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Ferri-kaersutite
A valid IMA mineral species
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About Ferri-kaersutite
Formula:
NaCa2(Mg3Fe3+Ti)(Si6Al2O22)O2
The Kaersutite group minerals are WO2- dominant amphiboles defined with:
A(Na+K+2Ca)> 0.5 apfu,
B: Ca dominant
CTi > 0.5 apfu and
WO > 1.0 apfu
Ferri-kaersutite is defined with:
A position: Na dominant
C2+ position: Mg dominant
C3+ position: Fe dominant
A(Na+K+2Ca)> 0.5 apfu,
B: Ca dominant
CTi > 0.5 apfu and
WO > 1.0 apfu
Ferri-kaersutite is defined with:
A position: Na dominant
C2+ position: Mg dominant
C3+ position: Fe dominant
Colour:
Brown
Lustre:
Vitreous
Crystal System:
Monoclinic
Name:
For its relationship to kaersutite.
Type Locality:
Ferri-kaersutite is a member of the kaersutite root-name group within the w(O)-dominant amphiboles. It is closely related to kaersutite and other Ti-rich calcic amphiboles, and many literature references to âkaersutiteâ may include material that would today (after 2012) be classified as ferri-kaersutite. The distinction is not always made in older or less detailed studies, partly because identification depends on reliable handling of FeÂČâș/FeÂłâș and O/OH relationships.
Ferri-kaersutite occurs in the same broad geological environments as kaersutite: alkaline volcanic rocks, gabbros, volcanic ejecta and related alkaline magmatic settings. The occurnce as dark brown to black prismatic microcrystals in vugs in lava xenoliths in the volcanic Eifel area of Germany, where it has been identified by EMPA and SXRD, is noteworthy. This vug occurrence is unusual for a kaersutite-group mineral and may reflect stabilisation by fluorine at relatively low pressure-temperature conditions.
As with other oxo-amphiboles, identification of ferri-kaersutite should be treated with caution unless supported by suitable analytical data. EMPA is commonly used and is generally accepted, but it does not directly determine H, the O/OH ratio, or the FeÂČâș/FeÂłâș ratio. These factors are critical for distinguishing ferri-kaersutite from kaersutite, ferro-kaersutite, and neighbouring Ti-rich pargasite-, hastingsite-, oxo-pargasite- and oxo-hastingsite-root-name compositions. High Ti content may indicate kaersutitic affinity, but individual specimens require analysis for confident species-level identification.
A fluorine-dominant analogue is known: 'Unnamed (F-dominant analogue of ferri-kaersutite)'.
Ferri-kaersutite occurs in the same broad geological environments as kaersutite: alkaline volcanic rocks, gabbros, volcanic ejecta and related alkaline magmatic settings. The occurnce as dark brown to black prismatic microcrystals in vugs in lava xenoliths in the volcanic Eifel area of Germany, where it has been identified by EMPA and SXRD, is noteworthy. This vug occurrence is unusual for a kaersutite-group mineral and may reflect stabilisation by fluorine at relatively low pressure-temperature conditions.
As with other oxo-amphiboles, identification of ferri-kaersutite should be treated with caution unless supported by suitable analytical data. EMPA is commonly used and is generally accepted, but it does not directly determine H, the O/OH ratio, or the FeÂČâș/FeÂłâș ratio. These factors are critical for distinguishing ferri-kaersutite from kaersutite, ferro-kaersutite, and neighbouring Ti-rich pargasite-, hastingsite-, oxo-pargasite- and oxo-hastingsite-root-name compositions. High Ti content may indicate kaersutitic affinity, but individual specimens require analysis for confident species-level identification.
A fluorine-dominant analogue is known: 'Unnamed (F-dominant analogue of ferri-kaersutite)'.
Unique Identifiers
Mindat ID:
42829
Long-form identifier:
mindat:1:1:42829:3
Similar Names
| Ferrikaersutite | A synonym of Oxo-magnesio-hastingsite | |
| Ferro-kaersutite | A named amphibole that is NOT (yet) an approved mineral species | NaCa2(Fe32+AlTi)(Si6Al2O22)O2 |
IMA Classification of Ferri-kaersutite
Approved
IMA Formula:
NaCa2(Mg3Fe3+Ti4+)(Si6Al2)O22O2
Approval year:
2014
Approval history:
Ferri-kaersutite was originally described from the Deeti volcanic cone, Gregory Rift, Rift Valley Province, Kenya (IMA2011-035). This material was later renamed Oxo-magnesio-hastingsite by Zaitsev et al.(2013) as a consequence of changed definitions in the 2012 amphibole nomenclature report. Ferri-kaersutite was published from Harrow Peaks, Victoria Land, Eastern Antarctica, Antarctica by Gentili et al. (2016, IMA 2014-051).
The chemical formula of kaersutite has been changed in the 2012 amphibole nomenclature from NaCa2(Mg4Ti)(Al2Si6O22)(OH)O to NaCa2(Mg3AlTi}(Al2Si6O22)O2 thus adding WO > 1.0 apfu to the CTi > 0.5 apfu requirement to the definition of the mineral, and increasing the limit for O content.
