oil blue

oil blue

[′ȯil ′blü]
(inorganic chemistry)
Violet-blue copper sulfide pigment used in varnishes.
References in periodicals archive ?
The scientists dyed the oil blue to make it stand out.
Then we have "The Crude Oil Blues" by Jerry Reed, included because domestic drillers are ramping up their calls for the repeal of U.S.
The Regional Perspective; Malay Palm Oil Blues Spread To Africa: Apart from serious political problems in Indonesia and relatively less serious risks in neighbouring Malaysia, corruption emanating from socio-economic opportunities in these and other South-East Asian countries has spread to other poorer parts of the world.