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Magnesio-riebeckite

A valid IMA mineral species - grandfathered
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About Magnesio-riebeckiteHide

Formula:
◻{Na2}{Mg3Fe3+2}(Si8O22)(OH)2
Magnesio-riebeckite is defined as a member of the riebeckite group with Mg>Fe2+ in the C2+ position and (OH) in the W position.
Colour:
Light blue to blue-black.
Lustre:
Vitreous
Hardness:
5 - 5½
Crystal System:
Monoclinic
Name:
Named in 1957 by Akiho Miashiro for its relationship to riebeckite and its magnesium content.
Forms a series with riebeckite.


Unique IdentifiersHide

Mindat ID:
2518
Long-form identifier:
mindat:1:1:2518:4
GUID
(UUID V4):
0259b957-c3c4-40b2-953c-d45effdbec9a

IMA Classification of Magnesio-riebeckiteHide

Approved, 'Grandfathered' (first described prior to 1959)
IMA status notes:
Redefined by the IMA
IMA Formula:
◻Na2(Mg3Fe3+2)Si8O22(OH)2
Approval history:
Redefined IMA 2012 s.p.

Classification of Magnesio-riebeckiteHide

9.DE.25

9 : SILICATES (Germanates)
D : Inosilicates
E : Inosilicates with 2-periodic double chains, Si4O11; Clinoamphiboles
14.24.1

14 : Silicates not Containing Aluminum
24 : Silicates of Fe, Mg and alkalis

Mineral SymbolsHide

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

Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.

SymbolSourceReference
MrbkIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43
MrbKretz (1983)Kretz, R. (1983) Symbols of rock-forming minerals. American Mineralogist, 68, 277–279.
Mg-RbkSiivolam & Schmid (2007)Siivolam, J. and Schmid, R. (2007) Recommendations by the IUGS Subcommission on the Systematics of Metamorphic Rocks: List of mineral abbreviations. Web-version 01.02.07. IUGS Commission on the Systematics in Petrology. download
MrbkWhitney & Evans (2010)Whitney, D.L. and Evans, B.W. (2010) Abbreviations for names of rock-forming minerals. American Mineralogist, 95, 185–187 doi:10.2138/am.2010.3371
MrbThe Canadian Mineralogist (2019)The Canadian Mineralogist (2019) The Canadian Mineralogist list of symbols for rock- and ore-forming minerals (December 30, 2019). download

Physical Properties of Magnesio-riebeckiteHide

Vitreous
Colour:
Light blue to blue-black.
Streak:
Pale grey to bluish-grey.
Hardness:
5 - 5½ on Mohs scale
Cleavage:
Perfect
on {110}

Optical Data of Magnesio-riebeckiteHide

Type:
Biaxial (-)
RI values:
nα = 1.668 nβ = 1.672 nγ = 1.680
2V:
Measured: 75° to 85°, Calculated: 72°
Max Birefringence:
δ = 0.012
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
High
Dispersion:
r > v or r < v

Chemistry of Magnesio-riebeckiteHide

Mindat Formula:
◻{Na2}{Mg3Fe3+2}(Si8O22)(OH)2

Magnesio-riebeckite is defined as a member of the riebeckite group with Mg>Fe2+ in the C2+ position and (OH) in the W position.
Common Impurities:
Ti,Al,Mn,Ca,K,H2O