The chemical formula of kaersutite has been changed in the 2012 amphibole nomenclature from NaCa2(Mg4Ti)(Al2Si6O22)(OH)O to NaCa2(Mg3AlTi}(Al2Si6O22)O2 thus adding WO > 1.0 apfu to the CTi > 0.5 apfu requirement to the definition of the mineral, and increasing the limit for O content.
Classification of Ferri-kaersutite
9.DE.15
9 : SILICATES (Germanates)
D : Inosilicates
E : Inosilicates with 2-periodic double chains, Si4O11; Clinoamphiboles
9 : SILICATES (Germanates)
D : Inosilicates
E : Inosilicates with 2-periodic double chains, Si4O11; Clinoamphiboles
Mineral Symbols
As of 2021 there are now IMAâCNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
Please only use the official IMAâCNMNC symbol. Older variants are listed for historical use only.
Please only use the official IMAâCNMNC symbol. Older variants are listed for historical use only.
| Symbol | Source | Reference for Standard |
|---|---|---|
| Fkrs | IMAâCNMNC | Warr, L.N. (2021). IMAâCNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
| Fkrs | Whitney & Evans (2010) | Whitney, D.L. and Evans, B.W. (2010) Abbreviations for names of rock-forming minerals. American Mineralogist, 95, 185â187 doi:10.2138/am.2010.3371 |
Physical Properties of Ferri-kaersutite
Chemistry of Ferri-kaersutite
Mindat Formula:
NaCa2(Mg3Fe3+Ti)(Si6Al2O22)O2
The Kaersutite group minerals are WO2- dominant amphiboles defined with:
A(Na+K+2Ca)> 0.5 apfu,
B: Ca dominant
CTi > 0.5 apfu and
WO > 1.0 apfu
Ferri-kaersutite is defined with:
A position: Na dominant
C2+ position: Mg dominant
C3+ position: Fe dominant
The Kaersutite group minerals are WO2- dominant amphiboles defined with:
A(Na+K+2Ca)> 0.5 apfu,
B: Ca dominant
CTi > 0.5 apfu and
WO > 1.0 apfu
Ferri-kaersutite is defined with:
A position: Na dominant
C2+ position: Mg dominant
C3+ position: Fe dominant
Element Weights:
Chemical Analysis
Oxide wt%:
| 1 | 2 | |
|---|---|---|
| SiO2 | 40.35 % | 38.59 % |
| TiO2 | 4.47 % | 4.75 % |
| Al2O3 | 11.95 % | 13.39 % |
| FeO | 17.81 % | 14.88 % |
| MnO | 0.32 % | 0.41 % |
| MgO | 8.23 % | 10.54 % |
| CaO | 9.43 % | 10.68 % |
| Na2O | 2.81 % | 2.4 % |
| K2O | 2.15 % | 1.26 % |
| Total: | 97.52 % | 96.9 % |
Sample references:
| ID | Locality | Reference | Notes |
|---|---|---|---|
| 1 | Elchuru Complex, Prakasam District, Andhra Pradesh, India | Sample from nepheline-syenite. | |
| 2 | Red Hill, Moultonborough, Carroll County, New Hampshire, USA | Sample from a lamprophyric dike |
Crystallography of Ferri-kaersutite
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/m
Setting:
C2/m
Cell Parameters:
a = 9.8378(8) Å, b = 18.0562(9) Å, c = 5.3027(4) Å
β = 105.199(9)°
β = 105.199(9)°
Ratio:
a:b:c = 0.545 : 1 : 0.294
Unit Cell V:
908.99 Ă
Âł
Z:
2
Morphology:
Prismatic crystals, up to 200 ÎŒm in length (TL).
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 8.4 Ă | (s) |
| 3.379 Ă | (ms) |
| 3.266 Ă | (m) |
| 3.115 Ă | (ms) |
| 2.938 Ă | (m) |
| 2.707 Ă | (s) |
| 2.598 Ă | (ms) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| 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 Ferri-kaersutite
General Appearance of Type Material:
Brown prismatic crystals, up to 200 ÎŒm in length.
