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An XPS study of the oxidation of pyrite and pyrites in coal
Fuel, 1977Abstract X-ray Photoelectron Spectroscopy (XPS) was used to study mineral, synthetic and coal-associated pyrites, oxidized for various time intervals at low temperatures with humid air or oxygen. This was done to find out if XPS could detect, monitor and clarify pyrite surface-oxidative changes that influence surface-dependent coal-cleaning methods ...
David C. Frost +3 more
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2015
Most people have heard of pyrite, the brassy yellow mineral sometimes known as fool's gold. Pyrite behaves like stone and shines like metal, and its dual nature makes it a source of both metals and sulfur. Despite being the most common sulfide mineral on the earth's surface, pyrite's bright crystals have attracted the attention of many different ...
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Most people have heard of pyrite, the brassy yellow mineral sometimes known as fool's gold. Pyrite behaves like stone and shines like metal, and its dual nature makes it a source of both metals and sulfur. Despite being the most common sulfide mineral on the earth's surface, pyrite's bright crystals have attracted the attention of many different ...
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Preparation of pyritized plant petrifactions: “a plea for pyrite”
Review of Palaeobotany and Palynology, 1973Abstract The opacity and difficulty in preparation and microscopical examination of pyrite and marcasite petrifactions tend to discourage many workers. In recent years, however, techniques have been developed to help the paleobotanist prepare and study these petrifactions.
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Science, 1965
A considerable variety of bacteria and similar microorganisms are present as preserved remains in pyrite samples of Pennsylvanian age obtained from the coal measures of southeastern Ohio. The types observed are similar to the present-day microflora found in stagnant pools of low oxygen and nutrient content.
E G, Ehlerg, D V, Stiles, J D, Birle
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A considerable variety of bacteria and similar microorganisms are present as preserved remains in pyrite samples of Pennsylvanian age obtained from the coal measures of southeastern Ohio. The types observed are similar to the present-day microflora found in stagnant pools of low oxygen and nutrient content.
E G, Ehlerg, D V, Stiles, J D, Birle
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Pyritized Microfossils and Pyrite Framboids: Reply
Geology, 1974Carol W. Allison, Mary A. Moorman
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Pyrite-chlorite and pyrite-biotite relations in sandstones
Sedimentary Geology, 1986Abstract Authigenic euhedral pyrite in feldspathic sandstones of the Visingso Group (Upper Proterozoic, southern Sweden) is observed to be closely associated with authigenic, fine-crystalline, interstitial chlorite and/or sand-sized chlorite or biotite. Microprobe analyses revealed that chlorites which are accompanied by relatively large amounts (≤ -
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