Chemical AnalysisHide

Oxide wt%:
 12
SiO253.85 %56.34 %
TiO20.12 % %
Al2O30.80 %4.00 %
FeO223.42 % %
MnO0.10 %1.05 %
MgO9.49 %15.26 %
CaO1.40 %0.66 %
Na2O6.39 %7.89 %
K2O0.33 %0.30 %
Cl0.01 % %
F0.18 %0.38 %
FeO %3.14 %
O=F %0.16 %
Total:96.09 %89.18 %
Empirical formulas:
Sample IDEmpirical Formula
2A(Na0.22K0.0,05)0.27 B( (Na1.90Ca0.10) 2.00 C( (Mg3.16Fe2+0.05Mn2+0.12Fe3+1.06Al0.61) 5.00 T( (Si7.96Al0.04) 8.00O22 W( (OH) 1.83 F0.17) 2.00
Sample references:
IDLocalityReferenceNotes
1Mud Tank Vermiculite Mine, Alcoota Station, Central Desert Region, Northern Territory, AustraliaAverage of 6 analyses. Sample from an alkali-syenite.
2Iimori mine, Afuzu-mura, Iwade city, Wakayama Prefecture, JapanChemical analyses of the amphibole were performed on JEOL JXA–8800R and JEOL JXA–8900R electron microprobes at the GSJ Laboratory, AIST. Based on the relatively high oxygen fugacity indicated by the high Fe3+/(Fe2++Fe3+) ratios (0.99–1.0) of associated aegirine and garnet (Banno and Yamada, 2012), the Fe3+/Fe2+ ratios of the amphibole were estimated using the maximum ferric method of Leake et al. (1997). Total Mn was expressed as Mn2+, because, in this way, formulae calculated using the maximum ferric method satisfied the six criteria for calculation of amphibole formulae outlined by Leake et al. (1997).

The amphibole is pale yellowish green and occurs as euhedral to subhedral crystals with lengths up to 500µm.

Crystallography of Magnesio-riebeckiteHide

Crystal System:
Monoclinic
Cell Parameters:
a = 9.745 Å, b = 17.912 Å, c = 5.278 Å
β = 103.82°
Ratio:
a:b:c = 0.544 : 1 : 0.295
Unit Cell V:
894.62 ų (Calculated from Unit Cell)
Z:
2
Comment:
Oberti et al. (2017) give a = 9.6481(14), b = 17.873(3), c = 5.3013(7) Å, β = 103.630(2)°, V = 888.4 (2) Å3.

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
High-𝑇 alteration and/or metamorphism
32 : Ba/Mn/Pb/Zn deposits, including metamorphic deposits
Stage 4b: Highly evolved igneous rocks>3.0
35 : Ultra-alkali and agpaitic igneous rocks
Stage 5: Initiation of plate tectonics<3.5-2.5
40 : Regional metamorphism (greenschist, amphibolite, granulite facies)

Type Occurrence of Magnesio-riebeckiteHide

General Appearance of Type Material:
Dark blue, asbestiform fibers up to 1 meter long.
Geological Setting of Type Material:
Veins in slightly metamorphosed sandstone and carbonates associated with evaporites.

Synonyms of Magnesio-riebeckiteHide

Other Language Names for Magnesio-riebeckiteHide

Relationship of Magnesio-riebeckite to other SpeciesHide

Other Members of this group:
Fluoro-riebeckite◻{Na2}{Fe2+3Fe3+2}(Si8O22)F2Mon. 2/m : B2/m
Magnesio-fluoro-riebeckite◻{Na2}{Mg3Fe3+2}(Si8O22)F2
Riebeckite◻[Na2][Fe2+3Fe3+2]Si8O22(OH)2Mon. 2/m : B2/m

Common AssociatesHide

Associated Minerals Based on Photo Data:
35 photos of Magnesio-riebeckite associated with DanburiteCaB2Si2O8
34 photos of Magnesio-riebeckite associated with Blue QuartzSiO2
18 photos of Magnesio-riebeckite associated with QuartzSiO2
5 photos of Magnesio-riebeckite associated with CalciteCaCO3
4 photos of Magnesio-riebeckite associated with FerristilpnomelaneK(Fe3+,Mg,Fe2+)8(Si,Al)12(O,OH)27
3 photos of Magnesio-riebeckite associated with SphaleriteZnS
2 photos of Magnesio-riebeckite associated with MuscoviteKAl2(AlSi3O10)(OH)2
2 photos of Magnesio-riebeckite associated with Piemontite(CaCa)(AlAlMn3+)O[Si2O7][SiO4](OH)
2 photos of Magnesio-riebeckite associated with JohninnesiteNa2Mn2+9Mg7(OH)8[AsO4]2[Si6O17]2
2 photos of Magnesio-riebeckite associated with JacobsiteMn2+Fe3+2O4

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-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.25Ferro-ferri-obertiiteNaNa2(Fe2+3Fe3+Ti)Si8O22O2Mon. 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

Other InformationHide

Health Risks:
The asbestiform variety of magnesioriebeckite can cause lung disease when inhaled, as in other species of asbestos minerals.

