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Ferro-ferri-obertiite

A valid IMA mineral species
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09490470015069762241854.jpg
Roberta Oberti
Formula:
NaNa2(Fe2+3Fe3+Ti)Si8O22O2
Ferro-ferri-obertiite is a obertiite root name amphibole in the WO2- dominant amphibole group with Fe2+ as the dominant element in the C2+ position and Fe3+ as the dominant element in the C3+ position.
Colour:
Black
Lustre:
Vitreous
Hardness:
6
Specific Gravity:
3.330 (Calculated)
Crystal System:
Monoclinic
Name:
This mineral (IMA 2009-034) was originally named ferro-obertiite (Hawthorne et al. 2010). It was redefined in the 2012 amphibole nomenclature, and is now named ferro-ferri-obertiite. The root name is for Roberta Oberti, professor at the University of Pavia, Italy, and an expert on the crystal chemistry of amphiboles.
This page provides mineralogical data about Ferro-ferri-obertiite.


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Unique IdentifiersHide

Mindat ID:
39635
Long-form identifier:
mindat:1:1:39635:6
GUID
(UUID V4):
5bf8c6dd-08ad-42f4-858e-55aa6e8b44db

IMA Classification of Ferro-ferri-obertiiteHide

Approved
IMA status notes:
Redefined by the IMA
IMA Formula:
NaNa2(Fe2+3Fe3+Ti)Si8O22O2
Approval year:
2009
First published:
2010
Approval history:
Redefined IMA 2012 s.p.

Classification of Ferro-ferri-obertiiteHide

9.DE.25

9 : SILICATES (Germanates)
D : Inosilicates
E : Inosilicates with 2-periodic double chains, Si4O11; Clinoamphiboles
66.4.9.3

66 : INOSILICATES Double-Width,Unbranched Chains,(W=2)
4 : Amphiboles - Na subgroup

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference
FfobIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of Ferro-ferri-obertiiteHide

Vitreous
Colour:
Black
Streak:
Grey
Hardness:
Hardness Data:
Measured
Cleavage:
Perfect
Perfect {110} cleavage of monoclinic amphiboles, intersecting at ~56°.
Parting:
Brittle
Fracture:
Splintery
Density:
3.330 g/cm3 (Calculated)

Optical Data of Ferro-ferri-obertiiteHide

Type:
Biaxial (-)
RI values:
nα = 1.671(1) nβ = 1.000(1) nγ = 1.675(1)
2V:
Measured: 60° (3), Calculated: 59.9°
Max Birefringence:
δ = 0.004
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Optical Extinction:
X ∧ a = 77.3° (in β acute); Y = b; Z ∧ c = 91.2° (in β obtuse).
Pleochroism:
Visible
Comments:
X = dark brown; Y = brown; Z = dark grey.

Chemistry of Ferro-ferri-obertiiteHide

Mindat Formula:
NaNa2(Fe2+3Fe3+Ti)Si8O22O2

Ferro-ferri-obertiite is a obertiite root name amphibole in the WO2- dominant amphibole group with Fe2+ as the dominant element in the C2+ position and Fe3+ as the dominant element in the C3+ position.

Crystallography of Ferro-ferri-obertiiteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/m
Setting:
C2/m
Cell Parameters:
a = 9.845(4) Å, b = 18.018(8) Å, c = 5.296(3) Å
β = 103.86(3)°
Ratio:
a:b:c = 0.546 : 1 : 0.294
Unit Cell V:
912.09 ų (Calculated from Unit Cell)
Z:
2
Morphology:
Grains are euhedral to subhedral, prismatic to acicular on [001] and are bounded by {110} cleavage faces.

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
8.515 Å(80)
4.514 Å(20)
3.407 Å(60)
3.144 Å(50)
2.722 Å(100)
2.596 Å(50)
2.533 Å(40)
2.178 Å(30)
Comments:
Coyote Peak, California, USA. The data are from Hawthorne and Ball (2010).

