Dictionary Definition
massicot n : the mineral form of lead monoxide;
in the form of yellow powder it is used as a pigment [syn: massicotite]
User Contributed Dictionary
English
Noun
- lead
monoxide, PbO, obtained as a yellow amorphous powder, the fused
and crystalline form of which is called litharge; lead ocher. It
is used as a pigment; also, lead oxide yellow, as opposed to
red
lead, which is lead
tetroxide Pb3O4.
- Note Massicot is sometimes used by painters, and also as a
drier in the composition of ointments and plasters.
- Quotations
-
- 1952: Besides orpiment, already referred to, one occasionally gets mention of massicot, a yellow lead paint. — L.F. Salzman, Building in England, p. 169.
- Note Massicot is sometimes used by painters, and also as a
drier in the composition of ointments and plasters.
Translations
lead monoxide
- Spanish: masicote
Extensive Definition
Massicot is one of the natural mineral forms of
lead(II)
oxide, PbO. Massicot is the
orthorhombic dimorph of the tetragonal
form of lead oxide, litharge. It forms soft
(Mohs
hardness of 2) yellow to reddish-yellow, earthy, scaley masses
which are very dense, with a specific
gravity of 9.64.
It was first described in 1841 for an occurrence
in Stolberg,
near Aachen, Germany. Massicot is French
for lead oxide.
See also
References
- Palache, C., H. Berman, and C. Frondel (1944) Dana’s system of mineralogy, (7th edition), v. I, 516–517
- Webmineral data
- Mindat with location data
- Mineral data publishing - PDF
massicot in Italian: Massicot
massicot in Slovak: Masikot