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Pyroxene
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Jeffersonite - Wikipedia, the free encyclopedia
en.wikipedia.org/wiki/Jeffersonite
Jeffersonite is a dark green pyroxene mineral, a manganese zinc enriched variety of augite (Ca(Mn,Zn,Fe)Si2O6), sometimes compared to aegirine. Jeffersonite ... |
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The pyroxene minerals are inosilicates of the general formula XY(Si, Al)2O6. ... sodium, iron+2 and magnesium and more rarely zinc, manganese and lithium.
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Nov 7, 2011 ... The pyroxenes are a group of important rock-forming silicate ... sodium, iron+2, and magnesium, and more rarely zinc, manganese, and lithium, ...
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It is the most widespread member of the pyroxene group, and it frequently alters to many other ... Occasionally with zinc, manganese, and titanium impurities.
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Master guide to pictures of rock-forming, accessory, and rare or ...
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Major reviews of zinc skarn deposits include Einaudi et al. ... In some deposits, the pyroxene:garnet ratio and the manganese content of pyroxene increase ...
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Pyroxene - (pī´rŏksēn), name given to members of a group of widely ... iron, and calcium, often with aluminum, sodium, lithium, manganese, or zinc occur as X in ...
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new manganese pyroxene; Since then the same mineral has been found to occur at ... ties: Bohemia mining district, Lane County, Oregon; at the Empire Zinc ...
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Jan 8, 2012 ... Jeffersonite is a dark green pyroxene mineral, a manganese zinc enriched variety of augite (Ca(Mn,Zn,Fe)Si 2 O 6), sometimes compared to ...
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