Place of Conservation of Type Material:
Type material is deposited in the collections of the Museo di Storia Naturale, Universita` di Pisa, Via Roma 79, Calci (Pisa), Italy, catalogue number 19689
Associated Minerals at Type Locality:
Synonyms of Ferri-kaersutite
Sodic amphibole (in part)
Other Language Names for Ferri-kaersutite
Relationship of Ferri-kaersutite to other Species
Other Members of Kaersutite Root Name Group:
| 'Ferro-kaersutite' | NaCa2(Fe2+3AlTi)(Si6Al2O22)O2 | Mon. |
| Kaersutite | NaCa2(Mg3AlTi4+)(Si6Al2)O22O2 | Mon. 2/m : B2/m |
| 'Potassic-ferri-kaersutite' | KCa2(Mg3Fe3+Ti)(Si6Al2)O22O2 | Mon. 2/m : B2/m |
Common Associates
Associations Based on Photo Data:
| 6 photos of Ferri-kaersutite associated with Mica Group | |
| 3 photos of Ferri-kaersutite associated with Nepheline | Na3K(Al4Si4O16) |
| 1 photo of Ferri-kaersutite associated with 'Nepheline-syenite' | |
| 1 photo of Ferri-kaersutite associated with Phlogopite | KMg3(AlSi3O10)(OH)2 |
| 1 photo of Ferri-kaersutite associated with Fluorapatite | Ca5(PO4)3F |
| 1 photo of Ferri-kaersutite associated with Sodalite | Na4(Si3Al3)O12Cl |
Related Minerals - Strunz-mindat Grouping
| 9.DE. | Shojiite | Na(NaMg)Mg5Si8O22(OH)2 |
| 9.DE. | Clino-suenoite | â»Mn2+2(Mg5)(Si8O22)(OH)2 |
| 9.DE. | Mangani-eckermannite | NaNa2(Mg4Mn3+)Si8O22(OH)2 |
| 9.DE.05 | 'Permanganogrunerite' | â»{Mn2+2}{Mn2+5}(Si8O22)(OH)2 |
| 9.DE.05 | Cummingtonite | â»Mg2Mg5(Si8O22)(OH)2 |
| 9.DE.05 | Ferri-fluoro-leakeite | NaNa2(Mg2Fe3+2Li)(Si8O22)F2 |
| 9.DE.05 | Grunerite | â»Fe2+2Fe2+5(Si8O22)(OH)2 |
| 9.DE.05 | Clino-holmquistite Root Name Group | â»Li2(C2+3C3+2)(Si8O22)w2 |
| 9.DE.10 | Actinolite | â»Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| 9.DE.10 | Fluoro-cannilloite | CaCa2(Mg4Al)(Si5Al3)O22F2 |
| 9.DE.10 | Joesmithite | Pb2+Ca2(Mg3Fe3+2)(Si6Be2)O22(OH)2 |
| 9.DE.10 | Clino-ferro-suenoite | â»Mn2+2(Fe2+5)(Si8O22)(OH)2 |
| 9.DE.10 | Fluoro-tremolite | â»Ca2Mg5(Si8O22)F2 |
| 9.DE.10 | 'Parvo-manganotremolite' | â»{CaMn2+}{Mg5}(Si8O22)(OH)2 |
| 9.DE.10 | Magnesio-ferri-hornblende | â»Ca2(Mg4Fe3+)[(Si7Al)O22](OH)2 |
| 9.DE.10 | Ferro-ferri-hornblende | â»Ca2(Fe2+4Fe3+)(AlSi7O22)(OH)2 |
| 9.DE.10 | 'Ferro-cannilloite' | CaCa2(Fe2+4Al)(Si5Al3O22)OH2 |
| 9.DE.10 | 'Ferro-ferri-cannilloite' | CaCa2(Fe2+4Fe3+)(Si5Al3O22)OH2 |
| 9.DE.10 | 'Ferro-fluoro-actinolite' | â»{Ca2}{Fe5}(Si8O22)F2 |
| 9.DE.10 | 'Ferro-fluoro-hornblende' | â»Ca2(Fe2+4Al)(AlSi7O22)F2 |
| 9.DE.10 | Magnesio-ferri-fluoro-hornblende | â»Ca2(Mg4Fe3+)(AlSi7O22)F2 |
| 9.DE.10 | 'Ferro-ferri-fluoro-hornblende' | â»Ca2(Fe2+4Fe3+)(AlSi7O22)F2 |
| 9.DE.10 | 'Ferri-fluoro-tschermakite' | â»{Ca2}{Mg3Fe3+2}(Al2Si6O22)F2 |
| 9.DE.10 | 'Ferro-ferri-fluoro-tschermakite' | â»{Ca2}{Fe2+3Fe3+2}(Al2Si6O22)F2 |
| 9.DE.10 | 'Ferro-fluoro-tschermakite' | â»{Ca2}{Fe2+3Al2}(Al2Si6O22)F2 |