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 3a: Earth’s earliest Hadean crust>4.50
10 : Basalt-hosted zeolite minerals

Type Occurrence of Ferro-ferri-obertiiteHide

General Appearance of Type Material:
Occurs as euhedral to subhedral prismatic to acicular crystals up to 1.25 mm across in a matrix of aegirine and feldspar.
Place of Conservation of Type Material:
Department of Natural History, Royal Ontario Museum, Toronto, Ontario, Canada, specimen number M54035.
Geological Setting of Type Material:
Occurs in an alkali diatreme that penetrates a lithic-wacke sandstone sequence of the Franciscan assemblage.
Associated Minerals at Type Locality:

Synonyms of Ferro-ferri-obertiiteHide

Relationship of Ferro-ferri-obertiite to other SpeciesHide

Other Members of this group:
Ferri-obertiiteNaNa2(Mg3Fe3+Ti)Si8O22O2 Mon. 2/m : B2/m
Mangani-obertiiteNaNa2(Mg3Mn3+Ti4+)Si8O22O2Mon. 2/m : B2/m
Unnamed (Possible K-analogue of Ferri-obertiite)KNa2((Mg,Fe,Na)3Fe3+(Ti,Fe))Si8O22(O,F)2

Related Minerals - Strunz-mindat GroupingHide

9.DE.Clino-suenoite◻{Mn2+2}{Mg5}(Si8O22)(OH)2Mon. 2/m : B2/m
9.DE.Scandio-winchite◻(NaCa)(Mg4Sc)(Si8O22)(OH)2Mon. 2/m : B2/m
9.DE.Mangani-eckermanniteNaNa2(Mg4Mn3+)Si8O22(OH)2Mon. 2/m : B2/m
9.DE.05Cummingtonite◻{Mg2}{Mg5}(Si8O22)(OH)2Mon. 2/m : B2/m
9.DE.05Clino-holmquistite Root Name Group◻{Li2}{Z2+3Z3+2}(Si8O22)(OH,F,Cl)2Mon.
9.DE.05Grunerite◻{Fe2+2}{Fe2+5}(Si8O22)(OH)2Mon. 2/m : B2/m
9.DE.05Permanganogrunerite◻{Mn2+2}{Mn2+5}(Si8O22)(OH)2Mon.
9.DE.05Ferri-fluoro-leakeite{Na}{Na2}{Mg2Fe3+2Li}(Si8O22)F2Mon. 2/m : B2/m
9.DE.10Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2Mon. 2/m : B2/m
9.DE.10Ferro-ferri-tschermakite◻{Ca2}{Fe2+3Fe3+2}(Al2Si6O22)(OH)2Mon.
9.DE.10Ferri-tschermakite◻{Ca2}{Mg3Fe3+2}(Al2Si6O22)(OH)2Mon.
9.DE.10Ferro-actinolite◻Ca2Fe2+5(Si8O22)(OH)2Mon. 2/m : B2/m
9.DE.10Ferro-hornblende◻Ca2(Fe2+4Al)(Si7Al)O22(OH)2Mon. 2/m : B2/m
9.DE.10Ferro-tschermakite◻{Ca2}{Fe2+3Al2}(Al2Si6O22)(OH)2Mon. 2/m : B2/m
9.DE.10JoesmithitePb2+Ca2(Mg3Fe3+2)(Si6Be2)O22(OH)2Mon. 2/m : P2/b
