Zirconolite-3O (original) (raw)
About Zirconolite-3OHide
This section is currently hidden. Click the show button to view.
Formula:
(Ca,REE)2Zr2(Ti,Nb)3FeO14
From Chukanov et al. (2018)
Crystal System:
Orthorhombic
Name:
Named for the zirconium in its composition.
A polytype of Zirconolite
Originally described as a new mineral given the name polymignite by Berzelius (1824) from a syenite pegmatite at Fredriksvärn (now: Stavern), Vestfold, Norway. The specimens were collected by Nils Otto Tank (1800-1864) around 1823-1824, when he was a student of mineralogy. Polymignite at Stavern is metamict.
Brögger (1890) described in detail the morphology and the chemical and physical properties. Lima-de-Faria (1958) found that recrystallization at 700℃ of the type material gave a cubic phase (with fluorite structure). Pudovkina et al. (1969) calculated, based on the axial ratios (0.712:1:0.512) given by Brögger (1890) and the cell unit volume, that polymignite is orthorhombic. Later shown to be identical with zirconolite described in 1956, and subsequently discredited in 1988. In spite of its priority and wide use in the literature, polymignite is now considered a metamict, originally orthorhombic polytype of zirconolite.
Haifler et al. (2021) investigated three samples of metamict "Polymignite" from different syenite pegmatites near Stavern and found that the chemical composition corresponded to the zirconolite-related minerals stefanweissite and nöggerathite-(Ce).
Unique IdentifiersHide
This section is currently hidden. Click the show button to view.
Long-form identifier:
mindat:1:1:6657:6
5dbe9a3f-934c-4688-b5e8-f5bbf45fa0b5
Chemistry of Zirconolite-3OHide
This section is currently hidden. Click the show button to view.
Mindat Formula:
(Ca,REE)2Zr2(Ti,Nb)3FeO14
From Chukanov et al. (2018)
Crystallography of Zirconolite-3OHide
This section is currently hidden. Click the show button to view.
Crystal System:
Orthorhombic
Class (H-M):
m m m _(_2/_m_2/_m_2/m ) - Dipyramidal
Cell Parameters:
a = 10.148(4) Å, b = 14.147(5) Å, c = 7.278(3) Å
Ratio:
a:b:c = 0.717 : 1 : 0.514
Unit Cell V:
1,044.86 ų (Calculated from Unit Cell)
Comment:
Space group Acam.
First Recorded Occurrence of Zirconolite-3OHide
This section is currently hidden. Click the show button to view.
Synonyms of Zirconolite-3OHide
This section is currently hidden. Click the show button to view.
Other Language Names for Zirconolite-3OHide
This section is currently hidden. Click the show button to view.
Common AssociatesHide
This section is currently hidden. Click the show button to view.
Associated Minerals Based on Photo Data:
Other InformationHide
This section is currently hidden. Click the show button to view.
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for Zirconolite-3OHide
This section is currently hidden. Click the show button to view.
References for Zirconolite-3OHide
This section is currently hidden. Click the show button to view.
Reference List:
Bellatreccia, Fabio, Della Ventura, Giancarlo, Williams, C. Terry, Lumpkin, Gregory R., Smith, Katherine L., Colella, Michael (2002) Non-metamict zirconolite polytypes from the feldspathoid-bearing alkali-syenitic ejecta of the Vico volcanic complex (Latium, Italy) European Journal of Mineralogy, 14 (4) 809-820 doi:10.1127/0935-1221/2002/0014-0809
Chukanov, Nikita, Zubkova, Natalia, Britvin, Sergey, Pekov, Igor, Vigasina, Marina, Schäfer, Christof, Ternes, Bernd, Schüller, Willi, Polekhovsky, Yury, Ermolaeva, Vera, Pushcharovsky, Dmitry (2018) Nöggerathite-(Ce), (Ce,Ca)2Zr2(Nb,Ti)(Ti,Nb)2Fe2+O14, a new zirconolite-related mineral from the Eifel volcanic region, Germany. Minerals, 8 (10) 449 doi:10.3390/min8100449
Localities for Zirconolite-3OHide
This section is currently hidden. Click the show button to view.
This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the 
symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
Locality ListHide
This section is currently hidden. Click the show button to view.
- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. 
- Good crystals or important locality for species. 
- World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).
All localities listed without proper references should be considered as questionable.