| 9.DE.10 | 'Fluoro-tschermakite' | â»{Ca2}{Mg3Al2}(Al2Si6O22)F2 |
| 9.DE.10 | 'Magnesio-fluoro-hornblende' | â»Ca2(Mg4Al)(AlSi7O22)F2 |
| 9.DE.10 | Tremolite | â»Ca2Mg5(Si8O22)(OH)2 |
| 9.DE.10 | 'Ferro-ferri-tschermakite' | â»{Ca2}{Fe2+3Fe3+2}(Al2Si6O22)(OH)2 |
| 9.DE.10 | 'Cannilloite' | CaCa2(Mg4Al)(Si5Al3O22)OH2 |
| 9.DE.10 | Tschermakite | â»Ca2(Mg3Al2)(Al2Si6O22)(OH)2 |
| 9.DE.10 | Magnesio-hornblende | â»Ca2(Mg4Al)(Si7Al)O22(OH)2 |
| 9.DE.10 | 'Ferri-tschermakite' | â»Ca2(Mg3Fe3+2)(Al2Si6O22)(OH)2 |
| 9.DE.10 | Ferro-actinolite | â»Ca2Fe2+5(Si8O22)(OH)2 |
| 9.DE.10 | Ferro-hornblende | â»Ca2(Fe2+4Al)(Si7Al)O22(OH)2 |
| 9.DE.10 | Ferro-tschermakite | â»Ca2(Fe2+3Al2)(Al2Si6O22)(OH)2 |
| 9.DE.15 | Potassic-chloro-pargasite | KCa2(Mg4Al)(Si6Al2)O22Cl2 |
| 9.DE.15 | 'Ferro-fluoro-pargasite' | (Na)(Ca2)(Fe2+4Al)(Al2Si6O22)F2 |
| 9.DE.15 | 'Potassic-ferro-chloro-edenite' | KCa2Fe2+5(AlSi7O22)Cl2 |
| 9.DE.15 | 'Ferro-ferri-sadanagaite' | NaCa2(Fe2+3Fe3+2)(Al3Si5O22)(OH)2 |
| 9.DE.15 | Hastingsite | NaCa2(Fe2+4Fe3+)(Si6Al2)O22(OH)2 |
| 9.DE.15 | Fluoro-edenite | NaCa2Mg5(Si7Al)O22F2 |
| 9.DE.15 | Pargasite | NaCa2(Mg4Al)(Si6Al2)O22(OH)2 |
| 9.DE.15 | Magnesio-fluoro-hastingsite | NaCa2(Mg4Fe3+)(Si6Al2)O22F2 |
| 9.DE.15 | Potassic-fluoro-hastingsite | KCa2(Fe2+4Fe3+)(Si6Al2)O22F2 |
| 9.DE.15 | Potassic-chloro-hastingsite | KCa2(Fe2+4Fe3+)(Si6Al2)O22Cl2 |
| 9.DE.15 | 'Unnamed (F-dominant analogue of Ferri-kaersutite)' | (Na,K)Ca2[Mg3(Fe3+,Fe2+)Ti](Si6Al2O22)(F,O)2 |
| 9.DE.15 | Edenite | NaCa2Mg5(Si7Al)O22(OH)2 |
| 9.DE.15 | Potassic-sadanagaite | KCa2(Mg3Al2)(Al3Si5O22)(OH)2 |
| 9.DE.15 | Potassic-pargasite | KCa2(Mg4Al)(Si6Al2)O22(OH)2 |
| 9.DE.15 | Potassic-ferro-sadanagaite | KCa2(Fe2+3Al2)(Al3Si5O22)(OH)2 |
| 9.DE.15 | Kaersutite | NaCa2(Mg3AlTi4+)(Si6Al2)O22O2 |
| 9.DE.15 | 'Ferro-chloro-pargasite' | NaCa2(Fe2+4Al)(Al2Si6O22)Cl2 |
| 9.DE.15 | Potassic-fluoro-pargasite | KCa2(Mg4Al)(Si6Al2)O22F2 |
| 9.DE.15 | Potassic-ferro-ferri-sadanagaite | KCa2(Fe2+3Fe3+2)(Al3Si5O22)(OH)2 |
| 9.DE.15 | Fluoro-pargasite | NaCa2(Mg4Al)(Si6Al2)O22F2 |
| 9.DE.15 | 'Parvo-mangano-edenite' | {Na}{CaMn2+}{Mg5}(AlSi7O22)(OH)2 |
| 9.DE.15 | Ferro-fluoro-edenite | NaCa2Fe2+5(AlSi7O22)F2 |
| 9.DE.15 | Mangani-pargasite | NaCa2(Mg4Mn3+)(Si6Al2)O22(OH)2 |
| 9.DE.15 | Sadanagaite | NaCa2(Mg3Al2)(Si5Al3O22)(OH)2 |
| 9.DE.15 | Magnesio-hastingsite | NaCa2(Mg4Fe3+)(Si6Al2)O22(OH)2 |
| 9.DE.15 | 'Ferri-sadanagaite' | NaCa2(Mg3Fe3+2)(Al3Si5O22)(OH)2 |
| 9.DE.15 | 'Ferro-sadanagaite' | NaCa2(Fe3Al2)(Al3Si5O22)(OH)2 |
| 9.DE.15 | 'Ferri-fluoro-sadanagaite' | {Na}{Ca2}{Mg3Fe3+2}(Al3Si5O22)F2 |
| 9.DE.15 | 'Ferro-ferri-fluoro-sadanagaite' | {Na}{Ca2}{Fe2+3Fe3+2}(Al3Si5O22)F2 |
| 9.DE.15 | 'Ferro-fluoro-sadanagaite' | {Na}{Ca2}{Fe2+3Al2}(Al3Si5O22)F2 |
| 9.DE.15 | 'Fluoro-sadanagaite' | {Na}{Ca2}{Mg3Al2}(Al3Si5O22)F2 |
