• Thumbnail for Orpiment
    Orpiment, also known as ″yellow arsenic blende″ is a deep-colored, orange-yellow arsenic sulfide mineral with formula As 2S 3. It is found in volcanic...
    19 KB (1,795 words) - 02:52, 14 May 2024
  • Thumbnail for Realgar
    compact, or powdery form, often in association with the related mineral, orpiment (As2S3). It is orange-red in color, melts at 320 °C, and burns with a bluish...
    13 KB (1,104 words) - 19:18, 10 August 2024
  • Thumbnail for Arsenic trisulfide
    yellow solid that is insoluble in water. It also occurs as the mineral orpiment (Latin: auripigmentum), which has been used as a pigment called King's...
    16 KB (1,651 words) - 11:08, 24 August 2024
  • Thumbnail for Arsenic blende
    ore minerals — orpiment and realgar,: 135, 239, 438  in composition — arsenic sulfides. Both of these minerals, realgar and orpiment, have been mined...
    7 KB (958 words) - 17:50, 25 September 2024
  • Thumbnail for Orange (colour)
    Pigments were also made in ancient times from a mineral known as orpiment. Orpiment was an important item of trade in the Roman Empire and was used as...
    66 KB (7,764 words) - 11:08, 4 October 2024
  • Thumbnail for Yellow
    in France has a painting of a yellow horse 17,000 years old. Ochre and orpiment pigments were used to represent gold and skin color in Egyptian tombs,...
    93 KB (10,802 words) - 18:45, 22 September 2024
  • Thumbnail for Arsenic
    'the orpiment', based on Persian zar ("gold") from the word زرنيخ zarnikh, meaning "yellow" (literally "gold-colored") and hence "(yellow) orpiment". It...
    130 KB (14,310 words) - 04:26, 7 October 2024
  • Arsenic sulfide may refer to: Arsenic trisulfide, As2S3, the mineral orpiment Arsenic pentasulfide, As2S5, similar structure to phosphorus pentasulfide...
    792 bytes (75 words) - 03:25, 1 October 2023
  • Thumbnail for Arsenolite
    Commonly found as small octahedra it is white, but impurities of realgar or orpiment may give it a pink or yellow hue. It can be associated with its dimorph...
    3 KB (153 words) - 18:58, 18 January 2024
  • the Five Minerals to a mixture. The Five Minerals are realgar, cinnabar, orpiment, alum, and laminar malachite [五石者, 雄黃, 丹砂, 雌黃, 礬石, 曾青也]. When they have...
    49 KB (6,893 words) - 15:27, 12 July 2024