). The elements share… … Universalium
Sulfide minerals — ▪ Table Sulfide minerals name colour lustre Mohs hardness specific gravity habit or form fracture or cleavage refractive indices or polished section data crystal system argentite blackish lead gray metallic 2–2 1/2 7.2–7.4 cubic or octahedral… … Universalium
