Khomyakovite
Khomyakovite is an exceedingly rare mineral of the eudialyte group, with formula Na12Sr3Ca6Fe3Zr3WSi(Si9O27)2(Si3O9)2O(O,OH,H2O)3(OH,Cl)2. It is a mineral containing calcium, chlorine, hydrogen, iron, oxygen, silicon, sodium,…
Geographic Minerals
Kentbrooksite
Kentbrooksite is a moderately rare mineral of the eudialyte group, with formula (Na,REE)15(Ca,REE)6Mn3Zr3NbSi[(Si9O27)2(Si3O9)2O2]F2·2H2O. It is a trigonal-ditrigonal pyramidal yellowish-brown mineral containing calcium, fluorine, hydrogen, la, ce,…
Johnsenite-(Ce):Properties and Occurrences
Johnsenite-(Ce) is a very rare mineral of the eudialyte group, with formula Na12(Ce,La,Sr,Ca,[])3Ca6Mn3Zr3WSi(Si9O27)2(Si3O9)2(CO3)O(OH,Cl)2. It is a mineral containing calcium, chlorine, hydrogen, iron, oxygen, silicon, sodium,…
Ilyukhinite
Ilyukhinite is a very rare mineral of the eudialyte group, with formula (H3O,Na)14Ca6Mn2Zr3Si26O72(OH)2·3H2O. The formula given is simplified and does not show the presence of…
Ikranite: Properties and Occurrences
Ikranite is a member of the eudialyte group, named after the Shubinov Institute of Crystallography of the Russian Academy of Sciences. Formula – (Na,H3O)15(Ca,Mn,REE)6Fe23+ Zr3([…
Golyshevite: Properties and Occurrences
Golyshevite is a rare mineral of the eudialyte group, with formula Na10Ca3Ca6Zr3Fe2SiNb(Si3O9)2(Si9O27)2CO3(OH)3•H2O. It was named for Russian crystallographer Vladimir Mikhailovich Golyshev of the Mordvinian State…
Georgbarsanovite
Georgbarsanovite is a very rare mineral of the eudialyte group, formerly known under the unaccepted name as barsanovite, with formula Na12(Mn, Sr, REE)3Ca6Fe32+Zr3NbSi(Si3O9)2(Si9O27)2O4Cl2•H2O. The original…
Ferrokentbrooksite
Ferrokentbrooksite is a moderately rare mineral of the eudialyte group, with formula Na15Ca6(Fe,Mn)3Zr3NbSi(Si3O9)2(Si9O27)2O(O,OH,H2O)3(Cl,F,OH)2. It is a trigonal-ditrigonal pyramidal mineral containing aluminum, calcium, chlorine, fluorine, hafnium,…
Fengchengite
Fengchengite is a rare mineral of the eudialyte group with the formula Na12[]3(Ca, Sr)6Fe33+Zr3Si(Si24O73)(H2O, OH)3(OH, Cl)2. The formula is simplified as it does not show…
Feklichevite
Feklichevite is a rare mineral of the eudialyte group with the formula Na11Ca9(Fe3+, Fe2+)2Zr3NbSi(Si3O9)2 (Si9O27)2. It is a trigonal-ditrigonal pyramidal mineral containing calcium, cerium, chlorine,…
Dualite: Properties and Occurrences
Dualite is a very rare and complex mineral of the eudialyte group, its complexity being expressed in its formula: Na30(Ca, Na, Ce, Sr)12(Na, Mn, Fe,…
Davinciite: Properties and Occurrence
Davinciite is a very rare mineral of the eudialyte group, with the simplified formula Na12K3Ca6Fe32+Zr3(Si2O73OH)Cl2. The formula given does not show the presence of cyclic…
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