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Jul 13, 2009 ... Iddingsite is an alteration of olivine that consists of a mixture of clay minerals, iron oxides and ferrihydrides. Iddingsite forms from the ...
en.wikipedia.org/wiki/Iddingsite - 33k - Similar pages
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Comments: Red iddingsite with green olivine. Iddingsite alteration of olivine commonly seen in thin-sections is actually a fine-grained mixture of ...
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Red iddingsite with green olivine. Iddingsite alteration of olivine commonly seen in thin-sections is actually a fine-grained mixture of ...
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A common alteration product of Olivine , often observed in thin sections. A mixture of clay minerals (chlorite group, smectite group), iron oxides and ...
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and physical properties of the mineral iddingsite, MgO.Fe2O3.3SiO2. ... This claim is confirmed by the manner of occurrence of iddingsite in ...
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Study of iddingsite samples from New Mexico and Colorado by the *-ray powder ... subsequently the composition and origin of iddingsite were discussed by ...
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Nov 8, 2001 ... Iddingsite is a mixture of orthopyroxene, maghemite, hematite, cristobalite, and amorphous silica that is formed from olivine by weathering ...
gsa.confex.com/gsa/2001AM/finalprogram/abstract_... - 5k - Similar pages
http://gsa.confex.com/gsa/2001AM/finalprogram/abstract_27659.htm
iddingsite ( ′idiŋ′zīt ) ( mineralogy ) A reddish-brown mixture of silicates, forming patches in basic igneous.
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“iddingsite” to this alteration product based on these optical and chemical characteristics .... indicate that the alteration of olivine to iddingsite in- ...
meteorites.wustl.edu/abstracts/lpsc34/a_l03l01.pdf - Similar pages
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The Lafayette meteorite contains abundant iddingsite, a fine-grained intergrowth of smectite clay, ferrihydrite, and ionic salt minerals. ...
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