Search results

• Bauxite
  ...re usually a mottled reddish brown but can also be white, gray, yellow, or red. They typically contain 30-75% [[aluminum oxide]]. In antiquity, bauxite wa
  2 KB (305 words) - 11:53, 2 May 2022
• Bloodstone
  A semiprecious stone composed of dark green [[chalcedony]] with flecks of red [[jasper]] or [[hematite]] that were thought to resemble drops of blood. Bl * Wikipedia: [https://en.wikipedia.org/wiki/Heliotrope_(mineral) Heliotrope (mineral)] Accessed Dec 2022
  2 KB (310 words) - 12:22, 19 December 2022
• Chromium trioxide
  Dark, violet-red deliquescent crystals. Chromium trioxide is normally used as an aqueous sol Soluble in water, ethanol, mineral acids.
  3 KB (328 words) - 15:31, 29 May 2022
• Cobalt violet, light
  ...ro (It.); cobalt violet (licht) (Ned.); violeta de cobalto, claro (Port.); red cobalt; cobalt bloom; ; pale cobalt violet
  2 KB (330 words) - 13:11, 30 May 2022
• Gypsum
  ...mes for carved ornamental objects and statuary. Gypsum is a commonly found mineral associated with sedimentary rock and deposits from seas, lakes, and volcani native calcium sulfate; alabaster; selenite; terra alba; satinite; mineral white; satin spar; light spar; sulfate of lime; puritan filler; crown fille
  6 KB (808 words) - 13:18, 24 January 2023
• Chalk
  ...e varieties of chalk contain up to 99 percent [[calcium carbonate]] as the mineral [[calcite]]. Chalk was formed in the Cretaceous period and occurs naturally File:Red chalk - 500x.jpg|Red chalk
  5 KB (692 words) - 11:20, 28 May 2022
• Copper resinate
  ...per salts such as [[copper acetate]], [[copper hydroxide]], [[Copper oxide red|copper oxide]], or [[basic copper carbonate]] (Kuhn 1993). Soluble in ether, oils, and many organic solvents (benzene, chloroform, mineral spirits, etc.). Insoluble in water.
  2 KB (343 words) - 15:16, 4 July 2022
• Sodalite
  A blue, glassy mineral of sodium aluminum silicate that has been used as a [[gemstone|gemstone]] a * Fluorescence = patchy orange or red in LW and SW; may have yellowish phosphorescence
  3 KB (352 words) - 14:05, 19 December 2022
• Arsenic
  ...undance of arsenic in the earth's crust is 1.8 ppm. It is found as a trace mineral in meteorites. Arsenic was known as a poison in antiquity and the elemental Arsenic is on the ILFI [[Red list of Materials|Red list]] of building materials.
  4 KB (512 words) - 14:40, 3 November 2023
• Vanadium
  ...sed as a target material for x-rays. Vanadium salts are used as yellow and red colorants in [[glass|glass]] and [[glaze|glazes]], as [[ultraviolet%20absor Soluble in hot mineral acids. Insoluble in water.
  3 KB (348 words) - 14:16, 23 June 2022
• Caulking (sealants)
  ...red in the 50s, contained [[talc]], calcium carbonate, [[polybutylene]], [[mineral spirits]], and adhesion promoters. The first [[acrylic resin|acrylic]] seal | 10-15% [[linseed oil]] with [[calcium carbonate]], [[Red lead|red]] or [[white lead]] and sometimes other inorganic fillers ([[talc]], [[alu
  7 KB (841 words) - 10:42, 27 February 2023
• Caulking materials, generic
  ...red in the 50s, contained [[talc]], calcium carbonate, [[polybutylene]], [[mineral spirits]], and adhesion promoters. The first [[acrylic resin|acrylic]] seal | 10-15% [[linseed oil]] with [[calcium carbonate]], [[Red lead|red]] or [[white lead]] and sometimes other inorganic fillers ([[talc]], [[alu
  7 KB (843 words) - 09:04, 8 May 2023
• Lead antimonate yellow
  ...ther pigments, such as [[cadmium yellow]], [[zinc white]], and [[Venetian red]]. Naples yellow is lightfast and chemically stable, but may darken with hi Naples yellow; Pigment Yellow 41; CI 77588; bindheimite (mineral); jaune d'antimoine (Fr.); antimonate de plomb jaune (Fr.); jaune de Naples
  6 KB (824 words) - 10:07, 16 September 2022
• Aventurine
  2) A [[quartz|quartz]] mineral that contains shiny flecks of [[mica|mica]] that is also known as sunstone. ...incorporated rectangular pieces of inlaid brass wire in a green, black, or red synthetic lacquer finish (see also [[Vernis%20Martin|vernis martin]]).
  3 KB (347 words) - 10:45, 23 December 2022
• More on the data
  ...r each colorant. EEM was used to identify some organic yellow and and most red colorants. For this research, an Agilent Cary Eclipse Spectrometer with a f |<small>Excitation and emission maxima<br>of the three red colorants</small>
  11 KB (1,817 words) - 02:21, 15 April 2024
• Lead white
  ...sic lead carbonate occurs in nature as the mineral hydrocerussite, but the mineral form was not commonly used as a pigment; instead lead white has been prepar basic lead carbonate; Pigment White 1; CI 77597; hydrocerussite (mineral); plomo blanco (Esp.); céruse (Fr.); blanc de plomb (Fr.); blanc d'argent
  6 KB (863 words) - 14:31, 10 April 2024
• Stannic oxide
  ...ucent milky color. Tin dioxide reacts with chrome oxides to produce a ruby red color in glass and glazes. As a paint pigment, [[Tin white]] was also used
  3 KB (441 words) - 07:58, 19 May 2023
• Amazonite
  A pale green, opaque [[microcline|microcline]] mineral. Amazonite derives its color from traces of lead and crystalline water (Ast * Color = colorless, white, pale-yellow, brick-red, or green
  3 KB (410 words) - 11:28, 23 December 2022
• Clay
  ...ll amounts of other minerals can change the color (white, yellow, brown or red) and texture of the clays. When pure, clay is a fine, white, amorphous powd
  3 KB (412 words) - 11:31, 30 May 2022
• Jade
  ...e ranging in color from pale to dark green. Jade is composed of either the mineral [[jadeite]] or [[nephrite]]. Both are hard enough to scratch glass. Though * Dyed jade appears red when examined with a Chelsea filter.
  3 KB (434 words) - 13:21, 21 September 2022

View (previous 20 | next 20) (20 | 50 | 100 | 250 | 500)