| 9.DE.15 | 'Potassic-chloro-sadanagaite' | KCa2(Mg3Al2)(Al3Si5O22)Cl2 |
| 9.DE.15 | 'Potassic-ferro-chloro-sadanagaite' | KCa2(Fe2+3Al2)(Al3Si5O22)Cl2 |
| 9.DE.15 | Ferro-edenite | NaCa2Fe2+5(Si7Al)O22(OH)2 |
| 9.DE.15 | Oxo-magnesio-hastingsite | NaCa2(Mg3(Fe3+2-x,Tix))5(Si6Al2O22)O2 |
| 9.DE.15 | Potassic-ferro-pargasite | KCa2(Fe2+4Al)(Si6Al2)O22(OH)2 |
| 9.DE.15 | Potassic-hastingsite | KCa2(Fe2+4Fe3+)(Al2Si6O22)(OH)2 |
| 9.DE.15 | 'Fluoro-hastingsite' | NaCa2(Fe2+4Fe3+)(Al2Si6O22)F2 |
| 9.DE.15 | Potassic-magnesio-hastingsite | KCa2(Mg4Fe3+)(Si6Al2)O22(OH)2 |
| 9.DE.15 | Vanadio-pargasite | NaCa2(Mg3+4V)(Al2Si6)O22(OH)2 |
| 9.DE.15 | 'Ferro-kaersutite' | NaCa2(Fe2+3AlTi)(Si6Al2O22)O2 |
| 9.DE.15 | Chromio-pargasite | NaCa2(Mg4Cr)(Si6Al2)O22(OH)2 |
| 9.DE.15 | Ferro-pargasite | NaCa2(Fe2+4Al)(Si6Al2)O22(OH)2 |
| 9.DE.20 | 'Ghoseite' | â»[Mn2+Na][Mg4Al]Si8O22(OH)2 |
| 9.DE.20 | Potassic-ferro-taramite | K(CaNa)(Fe2+3Al2)(Si6Al2)O22(OH)2 |
| 9.DE.20 | Ferri-fluoro-katophorite | Na(CaNa)(Mg4Fe3+)(AlSi7O22)F2 |
| 9.DE.20 | Barroisite | â»(CaNa)(Mg3Al2)(AlSi7O22)(OH)2 |
| 9.DE.20 | Fluoro-richterite | Na(CaNa)Mg5(Si8O22)F2 |
| 9.DE.20 | Potassic-ferro-ferri-taramite | K(CaNa)(Fe2+3Fe3+2)(Al2Si6O22)(OH)2 |
| 9.DE.20 | 'Potassic-ferri-katophorite' | K(CaNa)(Mg4Fe3+)(AlSi7O22)(OH)2 |
| 9.DE.20 | 'Potassic-ferro-richterite' | K(CaNa)Fe2+5(Si8O22)(OH)2 |
| 9.DE.20 | Potassic-fluoro-richterite | K(CaNa)Mg5(Si8O22)F2 |
| 9.DE.20 | Potassic-richterite | K(CaNa)Mg5(Si8O22)(OH)2 |
| 9.DE.20 | Ferri-ghoseite | â»(Mn2+Na)(Mg4Fe3+)Si8O22(OH)2 |
| 9.DE.20 | Fluoro-taramite | Na(CaNa)(Mg3Al2)(Al2Si6O22)F2 |
| 9.DE.20 | 'Ferro-ferri-fluoro-katophorite' | Na(CaNa)(Fe2+4Fe3+)(AlSi7O22)F2 |
| 9.DE.20 | Richterite | Na(CaNa)Mg5(Si8O22)(OH)2 |
| 9.DE.20 | Ferri-winchite | â»(NaCa)(Mg4Fe3+)Si8O22(OH)2 |
| 9.DE.20 | 'Fluoro-katophorite' | Na(CaNa)(Mg4Al)(AlSi7O22)F2 |
| 9.DE.20 | Hjalmarite | Na(NaMn)Mg5(Si8O22)(OH)2 |
| 9.DE.20 | Ferro-taramite | Na(CaNa)(Fe2+3Al2)(Al2Si6O22)(OH)2 |
| 9.DE.20 | 'Clinoferroholmquistite' | â»Li2[Fe2+3Al2]Si8O22(OH,F)2 |
| 9.DE.20 | Ferro-katophorite | Na(CaNa)(Fe2+4Al)(AlSi7O22)(OH)2 |
| 9.DE.20 | Taramite | Na(CaNa)(Mg3Al2)(Al2Si6O22)(OH)2 |
| 9.DE.20 | 'Potassic-fluoro-katophorite' | K(CaNa)(Mg4Al)(AlSi7O22)F2 |
| 9.DE.20 | 'Ferro-fluoro-katophorite' | Na(CaNa)(Fe2+4Al)(AlSi7O22)F2 |
| 9.DE.20 | Ferri-katophorite | Na(CaNa)(Mg4Fe3+)(AlSi7O22)(OH)2 |
| 9.DE.20 | 'Ferro-ferri-barroisite' | â»(CaNa)(Fe2+3Fe3+2)(AlSi7O22)(OH)2 |
| 9.DE.20 | Ferri-taramite | Na(CaNa)(Mg3Fe3+2)(Al2Si6O22)(OH)2 |
| 9.DE.20 | 'Potassic-ferro-ferri-katophorite' | K(CaNa)(Fe2+4Fe3+)(AlSi7O22)(OH)2 |
| 9.DE.20 | 'Ferro-ferri-winchite' | â»(CaNa)(Fe2+4Fe3+)Si8O22(OH)2 |
| 9.DE.20 | Winchite | â»(CaNa)(Mg4Al)(Si8O22)(OH)2 |
| 9.DE.20 | 'Ferro-fluoro-richterite' | {Na}{CaNa}{Fe2+5}(Si8O22)F2 |
