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⇱ Ferro-ferri-hornblende: Mineral information, data and localities.

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Ferro-ferri-hornblende

A valid IMA mineral species
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About Ferro-ferri-hornblendeHide

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Formula:
◻Ca2(Fe2+4Fe3+)(AlSi7O22)(OH)2
Defined as a an amphibole in the magnesiohornblende group of the Calcium subgroup with Fe2+Mg and Fe3+Al in the C position and with (OH) as the dominant anion in the W position
Colour:
Dark greenish
Lustre:
Vitreous
Specific Gravity:
3.362
Crystal System:
Monoclinic
Name:
Named in 1789 by Abraham Gottlieb Werner from an old German term for dark minerals with no ore value and from "blende", meaning to deceive. The prefix ferro-ferri is in alignment with the guidelines in the latest amphibole nomenclature (Hawthorne et al. 2012)
The mineral was originally described by Luigi Colomba in 1914 as "speziaite", a name never approved by IMA, and discredited by Leake (1978) as a variety of hornblende. As the type material exhibit intergrowths of ferro-ferri-hornblende and hastingsite and magnesio-hastingsite, "speziaite" should not be considered a synonym of ferri-ferro-hornblende.

The type was defined by Oberti et al. (2016) from a rock specimen (catalogued as "speziaite"), from the historical collection of Leandro De Magistris, which was collected at the Traversella Mine (Val Chiusella, Torino, Piemonte, Italy).


Unique IdentifiersHide

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Mindat ID:
43379
Long-form identifier:
mindat:1:1:43379:0

IMA Classification of Ferro-ferri-hornblendeHide

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Approved
IMA Formula:
◻Ca2(Fe2+4Fe3+)(Si7Al)O22(OH)2
Approval year:
2015
First published:
2016

Classification of Ferro-ferri-hornblendeHide

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9.DE.10

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

Mineral SymbolsHide

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

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

Pronunciation of Ferro-ferri-hornblendeHide

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Pronunciation:
PlayRecorded byCountry
Jolyon RalphUnited Kingdom

Physical Properties of Ferro-ferri-hornblendeHide

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Vitreous
Transparency:
Transparent
Colour:
Dark greenish
Tenacity:
Brittle
Cleavage:
Perfect
on {110}
Density:
3.362 g/cm3 (Measured)    3.35 g/cm3 (Calculated)

Optical Data of Ferro-ferri-hornblendeHide

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Type:
Biaxial (-)
RI values:
nα = 1.697 nβ = 1.722 nγ = 1.726
2V:
Measured: 35.7° , Calculated: 43.1°
Max. Birefringence:
δ = 0.029
Based on recorded range of RI values above.

Interference Colours:
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.

Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.

Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars.

Surface Relief:
Moderate
Optical Extinction:
X ∧ a = 26.2° (β obtuse); Y = b ; Z ∧ c = 11.5° (β acute).
Pleochroism:
Visible
Comments:
X = medium gold/brown; Y = dark brown/black; Z = dark grey.
Comments:
Absorption: Y > Z > X.

Chemistry of Ferro-ferri-hornblendeHide

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Mindat Formula:
◻Ca2(Fe2+4Fe3+)(AlSi7O22)(OH)2

Defined as a an amphibole in the magnesiohornblende group of the Calcium subgroup with Fe2+Mg and Fe3+Al in the C position and with (OH) as the dominant anion in the W position
Element Weights:
Element% weight
O39.629 %
Fe28.817 %
Si20.290 %
Ca8.272 %
Al2.785 %
H0.208 %

Calculated from ideal end-member formula.

Chemical AnalysisHide

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Oxide wt%:
 1
SiO243.68 %
TiO21.27 %
Al2O35.33 %
FeO27.96 %
MnO0.98 %
MgO5.55 %
CaO10.27 %
Na2O1.29 %
K2O0.76 %
Total:97.09 %

Crystallography of Ferro-ferri-hornblendeHide

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Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/m
Setting:
C2/m
Cell Parameters:
a = 9.9307(1) Å, b = 18.223(5) Å, c = 5.3190(3) Å
β = 104.857(1)°
Ratio:
a:b:c = 0.545 : 1 : 0.292
Unit Cell V:
930.38 ų (Calculated from Unit Cell)
Morphology:
As acicular or lamellar crystals.

