Concept information
Preferred term
bleaching
Type
-
owl:NamedIndividual
Definition
- Gain in value due to chemical weatheringof minerals (e.g. reduction of iron and manganesecompounds) or extraction of coloring matter (leaching, washingout), or loss of polish, generally very superficial. Dark andbright color marbles often show bleaching as a result of exposureto weather. [ICOMOS-ISCS] (en)
Broader concept
- discolouration (en)
Entry terms
- fading (en)
Note
- A chromatic change manifestedas a whitening of the constituent materials; tobecome white over time. [EwaGlos] (en)
In other languages
-
zbělení
Czech
-
závoj
-
zesvětlení
-
décoloration
French
-
German
-
Ausbleichen
-
Bleichen
-
Entfärbung
-
Verblassen
URI
https://hist-arch-vocab.org/bvha#c_a5f5496d
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