pyrite

How To Use pyrite In A Sentence

• Copper is known to be taken into solution as copper sulphate at the surface, and to be redeposited as chalcocite where these sulphate solutions come in contact with chalcopyrite or pyrite below. The Economic Aspect of Geology
• bladed arsenopyrite
• In the periphery of the oxidation, copper mineralization occurs as chalcopyrite, bornite, tennantite and mispickel.
• A dressed product of copper works in South America, consisting of grains of native copper mixed with pyrite, chalcopyrite, mispickel, and earthy minerals.
• For example, microcrystalline pyrite is ubiquitous on the inner surface of cell walls, within lignified cell walls and in the middle lamella.
• In all appearance it is impregnated with nitre, if not with something more mischievous: we know that mundic, or pyrites, very often contains a proportion of arsenic, mixed with sulphur, vitriol, and mercury. Travels through France and Italy
• The chief source of the arsenic of commerce is arsenical pyrites, or mispickel, which contains about 45 per cent. of arsenic (As). A Text-book of Assaying: For the Use of Those Connected with Mines.
• Iron likewise combines with a considerable variety of substances other than oxygen; and some of these compounds, as for instance iron carbonate (siderite), iron silicate (chamosite, glauconite, etc.), and iron sulphide (pyrite), are locally mined as iron ores. The Economic Aspect of Geology
• ~ Much of the copper of commerce is made from chalcopyrite and bornite, and these ores are more difficult to work. An Elementary Study of Chemistry
• This may be related to the presence of relatively large, probably late-diagenetic pyrite clusters in the bituminous limestones, whereas smaller framboids and crystals predominate in the black shales.