X-Ray Powder DiffractionHide

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Powder Diffraction Data:
d-spacingIntensity
8.493 Å(100)
3.406 Å(26)
3.151 Å(47)
2.728 Å(69)
2.615 Å(32)
2.555 Å(37)
2.359 Å(38)
2.180 Å(25)
Comments:
Traversella Mine, Piedmont, Italy. The data are from Oberti et al. (2016).

Geological EnvironmentHide

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Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
High-? alteration and/or metamorphism
31 : Thermally altered carbonate, phosphate, and iron formations

Type Occurrence of Ferro-ferri-hornblendeHide

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General Appearance of Type Material:
Aggregates of crystals embedded in a matrix of fibrous to acicular tremolite with minor quartz and calcite. A significant inter-crystalline variation in the hastingsite component is observed, with some crystals falling in the compositional field of hastingsite and even of magnesio-hastingsite.
Place of Conservation of Type Material:
Museo di Mineralogia, Dipartimento di Scienze della Terra e dell’Ambiente, Università di Pavia, catalogue number 2015-01 (type).
Museo Regionale di Scienze Naturali di Torino (type).
Associated Minerals at Type Locality:

Synonyms of Ferro-ferri-hornblendeHide

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Other Language Names for Ferro-ferri-hornblendeHide

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Relationship of Ferro-ferri-hornblende to other SpeciesHide

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Other Members of Hornblende Root Name Group:
Ferro-hornblende◻Ca2(Fe2+4Al)(Si7Al)O22(OH)2Mon. 2/m : B2/m
Magnesio-ferri-fluoro-hornblende◻Ca2(Mg4Fe3+)(AlSi7O22)F2Mon. 2/m : B2/m
Magnesio-ferri-hornblende◻Ca2(Mg4Fe3+)[(Si7Al)O22](OH)2Mon. 2/m : B2/m
'Magnesio-fluoro-hornblende'◻Ca2(Mg4Al)(AlSi7O22)F2
Magnesio-hornblende◻Ca2(Mg4Al)(Si7Al)O22(OH)2Mon. 2/m : B2/m