9.DE.10Magnesio-hornblende◻Ca2(Mg4Al)(Si7Al)O22(OH)2Mon. 2/m : B2/m
9.DE.10Tremolite◻Ca2Mg5(Si8O22)(OH)2Mon. 2/m : B2/m
9.DE.10Tschermakite◻(Ca2)(Mg3Al2)(Al2Si6O22)(OH)2Mon. 2/m : B2/m
9.DE.10CannilloiteCaCa2(Mg4Al)(Si5Al3O22)OH2Mon.
9.DE.10Fluoro-cannilloiteCaCa2(Mg4Al)(Si5Al3)O22F2Mon. 2/m : B2/m
9.DE.10Parvo-manganotremolite◻{CaMn2+}{Mg5}(Si8O22)(OH)2Mon. 2/m : B2/m
9.DE.10Fluoro-tremolite◻Ca2Mg5(Si8O22)F2Mon. 2/m : B2/m
9.DE.10Magnesio-fluoro-hornblende◻Ca2Mg5(AlSi7O22)F2
9.DE.10Ferro-fluoro-hornblende◻Ca2(Fe2+4Al)(AlSi7O22)F2
9.DE.10Ferro-ferri-hornblende◻Ca2(Fe2+4Fe3+)(AlSi7O22)(OH)2Mon. 2/m : B2/m
9.DE.10Magnesio-ferri-hornblende◻Ca2(Mg4Fe3+)[(Si7Al)O22](OH)2Mon. 2/m : B2/m
9.DE.10Ferro-cannilloiteCaCa2(Fe2+4Al)(Si5Al3O22)OH2
9.DE.10Ferro-ferri-cannilloiteCaCa2(Fe2+4Fe3+)(Si5Al3O22)OH2
9.DE.10Ferro-fluoro-actinolite◻{Ca2}{Fe5}(Si8O22)F2
9.DE.10Magnesio-ferri-fluoro-hornblende◻Ca2(Mg4Fe3+)(AlSi7O22)F2Mon. 2/m : B2/m
9.DE.10Ferro-ferri-fluoro-hornblende◻Ca2(Fe2+4Fe3+)(AlSi7O22)F2
9.DE.10Ferri-fluoro-tschermakite◻{Ca2}{Mg3Fe3+2}(Al2Si6O22)F2
9.DE.10Ferro-ferri-fluoro-tschermakite◻{Ca2}{Fe2+3Fe3+2}(Al2Si6O22)F2
9.DE.10Ferro-fluoro-tschermakite◻{Ca2}{Fe2+3Al2}(Al2Si6O22)F2
9.DE.10Fluoro-tschermakite◻{Ca2}{Mg3Al2}(Al2Si6O22)F2
9.DE.10Clino-ferro-suenoite◻{Mn2+2}{Fe2+5}(Si8O22)(OH)2
9.DE.15EdeniteNaCa2Mg5(Si7Al)O22(OH)2Mon. 2/m : B2/m
9.DE.15Ferro-edeniteNaCa2Fe2+5(Si7Al)O22(OH)2Mon. 2/m : B2/m
9.DE.15Ferro-kaersutiteNaCa2{Fe2+3AlTi}(Si6Al2O22)O2Mon.
9.DE.15Ferro-pargasiteNaCa2(Fe2+4Al)(Si6Al2)O22(OH)2Mon. 2/m : B2/m
9.DE.15HastingsiteNaCa2(Fe2+4Fe3+)(Si6Al2)O22(OH)2Mon. 2/m : B2/m
9.DE.15KaersutiteNaCa2(Mg3AlTi4+)(Si6Al2)O22O2Mon. 2/m : B2/m
9.DE.15Magnesio-hastingsiteNaCa2(Mg4Fe3+)(Si6Al2)O22(OH)2Mon. 2/m : B2/m
9.DE.15PargasiteNaCa2(Mg4Al)(Si6Al2)O22(OH)2Mon. 2/m : B2/m
9.DE.15Sadanagaite{Na}{Ca2}{Mg3Al2}(Si5Al3O22)(OH)2Mon.
9.DE.15Fluoro-edeniteNaCa2Mg5(Si7Al)O22F2Mon. 2/m : P2/m
9.DE.15Potassic-ferro-ferri-sadanagaite{K}{Ca2}{Fe2+3Fe3+2}(Al3Si5O22)(OH)2Mon. 2/m : B2/m
