Bice, from the French ''bis'', originally meaning dark-coloured, is a

green Green is the color between cyan and yellow on the visible spectrum. It is evoked by light which has a dominant wavelength of roughly 495570 Nanometre, nm. In subtractive color systems, used in painting and color printing, it is created by ...

blue Blue is one of the three primary colours in the RYB colour model (traditional colour theory), as well as in the RGB (additive) colour model. It lies between violet and cyan on the spectrum of visible light. The eye perceives blue when obs ...

pigment A pigment is a colored material that is completely or nearly insoluble in water. In contrast, dyes are typically soluble, at least at some stage in their use. Generally dyes are often organic compounds whereas pigments are often inorganic compo ...

. In French the terms ''vert bis'' and ''azur bis'' mean dark green and dark blue respectively. Bice pigments were generally prepared from basic

copper Copper is a chemical element with the symbol Cu (from la, cuprum) and atomic number 29. It is a soft, malleable, and ductile metal with very high thermal and electrical conductivity. A freshly exposed surface of pure copper has a pinkis ...

carbonate A carbonate is a salt of carbonic acid (H2CO3), characterized by the presence of the carbonate ion, a polyatomic ion with the formula . The word ''carbonate'' may also refer to a carbonate ester, an organic compound containing the carbonate g ...

s, but sometimes

ultramarine Ultramarine is a deep blue color pigment which was originally made by grinding lapis lazuli into a powder. The name comes from the Latin ''ultramarinus'', literally 'beyond the sea', because the pigment was imported into Europe from mines in Afgh ...

or other pigments were used.

Historic usage

In 1522 a stone cross with gilt lead stars was erected at the Bullstake in

Canterbury Canterbury (, ) is a City status in the United Kingdom, cathedral city and UNESCO World Heritage Site, situated in the heart of the City of Canterbury local government district of Kent, England. It lies on the River Stour, Kent, River Stour. ...

, and painted with bice and gilded by Florence the painter. The bice cost 6 shillings the pound. Jo Kirby of the

National Gallery London The National Gallery is an art museum in Trafalgar Square in the City of Westminster, in Central London, England. Founded in 1824, it houses a collection of over 2,300 paintings dating from the mid-13th century to 1900. The current Director of ...

notes the occurrence of the pigment ''bice'' in three grades in an account of Tudor painting at

Greenwich Palace Greenwich ( , ,) is a town in south-east London, England, within the ceremonial county of Greater London. It is situated east-southeast of Charing Cross. Greenwich is notable for its maritime history and for giving its name to the Greenwich ...

in 1527. In this case, the three grades indicate the use of the mineral

azurite Azurite is a soft, deep-blue copper mineral produced by weathering of copper ore deposits. During the early 19th century, it was also known as chessylite, after the Type locality (geology), type locality at Chessy, Rhône, Chessy-les-Mines near ...

rather than a manufactured blue copper carbonate. Similarly, ''green bice'' in other 16th-records may sometimes have been the mineral

malachite Malachite is a copper carbonate hydroxide mineral, with the formula Cu2CO3(OH)2. This opaque, green-banded mineral crystallizes in the monoclinic crystal system, and most often forms botryoidal, fibrous, or stalagmitic masses, in fractures ...

. Ian Bristow, a historian of paint, concluded that the pigment ''blue bice'' found in records of British interior-decoration until the first half of the 17th century was azurite. The expensive natural mineral azurite was superseded by manufactured ''blue verditer''. The color is also referenced in Edith Nesbit's novel ''The Treasure Seekers'': "...Alice looked up from her painting. She was trying to paint a fairy queen's frock with green bice, and it wouldn't rub. There is something funny about green bice. It never will rub off; no matter how expensive your paintbox is-and even boiling water is very little use. She said, ‘Bother the bice’!..."Chapter 9 of "The Treasure Seekers" by E.Nesbit

References

Pigments Inorganic pigments

bice Bice, from the French ''bis'', originally meaning dark-coloured, is a green or blue pigment. In French the terms ''vert bis'' and ''azur bis'' mean dark green and dark blue respectively. Bice pigments were generally prepared from basic copper carb ...

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