| 9.DE.20 | 'Fluoro-winchite' | â»(CaNa)(Mg4Al)(Si8O22)F2 |
| 9.DE.20 | 'Ferro-fluoro-winchite' | â»{CaNa}{Fe2+4Al}(Si8O22)F2 |
| 9.DE.20 | 'Ferri-barroisite' | â»(CaNa)(Mg3Fe3+2)(AlSi7O22)(OH)2 |
| 9.DE.20 | 'Ferro-ferri-taramite' | Na(CaNa)(Fe2+3Fe3+2)(Al2Si6O22)(OH)2 |
| 9.DE.20 | 'Ferri-fluoro-barroisite' | â»{CaNa}{Mg3Fe3+2}(AlSi7O22)F2 |
| 9.DE.20 | 'Ferro-fluoro-barroisite' | â»{CaNa}{Fe2+3Al2}(AlSi7O22)F2 |
| 9.DE.20 | 'Ferro-ferri-fluoro-barroisite' | â»{CaNa}{Fe2+3Fe3+2}(AlSi7O22)F2 |
| 9.DE.20 | 'Fluoro-barroisite' | â»{CaNa}{Mg3Al2}(AlSi7O22)F2 |
| 9.DE.20 | Ferro-ferri-katophorite | Na(NaCa)(Fe2+4Fe3+)(Si7Al)O22(OH)2 |
| 9.DE.20 | 'Ferri-fluoro-taramite' | Na(CaNa)(Mg3Fe3+2)(Al2Si6O22)F2 |
| 9.DE.20 | 'Ferro-ferri-fluoro-taramite' | Na(CaNa)(Fe2+3Fe3+2)(Al2Si6O22)F2 |
| 9.DE.20 | 'Ferro-fluoro-taramite' | Na(CaNa)(Fe2+3Al2)(Al2Si6O22)F2 |
| 9.DE.20 | 'Potassic-ferri-taramite' | K(CaNa)(Mg3Fe3+2)(Al2Si6O22)(OH)2 |
| 9.DE.20 | 'Magnesiotaramite' | {Na}{CaNa}{Mg3AlFe3+}(Al2Si6O22)(OH)2 |
| 9.DE.20 | 'Ferro-barroisite' | â»(CaNa)(Fe2+3Al2)(AlSi7O22)(OH)2 |
| 9.DE.20 | Scandio-winchite | â»(NaCa)(Mg4Sc)(Si8O22)(OH)2 |
| 9.DE.20 | Ferro-richterite | Na(CaNa)Fe2+5(Si8O22)(OH)2 |
| 9.DE.20 | Katophorite | Na(CaNa){Mg4Al)(AlSi7O22)(OH)2 |
| 9.DE.20 | 'Ferro-winchite' | â»(CaNa)(Fe2+4Al)(Si8O22)(OH)2 |
| 9.DE.25 | 'Clino-sodic-fluoro-holmquistite' | {Na}{Li2}{Mg4Al}(Si8O22)F2 |
| 9.DE.25 | Ferro-ferri-nybĂžite | NaNa2(Fe2+3,Mg)Fe3+2)(AlSi7O22)(OH)2 |
| 9.DE.25 | Clino-ferro-ferri-holmquistite | â»Li2(Fe2+3Fe3+2)(Si8O22)(OH)2 |
| 9.DE.25 | 'Oxo-pargasite' | NaCa2(Mg3(Al2-xTix))5(Si6Al2O22)O2 |
| 9.DE.25 | 'Ferri-nybĂžite' | NaNa2(Mg3Fe3+2)(AlSi7O22)(OH)2 |
| 9.DE.25 | 'Ferro-ferri-leakeite' | NaNa2(Fe2+2Fe3+2Li)Si8O22(OH)2 |
| 9.DE.25 | Ferro-ferri-fluoro-leakeite | NaNa2(Fe2+2Fe3+2Li)(Si8O22)F2 |
| 9.DE.25 | Ferri-leakeite | NaNa2(Mg2Fe3+2Li)Si8O22(OH)2 |
| 9.DE.25 | Fluoro-pedrizite | NaLi2(Mg2Al2Li)(Si8O22)F2 |
| 9.DE.25 | Eckermannite | NaNa2(Mg4Al}Si8O22(OH)2 |
| 9.DE.25 | Arfvedsonite | NaNa2(Fe2+4Fe3+)Si8O22(OH)2 |
| 9.DE.25 | 'Mangano-ferri-fluoro-leakeite' | NaNa2(Mn2+2Fe3+2Li)(Si8O22)F2 |
| 9.DE.25 | Ferri-obertiite | NaNa2(Mg3Fe3+Ti)Si8O22O2 |
| 9.DE.25 | Riebeckite | â»Na2(Fe2+3Fe3+2)Si8O22(OH)2 |
| 9.DE.25 | 'Unnamed (Possible K-analogue of Ferri-obertiite)' | KNa2((Mg,Fe,Na)3Fe3+(Ti,Fe))Si8O22(O,F)2 |
| 9.DE.25 | Magnesio-fluoro-arfvedsonite | NaNa2(Mg4Fe3+)[Si8O22]F2 |
| 9.DE.25 | 'Ferro-fluoro-glaucophane' | â»[Na2][Fe2+3Al2]Si8O22F2 |
| 9.DE.25 | Oxo-mangani-leakeite | NaNa2(Mn3+4Li)Si8O22O2 |
| 9.DE.25 | Fluoro-leakeite | NaNa2(Mg2Al2Li)(Si8O22)F2 |
| 9.DE.25 | NybĂžite | NaNa2(Mg3Al2)(AlSi7O22)(OH)2 |
| 9.DE.25 | 'Sodic-ferri-clinoferroholmquistite' | Na0.5{Li2}{Fe2+3Fe3+2}(Si8O22)(OH)2 |
| 9.DE.25 | Potassic-arfvedsonite | KNa2(Fe2+4Fe3+)(Si8O22)(OH)2 |