9.DE.15Ferro-ferri-sadanagaite{Na}{Ca2}{Fe2+3Fe3+2}(Al3Si5O22)(OH)2Mon.
9.DE.15Potassic-sadanagaite{K}{Ca2}{Mg3Al2}(Al3Si5O22)(OH)2Mon. 2
9.DE.15Potassic-pargasiteKCa2(Mg4Al)(Si6Al2)O22(OH)2Mon. 2/m : B2/m
9.DE.15Potassic-ferro-sadanagaite{K}{Ca2}{Fe2+3Al2}(Al3Si5O22)(OH)2Mon.
9.DE.15Magnesio-fluoro-hastingsiteNaCa2(Mg4Fe3+)(Si6Al2)O22F2Mon. 2/m : B2/m
9.DE.15Ferro-chloro-pargasiteNaCa2(Fe2+4Al)(Al2Si6O22)Cl2
9.DE.15Potassic-fluoro-hastingsiteKCa2(Fe2+4Fe3+)(Si6Al2)O22F2Mon. 2/m : B2/m
9.DE.15Potassic-chloro-hastingsiteKCa2(Fe2+4Fe3+)(Si6Al2)O22Cl2Mon. 2/m : B2/m
9.DE.15Fluoro-pargasiteNaCa2(Mg4Al)(Si6Al2)O22F2Mon. 2/m : B2/m
9.DE.15Parvo-mangano-edenite{Na}{CaMn2+}{Mg5}(AlSi7O22)(OH)2Mon. 2/m : B2/m
9.DE.15Fluoro-hastingsiteNaCa2(Fe2+4Fe3+)(Al2Si6O22)F2
9.DE.15Potassic-chloro-pargasiteKCa2(Mg4Al)(Si6Al2)O22Cl2Mon. 2/m : B2/m
9.DE.15Ferro-fluoro-pargasite(Na)(Ca2)(Fe2+4Al)(Al2Si6O22)F2
9.DE.15Potassic-ferro-chloro-edeniteKCa2Fe2+5(AlSi7O22)Cl2
9.DE.15Potassic-magnesio-hastingsiteKCa2(Mg4Fe3+)(Si6Al2)O22(OH)2Mon. 2/m : B2/m
9.DE.15Potassic-ferro-pargasiteKCa2(Fe2+4Al)(Si6Al2)O22(OH)2Mon. 2/m : B2/m
9.DE.15Potassic-hastingsiteKCa2(Fe2+4Fe3+)(Al2Si6O22)(OH)2Mon. 2/m : B2/m
9.DE.15Chromio-pargasiteNaCa2(Mg4Cr)(Si6Al2)O22(OH)2Mon. 2/m : B2/m
9.DE.15Potassic-fluoro-pargasiteKCa2(Mg4Al)(Si6Al2)O22F2Mon. 2/m : B2/m
9.DE.15Ferri-kaersutiteNaCa2(Mg3Fe3+Ti)(Si6Al2O22)O2 Mon. 2/m : B2/m
9.DE.15Ferro-fluoro-edeniteNaCa2Fe2+5(AlSi7O22)F2Mon. 2/m : B2/m
9.DE.15Ferri-sadanagaite{Na}{Ca2}{Mg3Fe3+2}(Al3Si5O22)(OH)2
9.DE.15Ferro-sadanagaite{Na}{Ca2}{Fe3Al2}(Al3Si5O22)(OH)2
9.DE.15Ferri-fluoro-sadanagaite{Na}{Ca2}{Mg3Fe3+2}(Al3Si5O22)F2
9.DE.15Ferro-ferri-fluoro-sadanagaite{Na}{Ca2}{Fe2+3Fe3+2}(Al3Si5O22)F2
9.DE.15Ferro-fluoro-sadanagaite{Na}{Ca2}{Fe2+3Al2}(Al3Si5O22)F2
9.DE.15Fluoro-sadanagaite{Na}{Ca2}{Mg3Al2}(Al3Si5O22)F2
9.DE.15Potassic-chloro-sadanagaite{K}{Ca2}{Mg3Al2}(Al3Si5O22)Cl2
9.DE.15Potassic-ferro-chloro-sadanagaite{K}{Ca2}{Fe2+3Al2}(Al3Si5O22)Cl2
9.DE.15Oxo-magnesio-hastingsiteNaCa2(Mg3(Fe3+2-x,Tix))5(Si6Al2O22)O2Mon. 2/m : B2/m