Magnesio-riebeckite in petrologyHide

An essential component of rock names highlighted in red, an accessory component in rock names highlighted in green.

Internet Links for Magnesio-riebeckiteHide

References for Magnesio-riebeckiteHide

Localities for Magnesio-riebeckiteHide

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.
Atlantic Ocean
 
  • Walvis Ridge
Carman et al. (South Atlantic) +1 other reference
Australia
 
  • Northern Territory
    • Central Desert Region
      • Alcoota Station
Currie et al. (1992)
  • Queensland
    • City of Mount Isa
Andy Wilde et al. (2013)
  • South Australia
    • Flinders Ranges
      • North Flinders Ranges
Lottermoser (1987) +2 other references
  • Tasmania
    • Waratah-Wynyard municipality
      • Corinna-Savage River district
Bottrill & Taheri +1 other reference
  • Western Australia
    • Laverton Shire
      • Mount Weld Station
Dunkan +4 other references
Austria
 
  • Salzburg
    • Hallein District
      • Abtenau
        • Seydegg
Strasser (1989)
        • Webing
Strasser (1989)
      • Golling an der Salzach
        • Grabenbach area
Strasser (1989)
Strasser (1989)
      • Scheffau am Tennengebirge
        • Grubach
          • Moosegg
Strasser (1989)
    • Tamsweg District
      • Tweng
abstract in Mitt. Österr. Mineral. ... +1 other reference
  • Styria
    • Liezen District
      • Grundlsee
        • Wienern
Exel (1993)
  • Vorarlberg
    • Bludenz District
Meixner (1978) +1 other reference
Belarus
 
  • Gomel Region
    • Zhytkavichy District
E.P. Shpanov et al. (1989) +1 other reference
Bolivia (TL)
 
  • Cochabamba
    • Chapare Province
Whittaker: Acta Crystallographica (1949)
        • Cristalmayu subdistrict
          • Campovía
GEOBOL-PNUD et al. (as "crocidolite")
          • Chocolatal (Rocko Rancho)
            • Minasmayu valley
GEOBOL-PNUD et al. (as "crocidolite")
GEOBOL-PNUD et al. (as "crocidolite")
GEOBOL-PNUD
          • Cristalmayu
GEOBOL-PNUD et al. (as "crocidolite")
Alfredo Petrov
Alfredo Petrov collection
            • Capilla Pampa
GEOBOL-PNUD et al. (as "crocidolite")
            • Cristalmayu valley
Alfredo Petrov collection
Federico Ahlfeld and Jorge Muñoz Reyes (1955)
GEOBOL-PNUD et al. (as "crocidolite")
GEOBOL-PNUD et al. (as "crocidolite")
GEOBOL-PNUD et al. (as "crocidolite")
                • Paraje Uno
GEOBOL-PNUD et al. (as "crocidolite")
GEOBOL-PNUD et al. (as crocidolite")
        • El Palmar subdistrict
GEOBOL-PNUD et al. (as "crocidolite")
GEOBOL-PNUD et al. (as "crocidolite")
        • Limbo subdistrict
Alfredo Petrov field studies +1 other reference
Federico Ahlfeld and Jorge Muñoz Reyes (1955)
Bulgaria
 
  • Stara Zagora Province
    • Kazanlak Municality
      • Shipka
Dyulgerov +2 other references
Canada
 