| 9.DE.25 | 'Potassic-mangano-mangani-ungarettiite' | KNa2(Mn2+2Mn3+3)Si8O22O2 |
| 9.DE.25 | Potassic-jeanlouisite | K(NaCa)(Mg4Ti)Si8O22O2 |
| 9.DE.25 | Ferri-pedrizite | NaLi2(Mg2Fe3+2Li)Si8O22(OH)2 |
| 9.DE.25 | Glaucophane | â»Na2(Mg3Al2)Si8O22(OH)2 |
| 9.DE.25 | Ferro-fluoro-pedrizite | NaLi2(Fe2+2Al2Li)[Si8O22]F2 |
| 9.DE.25 | Potassic-ferri-leakeite | KNa2(Mg2Fe3+2Li)(Si8O22)(OH)2 |
| 9.DE.25 | Potassic-magnesio-fluoro-arfvedsonite | KNa2(Mg4Fe3+)(Si8O22)F2 |
| 9.DE.25 | Mangani-obertiite | NaNa2(Mg3Mn3+Ti4+)Si8O22O2 |
| 9.DE.25 | Scandio-fluoro-eckermannite | NaNa2(Mg4Sc)(Si8O22)F2 |
| 9.DE.25 | 'Ferro-eckermannite' | NaNa2(Fe2+4Al)Si8O22(OH)2 |
| 9.DE.25 | Ferro-ferri-pedrizite | NaLi2(Fe2+2Fe3+2Li)Si8O22(OH)2 |
| 9.DE.25 | 'Pedrizite' | NaLi2(LiMg2Al2)(Si8O22)(OH)2 |
| 9.DE.25 | Ferro-pedrizite | NaLi2(Fe2+2Al2Li)Si8O22(OH)2 |
| 9.DE.25 | Potassic-mangani-leakeite | KNa2(Mg2Mn3+2Li)(Si8O22)(OH)2 |
| 9.DE.25 | 'Clino-fluoro-holmquistite' | â»{Li2}{Mg3Al2}(Si8O22)F2 |
| 9.DE.25 | Ferro-ferri-obertiite | NaNa2(Fe2+3Fe3+Ti)Si8O22O2 |
| 9.DE.25 | Magnesio-riebeckite | â»Na2(Mg3Fe3+2)(Si8O22)(OH)2 |
| 9.DE.25 | Potassic-magnesio-arfvedsonite | KNa2(Mg4Fe3+)(Si8O22)(OH)2 |
| 9.DE.25 | Fluoro-nybĂžite | NaNa2(Mg3Al2)(AlSi7O22)(F,OH)2 |
| 9.DE.25 | Mangano-ferri-eckermannite | NaNa2(Mn2+4Fe3+)Si8O22(OH)2 |
| 9.DE.25 | 'Fluoro-glaucophane' | â»[Na2][Mg3Al2]Si8O22F2 |
| 9.DE.25 | Fluoro-riebeckite | â»Na2(Fe2+3Fe3+2)(Si8O22)F2 |
| 9.DE.25 | Magnesio-fluoro-riebeckite | â»Na2(Mg3Fe3+2)(Si8O22)F2 |
| 9.DE.25 | 'Fluoro-eckermannite' | NaNa2(Mg4Al}Si8O22F2 |
| 9.DE.25 | 'Ferro-fluoro-eckermannite' | NaNa2(Fe2+4Al}Si8O22F2 |
| 9.DE.25 | 'Fluoro-arfvedsonite' | NaNa2(Fe2+4Fe3+)Si8O22F2 |
| 9.DE.25 | Magnesio-arfvedsonite | NaNa2(Mg4Fe3+)(Si8O22)(OH)2 |
| 9.DE.25 | 'Ferri-fluoro-nybĂžite' | NaNa2(Mg3Fe3+2)(AlSi7O22)F2 |
| 9.DE.25 | 'Ferro-ferri-fluoro-nybĂžite' | NaNa2(Fe2+3Fe3+2)(AlSi7O22)F2 |
| 9.DE.25 | Ferro-glaucophane | â»Na2(Fe2+3Al2)Si8O22(OH)2 |
| 9.DE.25 | 'Ferro-fluoro-nybĂžite' | NaNa2(Fe2+3Al2)(AlSi7O22)F2 |
| 9.DE.25 | Mangani-dellaventuraite | NaNa2(MgMn3+2Ti4+Li)Si8O22O2 |
| 9.DE.25 | 'Ferro-leakeite' | NaNa2(Fe2+2Al2Li)(Si8O22)(OH)2 |
| 9.DE.25 | 'Leakeite' | NaNa2(Mg2Al2Li)(Si8O22)(OH)2 |
| 9.DE.25 | 'Potassic-leakeite' | KNa2(Mg2Al2Li)(Si8O22)(OH)2 |
| 9.DE.25 | 'Ferri-fluoro-pedrizite' | NaLi2(LiMg2Fe3+2)(Si8O22)F2 |
| 9.DE.25 | 'Ferro-ferri-fluoro-pedrizite' | NaLi2(LiFe2+2Fe3+2)(Si8O22)F2 |
| 9.DE.25 | 'Ferro-nybĂžite' | NaNa2(Fe2+3Al2)(AlSi7O22)(OH)2 |
| 9.DE.25 | 'Clino-ferro-ferri-fluoro-holmquistite' | â»{Li2}{Fe2+3Fe3+2}(Si8O22)F2 |
| 9.DE.25 | Mangano-mangani-ungarettiite | NaNa2(Mn2+2Mn3+3)(Si8O22)O2 |
| 9.DE.25 | 'Clino-ferri-fluoro-holmquistite' | â»{Li2}{Mg3Fe3+2}(Si8O22)F2 |
| 9.DE.25 | 'Clino-ferro-fluoro-holmquistite' | â»{Li2}{Fe2+3Al2}(Si8O22)F2 |
Other Information