9.DE.15Unnamed (F-dominant analogue of Ferri-kaersutite)(Na,K)Ca2[Mg3(Fe3+,Fe2+)Ti](Si6Al2O22)(F,O)2Mon. 2/m : B2/m
9.DE.15Vanadio-pargasiteNaCa2(Mg3+4V)(Al2Si6)O22(OH)2Mon. 2/m : B2/m
9.DE.15Mangani-pargasiteNaCa2(Mg4Mn3+)(Si6Al2)O22(OH)2Mon. 2/m : B2/m
9.DE.20Potassic-ferro-ferri-katophorite{K}{CaNa}{Fe2+4Fe3+}[(AlSi7)O22](OH)2
9.DE.20Ferro-taramiteNa(CaNa)(Fe2+3Al2)(Al2Si6O22)(OH)2Mon. 2/m : B2/m
9.DE.20Barroisite◻{CaNa}{Mg3Al2}(AlSi7O22)(OH)2Mon. 2/m : B2/m
9.DE.20Ferro-ferri-barroisite◻(CaNa)(Fe2+3Fe3+2)(AlSi7O22)(OH)2
9.DE.20Ferro-ferri-winchite◻[CaNa][Fe2+4(Fe3+,Al)]Si8O22(OH)2
9.DE.20Ferri-barroisite◻(CaNa)(Mg3Fe3+2)(AlSi7O22)(OH)2
9.DE.20Ferro-ferri-taramiteNa(CaNa)(Fe2+3Fe3+2)(Al2Si6O22)(OH)2
9.DE.20Ferro-ferri-katophoriteNa(NaCa)(Fe2+4Fe3+)(Si7Al)O22(OH)2Mon. 2/m : B2/m
9.DE.20Ferro-barroisite◻{CaNa}{Fe2+3Al2}(AlSi7O22)(OH)2Mon. 2/m : B2/m
9.DE.20Ferro-richterite{Na}{CaNa}{Fe2+5}(Si8O22)(OH)2Mon. 2/m : B2/m
9.DE.20Ferro-winchite ◻{CaNa}{Fe2+4Al}(Si8O22)(OH)2Mon.
9.DE.20Ferro-katophorite{Na}{CaNa}{Fe2+4Al}[(AlSi7)O22](OH)2Mon. 2/m : B2/m
9.DE.20Ferri-katophoriteNa(CaNa)(Mg4Fe3+)(AlSi7O22)(OH)2Mon. 2/m : B2/m
9.DE.20Ferri-taramiteNa(CaNa)(Mg3Fe3+2)(Al2Si6O22)(OH)2Mon. 2/m : B2/m
9.DE.20Magnesiotaramite{Na}{CaNa}{Mg3AlFe3+}(Al2Si6O22)(OH)2Mon.
9.DE.20RichteriteNa(NaCa)Mg5(Si8O22)(OH)2Mon. 2/m : B2/m
9.DE.20Winchite◻{CaNa}{Mg4Al}(Si8O22)(OH)2Mon. 2/m : B2/m
9.DE.20TaramiteNa(CaNa)(Mg3Al2)(Al2Si6O22)(OH)2Mon. 2/m : B2/m
9.DE.20Fluoro-richterite{Na}{CaNa}{Mg5}(Si8O22)(F,OH)2Mon. 2/m : B2/m
9.DE.20Katophorite{Na}{CaNa}{Mg4Al}[(AlSi7)O22](OH)2Mon. 2/m : B2/m
9.DE.20Potassic-fluoro-richterite{K}{CaNa}{Mg5}(Si8O22)(F,OH)2Mon. 2/m : B2/m
9.DE.20Potassic-richterite{K}{CaNa}{Mg5}Si8O22(OH)2Mon. 2/m : B2/m
9.DE.20Potassic-fluoro-katophoriteK(CaNa)(Mg4Al)(AlSi7O22)F2
9.DE.20Ferro-fluoro-katophoriteNa(CaNa)(Fe2+4Al)(AlSi7O22)F2
9.DE.20Ferro-ferri-fluoro-katophoriteNa(CaNa)(Fe2+4Fe3+)(AlSi7O22)F2Mon.
9.DE.20Ferri-ghoseite◻[Mn2+Na][Mg4Fe3+]Si8O22(OH)2Mon. 2/m : B2/m
