Carbonia is a town in the province of Carbonia-Iglesias, Sardinia, Italy. It is located at around 39°10′2″N, 8°31′20″E. Carbonia-Iglesias is the name of a proposed new province in the autonomous region of Sardinia, Italy (Regional Law No. ... Sardinia [[]] (Sardegna in Italian, Sardigna, Sardinna or Sardinnia in the Sardinian language, is the second largest island in the Mediterranean Sea (Sicily is the largest), between Italy, Spain and Tunisia, south of Corsica. ...
The Carbonia process can be varied to an extent to have a little bit of a "blueish" cast to it, but a lot of that depends on the final treatment given to the steel before blueing, and in any event, the final color is still very close to fl.
The barrel is rust blued, the receiver is Carbonia blued, and the extractor is nitre blued.
Carbonia blueing, developed in the United States by the American Gas Furnace Co., is a machine blueing process, in which a gas furnace is used.