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 Ferri-kaersutite
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References for Ferri-kaersutite
Reference List:
Kent Brooks, C., Platt, R. G. (1975) Kaersutite-bearing gabbroic inclusions and the late dike swarm of Kangerdlugssuaq, East Greenland. Mineralogical Magazine, 40 (311) 259-283 doi:10.1180/minmag.1975.040.311.07
Williams, P. A., Hatert, F., Pasero, M., Mills, S. J. (2011) New minerals and nomenclature modifications approved in 2011, CNMNC Newsletter No. 10. Mineralogical Magazine, 75 (5) 2549-2561 doi:10.1180/minmag.2011.075.5.2549
Hawthorne, F. C., Oberti, R., Harlow, G. E., Maresch, W. V., Martin, R. F., Schumacher, J. C., Welch, M. D. (2012) Nomenclature of the amphibole supergroup. American Mineralogist, 97 (11) 2031-2048 doi:10.2138/am.2012.4276
Zaitsev, A. N., Avdontseva, E. Yu., Britvin, S. N., Demény, A., Homonnay, Z., Jeffries, T. E., Keller, J., Krivovichev, V. G., Markl, G., Platonova, N. V., Siidra, O. I., Spratt, J., Vennemann, T. (2013) Oxo-magnesio-hastingsite, NaCa2(Mg2Fe3+3 )(Al2Si6)O22O2, a new anhydrous amphibole from the Deeti volcanic cone, Gregory rift, northern Tanzania. Mineralogical Magazine, 77 (6) 2773-2792 doi:10.1180/minmag.2013.077.6.06
Williams, P. A., Hatert, F., Pasero, M., Mills, S. J. (2014) IMA Commission on New Minerals, Nomenclature and Classification (CNMNC), CNMNC Newsletter No. 22. Mineralogical Magazine, 78 (5) 1241-1248 doi:10.1180/minmag.2014.078.5.10
Gentili, Silvia, Biagioni, Cristian, Comodi, Paola, Pasero, Marco, McCammon, Catherine, Bonadiman, Costanza (2016) Ferri-kaersutite, NaCa2(Mg3TiFe3+)(Si6Al2)O22O2, a new oxo-amphibole from Harrow Peaks, Northern Victoria Land, Antarctica. American Mineralogist, 101 (2) 461-468 doi:10.2138/am-2016-5204
Localities for Ferri-kaersutite
Showing 13 localities.
symbol to view information about a locality.
The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
â - 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).
All localities listed without proper references should be considered as questionable.
Antarctica (TL) | |
| Williams et al. (2011) +2 other references |
Bosnia and Herzegovina | |
| UstaliÄ et al. (2024) |
Canada | |
| GREENWOOD et al. (1984) +1 other reference |
| Martin et al. (2016) |
Cuba | |
| Pujol-SolĂ et al. (2020) |
Germany | |
| Nikita Chukanov exchange list +1 other reference |
| in the collection of Christof SchÀfer |
| in the collection of Christof SchÀfer. ... |
Greenland | |
| Kent Brooks et al. (1975) |
India | |
| Upadhyay et al. (2006) |
Pacific Ocean | |
| Peretyazhko et al. (2022) |
Portugal | |
| Miranda (2010) |
USA | |
| DORAIS et al. (1992) +1 other reference |
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Nickenicher Sattel, Nickenich, Pellenz, Mayen-Koblenz, Rhineland-Palatinate, Germany