9.DE.20Ferri-winchite◻(NaCa)(Mg4Fe3+)Si8O22(OH)2Mon. 2/m : B2/m
9.DE.20Fluoro-taramite{Na}{CaNa}{Mg3Al2}(Al2Si6O22)F2Mon. 2/m : B2/m
9.DE.20Ferro-fluoro-richterite{Na}{CaNa}{Fe2+5}(Si8O22)F2
9.DE.20Fluoro-katophoriteNa(CaNa)(Mg4Al)(AlSi7O22)F2Mon.
9.DE.20Potassic-ferri-katophoriteK(CaNa)(Mg4Fe3+)(AlSi7O22)(OH)2
9.DE.20Potassic-ferro-richterite{K}{CaNa}{Fe2+5}Si8O22(OH)2
9.DE.20Ferri-fluoro-katophoriteNa(CaNa)(Mg4Fe3+)(AlSi7O22)F2Mon. 2/m : B2/m
9.DE.20Potassic-ferro-taramiteK{CaNa}{Fe2+3Al2}{Si6Al2}O22(OH)2Mon. 2/m : B2/m
9.DE.20Fluoro-winchite◻{CaNa}{Mg4Al}(Si8O22)F2
9.DE.20Ferro-fluoro-winchite◻{CaNa}{Fe2+4Al}(Si8O22)F2
9.DE.20Ferri-fluoro-barroisite◻{CaNa}{Mg3Fe3+2}(AlSi7O22)F2
9.DE.20Ferro-fluoro-barroisite◻{CaNa}{Fe2+3Al2}(AlSi7O22)F2
9.DE.20Ferro-ferri-fluoro-barroisite◻{CaNa}{Fe2+3Fe3+2}(AlSi7O22)F2
9.DE.20Fluoro-barroisite◻{CaNa}{Mg3Al2}(AlSi7O22)F2
9.DE.20Ferri-fluoro-taramiteNa(CaNa)(Mg3Fe3+2)(Al2Si6O22)F2
9.DE.20Ferro-ferri-fluoro-taramiteNa(CaNa)(Fe2+3Fe3+2)(Al2Si6O22)F2
9.DE.20Ferro-fluoro-taramiteNa(CaNa)(Fe2+3Al2)(Al2Si6O22)F2
9.DE.20Potassic-ferri-taramiteK(CaNa)(Mg3Fe3+2)(Al2Si6O22)(OH)
9.DE.20Ghoseite◻[Mn2+Na][Mg4Al]Si8O22(OH)2
9.DE.20Potassic-ferro-ferri-taramiteK(CaNa)(Fe2+3Fe3+2)(Al2Si6O22)(OH)2Mon. 2/m : B2/m
9.DE.20Clinoferroholmquistite◻Li2[Fe2+3Al2]Si8O22(OH,F)2
9.DE.20Hjalmarite{Na}(NaMn}{Mg5}Si8O22(OH)2Mon. 2/m : B2/m
9.DE.25Arfvedsonite[Na][Na2][Fe2+4Fe3+]Si8O22(OH)2Mon. 2/m : B2/m
9.DE.25EckermanniteNaNa2(Mg4Al}Si8O22(OH)2Mon. 2/m : B2/m
9.DE.25Ferro-eckermanniteNaNa2(Fe2+4Al)Si8O22(OH)2Mon.
9.DE.25Ferro-glaucophane◻[Na2][Fe2+3Al2]Si8O22(OH)2Mon. 2/m : B2/m
9.DE.25Glaucophane◻[Na2][Mg3Al2]Si8O22(OH)2Mon. 2/m : B2/m
9.DE.25Potassic-mangani-leakeite[(Na,K)][Na2][Mg2Mn3+2Li]Si8O22(OH)2Mon. 2/m : B2/m
9.DE.25Mangano-ferri-eckermannite{Na}{Na2}{Mn2+4Fe3+}Si8O22(OH)2Mon. 2/m : B2/m
9.DE.25Ferri-leakeite[Na][Na2][Mg2Fe3+2Li]Si8O22(OH)2Mon. 2/m : B2/m
9.DE.25Magnesio-riebeckite◻{Na2}{Mg3Fe3+2}(Si8O22)(OH)2Mon.
9.DE.25Magnesio-arfvedsonite{Na}{Na2}{Mg4Fe3+}(Si8O22)(OH)2Mon. 2/m : B2/m
