Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of pyrites is as below...

Brat :: Brat (n.) A thin bed of coal mixed with pyrites or carbonate of lime.

Pyritiferous :: Pyritiferous (a.) Containing or producing pyrites.

Mundic :: Mundic (n.) Iron pyrites, or arsenical pyrites; -- so called by the Cornish miners..

Lav/sium :: Lav/sium (n.) A supposed new metallic element. It is said to have been discovered in pyrites, and some other minerals, and to be of a silver-white color, and malleable..

Gossan :: Gossan (n.) Decomposed rock, usually reddish or ferruginous (owing to oxidized pyrites), forming the upper part of a metallic vein..

Pyrite :: Pyrite (n.) A common mineral of a pale brass-yellow color and brilliant metallic luster, crystallizing in the isometric system; iron pyrites; iron disulphide..

Stanno- :: Stannite (n.) A mineral of a steel-gray or iron-black color; tin pyrites. It is a sulphide of tin, copper, and iron..

Alum Shale :: Alum shale () A variety of shale or clay slate, containing iron pyrites, the decomposition of which leads to the formation of alum, which often effloresces on the rock..

Copperas :: Copperas (n.) Green vitriol, or sulphate of iron; a green crystalline substance, of an astringent taste, used in making ink, in dyeing black, as a tonic in medicine, etc. It is made on a large scale by the oxidation of iron pyrites. Called also ferrous sulphate..

Marcasite :: Marcasite (n.) A sulphide of iron resembling pyrite or common iron pyrites in composition, but differing in form; white iron pyrites..

Magistral :: Magistral (n.) Powdered copper pyrites used in the amalgamation of ores of silver, as at the Spanish mines of Mexico and South America..

Pyrites :: Pyrites (n.) A name given to a number of metallic minerals, sulphides of iron, copper, cobalt, nickel, and tin, of a white or yellowish color..

Pyritize :: Pyritize (v. t.) To convert into pyrites.

Pyritical :: Pyritical (a.) Of or pertaining to pyrites; consisting of, or resembling, pyrites..

Bisulphide :: Bisulphide (n.) A sulphide having two atoms of sulphur in the molecule; a disulphide, as in iron pyrites, FeS2; -- less frequently called bisulphuret..

Pyrites :: Pyrites (pl. ) of Pyrit.

Firestone :: Firestone (n.) Iron pyrites, formerly used for striking fire; also, a flint..

Pyritohedral :: Pyritohedral (a.) Like pyrites in hemihedral form.

Mispickel :: Mispickel (n.) Arsenical iron pyrites; arsenopyrite.

Sulphur :: Sulphur (n.) A nonmetallic element occurring naturally in large quantities, either combined as in the sulphides (as pyrites) and sulphates (as gypsum), or native in volcanic regions, in vast beds mixed with gypsum and various earthy materials, from which it is melted out. Symbol S. Atomic weight 32. The specific gravity of ordinary octohedral sulphur is 2.05; of prismatic sulphur, 1.96..

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