an assortment of a metal with its sulfides, from smelting the sulfide ores of copper, lead, or nickel.
A decorative border around a photo
A background, frequently coated or created with computer systems
The molten steel sulfide phases usually formed during smelting of copper, nickel, along with other base metals
A partly decreased copper sulphide, obtained by alternately roasting and melting copper ore in dividing the material from associated metal ores, and called coarse steel, fine metal, etc., based on the grade of fineness. Externally its darkish or black, but on a fresh surface is yellowish or bronzy in color.
a-dead or dull finish, as in gilding where in fact the gold leaf is not burnished, or perhaps in artwork where the area is intentionally deprived of gloss.
In metallurgy, a product for the smelting of sulphureted ores, obtained along the way which after that employs the roasting.
the home of getting little if any comparison; lacking features or gloss
an assortment of sulfides that forms whenever sulfide material ores are smelted