Fengchengite
Fengchengite is a rare mineral of the eudialyte group with the formula Na12[]3(Ca,Sr)6Fe33+Zr3Si(Si25O73)(H2O,OH)3(OH,Cl)2. The formula is simplified as it does not show the presence of cyclic silicate groups. When compared to other minerals of the group, fengchengite characterizes in the presence of ferric iron (thus similar to ikranite, mogovidite and feklichevite) and essential, site-dominating vacancies. The mineral was discovered in the Saima complex near Fengcheng city in China - hence its name.
primaryTopic
Fengchengite
Fengchengite is a rare mineral of the eudialyte group with the formula Na12[]3(Ca,Sr)6Fe33+Zr3Si(Si25O73)(H2O,OH)3(OH,Cl)2. The formula is simplified as it does not show the presence of cyclic silicate groups. When compared to other minerals of the group, fengchengite characterizes in the presence of ferric iron (thus similar to ikranite, mogovidite and feklichevite) and essential, site-dominating vacancies. The mineral was discovered in the Saima complex near Fengcheng city in China - hence its name.
has abstract
Fengchengite is a rare mineral ...... ity in China - hence its name.
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Wikipage page ID
49,596,695
Wikipage revision ID
739,241,410
category
class
Hexagonal scalenohedral
formula
Na12[]36Fe33+Zr3Si32
symmetry
system
unit cell
a = 14.25, c = 30.03 [Å]
subject
comment
Fengchengite is a rare mineral ...... ity in China - hence its name.
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label
Fengchengite
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wasDerivedFrom
isPrimaryTopicOf
name
Fengchengite
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