  • British Columbia
    • Cariboo Mining Division
      • Wicheeda Lake
Dalsin (2013) +1 other reference
    • Omineca Mining Division
      • Pinchi Lake
Ghent et al. (1990)
  • Newfoundland and Labrador
    • Labrador
      • Carol Lake
Klein (1966)
      • Wabush Lake
Klein (1966)
  • Québec
    • Outaouais
      • Les Collines-de-l'Outaouais RCM
May 1984 +4 other references
China
 
  • Inner Mongolia
    • Baotou City (Baotou Prefecture)
      • Bayan Obo mining district
        • Bayan Obo
Smith (2006) +2 other references
Liu +1 other reference
          • Dulahala
Yang et al. (2003)
  • Liaoning
    • Dandong
      • Kuandian County
        • Saima complex
Yiming Zhao and Daxin Li (2003)
  • Sichuan
    • Liangshan Yi
      • Mianning County
Denghong Wang et al. (2000)
  • Tibet
    • Nagchu Prefecture (Naqu Prefecture)
      • Shuanghu Co.
        • Shuanghu
Kapp et al. (2000)
    • Ngari
      • Gêrzê Co.
Ding et al. (2003) +1 other reference
  • Xinjiang
    • Akesu Prefecture (Aksu Prefecture; Aqsu Prefecture)
      • Baicheng Co. (Bay Co.)
Yanling Tang (2005)
Greece
 
  • Attica
    • East Attica
      • Lavreotiki
        • Lavrion mining district
          • Velatouri
            • Siri mines
50. +1 other reference
  • Central Greece
    • Euboea
P. Xypolias et al. (2012)
India
 
  • Karnataka
    • Chikkamagaluru District
C. S. Pichamuthu (1950)
  • Madhya Pradesh
    • Jhabua District
Hawthorne et al. (2008)
  • Rajasthan
    • Ajmer District
Niyogi (1966)
    • Udaipur Division
      • Udaipur District
Viladkar
  • Telangana
    • Nalgonda District
Kaur et al. (2017)
Talukdar et al. (2018)
Italy
 
  • Aosta Valley
    • Nus
      • Saint-Barthélemy
Barresi et al. (2005) +1 other reference
  • Basilicata
    • Potenza Province
Laurita +1 other reference
  • Lombardy
    • Sondrio Province
      • Lanzada
        • Scerscen Valley
Bedognè et al. (1993) +1 other reference
  • Piedmont
    • Cuneo Province
      • Bellino
Piccoli et al. (2007)
      • Canosio
        • Vallone della Valletta
Cámara et al. (2014) +1 other reference
    • Metropolitan City of Turin
      • Pragelato
Piccoli et al. (2007)
Piccoli et al. (2007)
      • Sparone
M.E. Ciriotti +1 other reference
  • Tuscany
    • Grosseto Province
Azzaro E. et al. (1977)
Azzaro E. et al. (1977)
Azzaro E. et al. (1977)
Japan
 
  • Niigata Prefecture
    • Itoigawa City
      • Ōmi
        • Hashidate
Yamada (2004)
Hiroaki Tano specimen
  • Tokushima Prefecture
    • Tokushima City
Miyashiro et al. (1957)
    • Yoshinogawa City
      • Yamakawa-cho
Petrology exhibit at Stone Fair
  • Wakayama Prefecture
    • Iwade city
      • Afuzu-mura
BANNO et al. (2019)
Kazakhstan
 
  • Ulytau Region
    • Ulytau District
Box
Madagascar
 
  • Amoron'i Mania
Royal Museum for Central Africa
      • Itremo
        • Imorona valley
Behier (1963) +1 other reference
Myanmar
 
  • Kachin State
    • Mohnyin District
      • Hpakant Township (Hpakan; Phakant; Phakan)
        • Hpakant-Tawmaw Jade Tract
          • Hpakant (Hpakan; Phakant; Phakan)
Jing Wang et al. (2013)
Namibia
 
