realgar orange
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Realgar — Réalgar Réalgar Catégorie II : sulfures et sulfosels Réalgar, Pochodzenie, Baia Sprie Roumani … Wikipédia en Français
Réalgar — Catégorie II : sulfures et sulfosels[1] Réalgar, Roumanie … Wikipédia en Français
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
réalgar — [ realgar ] n. m. • 1495; reagal mil. XIVe; altér. de l ar. rehj al ghar « poudre de cave; mort aux rats » ♦ Alchim., minér. Sulfure naturel d arsenic (As2S2) de couleur rouge. ● réalgar nom masculin (espagnol rejalgar, de l arabe rahdj al rhār,… … Encyclopédie Universelle
realgar — [rē al′gər] n. [ME < ML, ult. < Ar rahj al ghār, lit., dust of the cave < rahj, dust + al, the + ghār, cave, mine: orig. obtained by mining] a bright orange red, monoclinic mineral, AsS, used in fireworks, paints, etc.; arsenic sulfide … English World dictionary
Orange (couleur) — Pour les articles homonymes, voir Orange. Orange Composantes RVB (r, v, b) … Wikipédia en Français
realgar — /ree al geuhr, gahr/, n. arsenic disulfide, AS2S2, found in nature as an orange red mineral and also produced artificially: used in pyrotechnics. Also called red orpiment. [1350 1400; ME < ML realger Ar rahj al ghar powder of the mine or cave] *… … Universalium
realgar — noun Etymology: Middle English, from Medieval Latin, from Catalan, from Arabic rahj al ghār powder of the mine Date: 15th century an orange red mineral consisting of arsenic sulfide and having a resinous luster … New Collegiate Dictionary
realgar — re•al•gar [[t]riˈæl gər, gɑr[/t]] n. mir an orange red mineral, arsenic sulfide, Asfound in granular and crusty masses and also produced artificially for use in pyrotechnics • Etymology: 1350–1400; ME < ML realger « Ar rahj al ghār powder of… … From formal English to slang
realgar — /riˈælgə/ (say ree alguh) noun arsenic disulphide, As2S2, found native as an orange red mineral and used in pyrotechnics. {Middle English, from Medieval Latin, from Arabic rehj alghār powder of the mine} …
