Seven samples of black shale and six samples of pyrite
were collected from the Walls Island and Byram members of the Lockatong Formation in the Nursery and Titusville cores of the Newark basin.
Thousands of houses across the country are thought to be affected by pyrite
For me, the truly surprising result is that pyrite
weathering and burial appear to be such important processes in the sulfur cycle throughout all of Earth's history.
One specimen found in December 2005 has one side of the perimorph entirely composed of pyrite
crystals (combining the cube and pyritohedron forms); the remaining sides of the perimorph are formed by a thin quartz layer.
Hence, if the flux of oxygen consumption by pyrite
oxidation is known then the rate of acid production can be estimated.
A note on prospecting of Amjhore pyrite
, Rohtas district, Bihar with discussion on the origin of the deposits, Ind Minerals 31:8-22.
When exposed to atmosphere and water, pyrite
reacts with oxygen to form sulfuric acid, which, in turn, liberates iron ions.
This type of pyrite
may have been formed deep within the earth at pressures and temperatures at which the icosahedral crystalline form is stable, says Cahn.
Properties in Dublin City, Fingal and counties Meath, Kildare and Offaly were identified as being riddled by pyrite
, which causes cracks and subsidence.
Dundee Precious Metals is to sell to China's Xiangguang Copper Co up to 200,000 tons of pyrite
concentrate per year to, to be produced in Bulgaria, the company announced.
We suggest that the jump in chromium levels was triggered by the oxidation of the mineral pyrite
(fool's gold) on land," said Konhauser.