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Gypsum is a soft sulfate mineral composed of calcium sulfate dihydrate, with the chemical formula CaSO 4 ·2H 2 O. [4] It is widely mined and is used as a fertilizer and as the main constituent in many forms of plaster, drywall and blackboard or sidewalk chalk.
A chemical of obscure composition, ostensibly a powerful preventative of tooth decay and invariably referred to as "the miracle ingredient, fraudulin", it is a direct parody on the use of questionably effective "miracle additives" in advertising puffery. Frinkonium The Simpsons: Element, invented by Springfield scientist Professor Frink. Galine
In art, lime plaster is the traditional matrix for fresco painting; the pigments are applied to a thin wet top layer of plaster and fuse with it so that the painting is actually in coloured plaster. In the ancient world, as well as the sort of ornamental designs in plaster relief that are still used, plaster was also widely used to create large ...
Pop art is an art movement that emerged in the United Kingdom and the United States during the mid- to late-1950s. [1] [2] The movement presented a challenge to ...
A chemical formula is a way of presenting information about the chemical proportions of atoms that constitute a particular chemical compound or molecule, using chemical element symbols, numbers, and sometimes also other symbols, such as parentheses, dashes, brackets, commas and plus (+) and minus (−) signs.
A formula from a 1968 US patent consisted of water and a transparent, translucent, or opaque mix of mineral oil, paraffin wax, and carbon tetrachloride. [3] p. 2, line 30 The clear water or mineral oil can optionally be coloured with translucent dyes. Common wax has a density much lower than that of water and would float on top at any temperature.
In the lime industry, limestone is a general term for rocks that contain 80% or more of calcium or magnesium carbonate, including marble, chalk, oolite, and marl.Further classification is done by composition as high calcium, argillaceous (clayey), silicious, conglomerate, magnesian, dolomite, and other limestones. [5]
In the Bible, vermilion is listed as a pigment that was in use for painting buildings during the reign of Shallum the son of Josiah king of Judah, and is named in the book of the prophet Ezekiel as a pigment used in art that portrayed Chaldean men. (Jeremiah 22:11–14, Ezekiel 23:14–17) The vermilion rose is a symbol of the Blessed Virgin Mary.