9.DE.25NybøiteNaNa2(Mg3Al2)(AlSi7O22)(OH)2Mon. 2/m : B2/m
9.DE.25Riebeckite◻[Na2][Fe2+3Fe3+2]Si8O22(OH)2Mon. 2/m : B2/m
9.DE.25Mangano-mangani-ungarettiiteNaNa2(Mn2+2Mn3+3)(Si8O22)O2Mon. 2/m : B2/m
9.DE.25Ferro-ferri-nybøiteNaNa2[(Fe2+3,Mg)Fe3+2](AlSi7O22)(OH)2Mon. 2/m : B2/m
9.DE.25Clino-ferro-ferri-holmquistite◻{Li2}{Fe2+3Fe3+2}(Si8O22)(OH)2Mon. 2/m : B2/m
9.DE.25Ferri-nybøiteNaNa2(Mg3Fe3+2](AlSi7O22)(OH)2Mon.
9.DE.25Ferro-ferri-leakeite[Na][Na2][Fe2+2Fe3+2Li]Si8O22(OH)2Mon.
9.DE.25Ferro-ferri-fluoro-leakeiteNa(Na2)(Fe2+2Fe3+2Li)(Si8O22)(F)2Mon. 2/m : B2/m
9.DE.25Sodic-ferri-clinoferroholmquistiteNa0.5{Li2}{Fe2+3Fe3+2}(Si8O22)(OH)2Mon.
9.DE.25Magnesio-fluoro-arfvedsonite[Na][Na2][Mg4Fe3+][Si8O22](F,OH)2Mon. 2/m : B2/m
9.DE.25Ferri-pedrizite[Na][Li2][Mg2Fe3+2Li]Si8O22(OH)2Mon.
9.DE.25Potassic-ferri-leakeite[K][Na2][Mg2Fe3+2Li]Si8O22(OH)2Mon. 2/m : B2/m
9.DE.25Fluoro-nybøiteNaNa2(Mg3Al2)(AlSi7O22)(F,OH)2Mon. 2/m : B2/m
9.DE.25Mangano-ferri-fluoro-leakeiteNaNa2(Mn2+2Fe3+2Li)[Si8O22]F2Mon.
9.DE.25Clino-fluoro-holmquistite◻{Li2}{Mg3Al2}(Si8O22)F2
9.DE.25Mangani-dellaventuraiteNaNa2(MgMn3+2Ti4+Li)Si8O22O2Mon. 2/m : B2/m
9.DE.25Fluoro-pedriziteNaLi2(Mg2Al2Li)(Si8O22)F2Mon. 2/m : B2/m
9.DE.25Potassic-arfvedsonite[(K,Na)][Na2][Fe2+4Fe3+]Si8O22(OH)2Mon. 2/m : B2/m
9.DE.25Mangani-obertiiteNaNa2(Mg3Mn3+Ti4+)Si8O22O2Mon. 2/m : B2/m
9.DE.25Ferro-nybøiteNaNa2(Fe2+3Al2)(AlSi7)O22(OH)2Mon.
9.DE.25Clino-sodic-fluoro-holmquistite{Na}{Li2}{Mg4Al}(Si8O22)F2
9.DE.25Potassic-magnesio-fluoro-arfvedsonite[(K,Na)][Na2][Mg4Fe3+][Si8O22][(F,OH)2]Mon. 2/m : B2/m
9.DE.25Ferro-ferri-pedrizite[Na][Li2][Fe2+2Fe3+2Li]Si8O22(OH)2Mon. 2/m : B2/m
9.DE.25Potassic-magnesio-arfvedsonite[K][Na2][Mg4Fe3+]Si8O22(OH)2Mon. 2/m : B2/m
9.DE.25Ferro-fluoro-glaucophane◻[Na2][Fe2+3Al2]Si8O22F2
9.DE.25PedriziteNaLi2(LiMg2Al2)(Si8O22)(OH)2Mon. 2/m : B2/m
9.DE.25Ferro-pedriziteNaLi2(Fe2+2Al2Li)Si8O22(OH)2Mon. 2/m : B2/m
9.DE.25Ferro-fluoro-pedriziteNa(Li2)(Fe2+2Al2Li)[Si8O22]F2Mon. 2/m : B2/m
9.DE.25Fluoro-leakeiteNaNa2(Mg2Al2Li)(Si8O22)F2Mon. 2/m : B2/m
