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• Pyrope IR-ATR R040159.png Source: University of Arizona Mineral Museum 4309 [view label] Description: Deep red crystal fragments (650 × 250 (8 KB)) - 16:06, 2 December 2022

• Pyrope raman RRUFF R040159.png Source: University of Arizona Mineral Museum 4309 [view label] Description: Deep red crystal fragments (650 × 250 (8 KB)) - 16:08, 2 December 2022

• Almandine Raman RRUFF R040079.png Source: University of Arizona Mineral Museum 13736 [view label] Description: Dark red dodecahedral crystal (650 × 250 (8 KB)) - 15:06, 2 December 2022

• Almandine IR-ATR R040079.png Source: University of Arizona Mineral Museum 13736 [view label] Description: Dark red dodecahedral crystal (650 × 250 (9 KB)) - 15:03, 2 December 2022

• Crocoite
  ...r use as a pigment. The element chromium was, however, discovered in this mineral in 1787. About 1820, after the development of commercial production of chr * Streak = orange-red.
  898 bytes (117 words) - 14:05, 7 July 2022
• Mercuric sulfide, black
  ...hloride in hydrochloric acid. Black mercuric sulfide, also called ethiops mineral, is used as a pigment in paints, rubber, and horn. ethiops mineral; black sulfuret oxide of mercury; sulfuro de mercurio negro (Esp.); sulfure
  1 KB (165 words) - 13:38, 18 October 2022
• Cuprite
  ...n copper and copper alloys. It has been used as a colorant to produce ruby red glass since the first and second millennia BCE. See also [[copper oxide red]].
  2 KB (256 words) - 12:34, 14 July 2022

• Spinel Raman RRUFF R050183.png Description: Red crystal in calcite, associated with yellowish-green clinohumite, R050183 Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis (650 × 250 (19 KB)) - 15:46, 11 December 2022

• Pyrope R050112 Sample Photo 23436 M.jpg Description: Dark red crystal fragment Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis (1,024 × 768 (354 KB)) - 16:11, 2 December 2022

• Silver antimony sulfide
  ...as pyrogyrite and it was also called red silver, ruby silver ore and dark red silver ore. red silver; pyrogyrite
  692 bytes (95 words) - 10:26, 31 May 2022
• Nickel dimethylglyoxime
  ...ht red crystalline powder. Nickel dimethylglyoxime is used as a lightfast red pigment in paints, varnishes, cellulosics, and cosmetics. Soluble in dilute mineral acids and absolute ethanol. Insoluble in water, acetic acid and ammonia.
  793 bytes (99 words) - 13:26, 23 August 2022
• Minium
  A mineral composed of ...rom minium. Even so, the mineral name minium has been used to refer to the red lead pigment. From Pliny's time to the 17th century, the name minium was al
  3 KB (371 words) - 14:07, 17 October 2022

• Tenorite Raman RRUFF R120076.png Description: Dark red crystals, some are triply twinned, platy ones are doubly twinned, and elong Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction. (650 × 250 (8 KB)) - 11:33, 8 December 2022

• Orange mineral
  ...sition as red lead oxide, it has a different crystalline structure. Orange mineral is not sufficiently lightfast for use as an artist pigment. It is used in i laranja mineral (Port.); orange lead
  2 KB (209 words) - 14:03, 26 July 2022
• Orange pigments
  ...idered a secondary color in the traditional RYB color wheel made by mixing red and yellow. An average orange color is represented by the following color * oxides ([[Mars%20orange|Mars orange]], [[orange mineral|mineral orange]])
  1 KB (141 words) - 14:11, 26 July 2022
• Lead tetroxide
  [[File:25_Red_lead_500X.jpg|thumb|Red lead at 500x transmitted light]] [[File:25_Red_lead_500X_pol.jpg|thumb|Red lead at 500x polarized light]]
  3 KB (432 words) - 10:30, 7 October 2022
• American vermilion
  ...|red lead]], [[orange%20mineral|orange mineral]], or [[chrome%20red|chrome red]]. Mayer states that American vermilion is not permanent for artists' paint ...77601; vermiglione americano (It.); vermilionette; Chinese scarlet; chrome red;
  1 KB (170 words) - 13:07, 26 April 2022
• Pyragyrite
  ...Idaho). Pyragyrite was also called red silver, ruby silver ore, and dark red silver ore prior to the 1800s. silver antimony sulfide; red silver; ruby silver ore; dark red silver ore
  1 KB (179 words) - 16:33, 22 October 2022
• Fluorescent minerals
  ...e. Because of the potential for many varying factors, the fluorescence of mineral is not typically used for its identification. Heating a mineral to temperatures as low as 50-200 degrees Celsius may also produce the emiss
  3 KB (408 words) - 12:06, 25 July 2022
• Inorganic acid
  ...sphoric]] acids. Inorganic acids change the color of blue litmus paper to red, dissolve many metals, and react violently with bases to form salts. They mineral acid
  819 bytes (115 words) - 16:03, 20 September 2022

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