  • Otjozondjupa Region
    • Omatako Constituency
von Bezing (2007)
New Zealand
 
  • West Coast Region
    • Westland District
Cooper (1996)
      • Okuru River
Cooper (1996)
North Macedonia
 
  • Kavadarci Municipality
    • Ržanovo
Todor Serafimovski et al. (2012)
  • Veles Municipality
    • Nežilovo
      • Jakupica Mountains
        • Babuna Valley
Jančev et al. (2017)
Chukanov et al. (2015)
Pakistan
 
  • Khyber Pakhtunkhwa Province
    • Khyber District
Mian et al. (1986)
Portugal
 
  • Bragança
    • Macedo de Cavaleiros
      • Bornes
Ribeiro (1987)
Romania
 
  • Harghita County
Pál Molnár (2000)
    • Gheorgheni
Szakáll et al. (2010)
  • Suceava County
    • Cârlibaba
      • Cârlibaba
Hârtopanu et al. (1996) +1 other reference
    • Iacobeni
minerals-of-the-carpathians.eu (2008)
Russia
 
  • Chelyabinsk Oblast
    • Vishnevye Mountains
webmineral.ru (2016)
  • Irkutsk Oblast
    • Vitim Plateau
      • Biraya and Bya Rivers confluence area (Chara Basin)
        • Biraya Fe-REE ore occurrence
Pavel.M. Kartashov (n.d.)
  • Kursk Oblast
    • Kursk Magnet Anomaly
Pavel M. Kartashov analytical data 2020
  • Murmansk Oblast
    • Khibiny Massif
Konopleva et al. (2008)
...
Spain
 
  • Andalusia
    • Málaga
      • Antequera
- (alleged by some collectors to colour the quartz blue, but might be mistaken ID) +2 other references
  • Valencian Community
    • Castellón
      • Altura
Adrian Pesudo Collection
Sweden
 
  • Jönköping County
    • Jönköping
      • Gränna
www.handbookofmineralogy.org (2008)
Switzerland
 
  • Grisons
    • Maloja Region
      • Bregaglia
Philipp. R. (1982) +1 other reference
        • Upper Val Bregaglia
          • Casaccia
Philipp (1982)
          • Vicosoprano
Stalder et al. (1998)
      • Sils im Engadin/Segl
Philipp. R. (1982) +1 other reference
Philipp. R. (1982) +1 other reference
    • Viamala Region
      • Ferrera
        • Ausserferrera
Brugger (1996) +1 other reference
  • Valais
    • Brig
      • Termen
        • Rosswald
Stalder et al. (1998)
UK
 
  • Scotland
    • Highland
      • Aird and Loch Ness
        • South Clunes
Deans et al. (1971) +1 other reference
Ukraine
 
Roberto Bosi collection
USA
 
  • California
    • Mendocino County
      • Coastal Range
        • Laytonville
Onucki et al. (1969) +1 other reference
    • Sonoma County
Peter Cristofono
  • Colorado
    • Fremont County
      • Gem Park complex
Eckel et al. (1997)
Tank (1972)
  • Michigan
    • Marquette County
      • Palmer
Heinrich et al. (2004)
  • Minnesota
    • Crow Wing County
      • Cuyuna North Range
McSwiggen et al. (1994)
  • Montana
    • Lincoln County
      • Libby Mining District (Snowshoe Mining District)
        • Libby
American Mineralogist +1 other reference
  • New Jersey
    • Somerset County
      • Bernards Township
Maertens (2007)
    • Sussex County
      • Franklin
Dunn (1995)
FOMS Millsite Committee (1986)
Dunn (1995)
  • New York
    • Westchester County
      • Cortlandt Township
SEM/EDS analysis by Excalibur Mineral ...
  • Utah
    • Duchesne County
Bullock (1981)
Milton et al. (1960)
Pabst (1973)
  • Wyoming
    • Fremont County
      • South Pass-Atlantic City Mining District
        • Atlantic City
James Cheshire collection
 
Mineral and/or Locality  
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