Calx
Calx is a substance formed from an ore or mineral that has been heated.[1]
Calx, especially of a metal, is now known as an oxide. According to the obsolete phlogiston theory, the calx was the true elemental substance, having lost its phlogiston in the process of combustion.
"Calx" is also sometimes used in older texts on artist's techniques to mean calcium oxide.
Etymology
Calx is Latin for chalk or limestone, from the Greek χάλιξ (khaliks, “pebble”). It is not to be confused with the Latin homonym meaning heelbone (or calcaneus in modern medical Latin), which has an entirely separate derivation.
In popular culture
- UK electronic music artist Aphex Twin named four of his tracks after differently coloured calxes (green, yellow, blue and red).
gollark: https://www.youtube.com/watch?v=xYOhCd7Ki8A
gollark: And yet:
gollark: This is easy. Just insert the complement of your set of beliefs.
gollark: 'Tis altruism.
gollark: You know downloading more RAM? The opposite.
References
- "calx | Definition of calx in English by Oxford Dictionaries". Oxford Dictionaries | English. Retrieved 2017-12-28.
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