9.DE.25Fluoro-glaucophane◻[Na2][Mg3Al2]Si8O22F2
9.DE.25Fluoro-riebeckite◻{Na2}{Fe2+3Fe3+2}(Si8O22)F2Mon. 2/m : B2/m
9.DE.25Magnesio-fluoro-riebeckite◻{Na2}{Mg3Fe3+2}(Si8O22)F2
9.DE.25Fluoro-eckermanniteNaNa2(Mg4Al}Si8O22F2
9.DE.25Ferro-fluoro-eckermanniteNaNa2(Fe2+4Al}Si8O22F2
9.DE.25Fluoro-arfvedsonite[Na][Na2][Fe2+4Fe3+]Si8O22F2
9.DE.25Ferri-fluoro-nybøiteNaNa2(Mg3Fe3+2)(AlSi7O22)F2
9.DE.25Ferro-ferri-fluoro-nybøiteNaNa2(Fe2+3Fe3+2)(AlSi7O22)F2
9.DE.25Ferro-fluoro-nybøiteNaNa2(Fe2+3Al2)(AlSi7O22)F2
9.DE.25Ferro-leakeiteNaNa2(Fe2+2Al2Li)(Si8O22)(OH)2
9.DE.25LeakeiteNaNa2(Mg2Al2Li)(Si8O22)(OH)2
9.DE.25Potassic-leakeiteKNa2(Mg2Al2Li)(Si8O22)(OH)2
9.DE.25Ferri-fluoro-pedriziteNaLi2(LiMg2Fe3+2)(Si8O22)F2
9.DE.25Ferro-ferri-fluoro-pedriziteNaLi2(LiFe2+2Fe3+2)(Si8O22)F2
9.DE.25Clino-ferro-ferri-fluoro-holmquistite◻{Li2}{Fe2+3Fe3+2}(Si8O22)F2
9.DE.25Clino-ferri-fluoro-holmquistite◻{Li2}{Mg3Fe3+2}(Si8O22)F2
9.DE.25Clino-ferro-fluoro-holmquistite◻{Li2}{Fe2+3Al2}(Si8O22)F2
9.DE.25Ferri-obertiiteNaNa2(Mg3Fe3+Ti)Si8O22O2 Mon. 2/m : B2/m
9.DE.25Oxo-mangani-leakeiteNaNa2(Mn3+4Li)Si8O22O2Mon. 2/m : B2/m
9.DE.25Oxo-pargasiteNaCa2(Mg3(Al2-x,Tix))5(Si6Al2O22)O2
9.DE.25Unnamed (Possible K-analogue of Ferri-obertiite)KNa2((Mg,Fe,Na)3Fe3+(Ti,Fe))Si8O22(O,F)2
9.DE.25Potassic-mangano-mangani-ungarettiiteKNa2(Mn2+2Mn3+3)Si8O22O2
9.DE.25Potassic-jeanlouisiteK(NaCa)(Mg4Ti)Si8O22O2Mon. 2/m : B2/m

Fluorescence of Ferro-ferri-obertiiteHide

Other InformationHide

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 Ferro-ferri-obertiiteHide

References for Ferro-ferri-obertiiteHide

Localities for Ferro-ferri-obertiiteHide

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 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.
Germany
 
  • Rhineland-Palatinate
    • Mayen-Koblenz
      • Vordereifel
        • Ettringen
Günter Blaß information
USA (TL)
 
  • California
    • Humboldt County
      • Coastal Range
Hawthorne et al. (2010)
 
Mineral and/or Locality  
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