Related Minerals - Strunz-mindat GroupingHide

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9.DE.ShojiiteNa(NaMg)Mg5Si8O22(OH)2Mon. 2/m : B2/m
9.DE.Clino-suenoite◻{Mn2+2}{Mg5}(Si8O22)(OH)2Mon. 2/m : B2/m
9.DE.Mangani-eckermanniteNaNa2(Mg4Mn3+)Si8O22(OH)2Mon. 2/m : B2/m
9.DE.05'Permanganogrunerite'◻{Mn2+2}{Mn2+5}(Si8O22)(OH)2Mon.
9.DE.05Cummingtonite◻{Mg2}{Mg5}(Si8O22)(OH)2Mon. 2/m : B2/m
9.DE.05Ferri-fluoro-leakeite{Na}{Na2}{Mg2Fe3+2Li}(Si8O22)F2Mon. 2/m : B2/m
9.DE.05Grunerite◻{Fe2+2}{Fe2+5}(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.10Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2Mon. 2/m : B2/m
9.DE.10Fluoro-cannilloiteCaCa2(Mg4Al)(Si5Al3)O22F2Mon. 2/m : B2/m
9.DE.10JoesmithitePb2+Ca2(Mg3Fe3+2)(Si6Be2)O22(OH)2Mon. 2/m : P2/b
9.DE.10Clino-ferro-suenoite◻{Mn2+2}{Fe2+5}(Si8O22)(OH)2Mon. 2/m : B2/m
9.DE.10Fluoro-tremolite◻Ca2Mg5(Si8O22)F2Mon. 2/m : B2/m
9.DE.10'Parvo-manganotremolite'◻{CaMn2+}{Mg5}(Si8O22)(OH)2Mon. 2/m : B2/m
9.DE.10Magnesio-ferri-hornblende◻Ca2(Mg4Fe3+)[(Si7Al)O22](OH)2Mon. 2/m : B2/m
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'◻{Ca2}{Fe5}(Si8O22)F2
9.DE.10'Ferro-fluoro-hornblende'◻Ca2(Fe2+4Al)(AlSi7O22)F2
9.DE.10Magnesio-ferri-fluoro-hornblende◻Ca2(Mg4Fe3+)(AlSi7O22)F2Mon. 2/m : B2/m
9.DE.10'Ferro-ferri-fluoro-hornblende'◻Ca2(Fe2+4Fe3+)(AlSi7O22)F2
9.DE.10'Ferri-fluoro-tschermakite'◻{Ca2}{Mg3Fe3+2}(Al2Si6O22)F2
9.DE.10'Ferro-ferri-fluoro-tschermakite'◻{Ca2}{Fe2+3Fe3+2}(Al2Si6O22)F2
9.DE.10'Ferro-fluoro-tschermakite'◻{Ca2}{Fe2+3Al2}(Al2Si6O22)F2
9.DE.10'Fluoro-tschermakite'◻{Ca2}{Mg3Al2}(Al2Si6O22)F2
9.DE.10'Magnesio-fluoro-hornblende'◻Ca2(Mg4Al)(AlSi7O22)F2
9.DE.10Tremolite◻Ca2Mg5(Si8O22)(OH)2Mon. 2/m : B2/m
9.DE.10'Ferro-ferri-tschermakite'◻{Ca2}{Fe2+3Fe3+2}(Al2Si6O22)(OH)2Mon.
9.DE.10'Cannilloite'CaCa2(Mg4Al)(Si5Al3O22)OH2Mon.
9.DE.10Tschermakite◻(Ca2)(Mg3Al2)(Al2Si6O22)(OH)2Mon. 2/m : B2/m
9.DE.10Magnesio-hornblende◻Ca2(Mg4Al)(Si7Al)O22(OH)2Mon. 2/m : B2/m
9.DE.10'Ferri-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.15Potassic-chloro-pargasiteKCa2(Mg4Al)(Si6Al2)O22Cl2Mon. 2/m : B2/m
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'{Na}{Ca2}{Fe2+3Fe3+2}(Al3Si5O22)(OH)2Mon.
9.DE.15HastingsiteNaCa2(Fe2+4Fe3+)(Si6Al2)O22(OH)2Mon. 2/m : B2/m
9.DE.15Fluoro-edeniteNaCa2Mg5(Si7Al)O22F2Mon. 2/m : P2/m
9.DE.15PargasiteNaCa2(Mg4Al)(Si6Al2)O22(OH)2Mon. 2/m : B2/m
9.DE.15Magnesio-fluoro-hastingsiteNaCa2(Mg4Fe3+)(Si6Al2)O22F2Mon. 2/m : B2/m
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.15'Unnamed (F-dominant analogue of Ferri-kaersutite)'(Na,K)Ca2[Mg3(Fe3+,Fe2+)Ti](Si6Al2O22)(F,O)2Mon. 2/m : B2/m
9.DE.15EdeniteNaCa2Mg5(Si7Al)O22(OH)2Mon. 2/m : B2/m
9.DE.15Potassic-sadanagaite{K}{Ca2}{Mg3Al2}(Al3Si5O22)(OH)2Mon. 2
9.DE.15Ferri-kaersutiteNaCa2(Mg3Fe3+Ti)(Si6Al2O22)O2Mon. 2/m : B2/m
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.15KaersutiteNaCa2(Mg3AlTi4+)(Si6Al2)O22O2Mon. 2/m : B2/m
9.DE.15'Ferro-chloro-pargasite'NaCa2(Fe2+4Al)(Al2Si6O22)Cl2
9.DE.15Potassic-fluoro-pargasiteKCa2(Mg4Al)(Si6Al2)O22F2Mon. 2/m : B2/m
9.DE.15Potassic-ferro-ferri-sadanagaite{K}{Ca2}{Fe2+3Fe3+2}(Al3Si5O22)(OH)2Mon. 2/m : B2/m
9.DE.15Fluoro-pargasiteNaCa2(Mg4Al)(Si6Al2)O22F2Mon. 2/m : B2/m
9.DE.15'Parvo-mangano-edenite'{Na}{CaMn2+}{Mg5}(AlSi7O22)(OH)2Mon. 2/m : B2/m
9.DE.15Ferro-fluoro-edeniteNaCa2Fe2+5(AlSi7O22)F2Mon. 2/m : B2/m
9.DE.15Mangani-pargasiteNaCa2(Mg4Mn3+)(Si6Al2)O22(OH)2Mon. 2/m : B2/m
9.DE.15Sadanagaite{Na}{Ca2}{Mg3Al2}(Si5Al3O22)(OH)2Mon.
9.DE.15Magnesio-hastingsiteNaCa2(Mg4Fe3+)(Si6Al2)O22(OH)2Mon. 2/m : B2/m
9.DE.15'Ferri-sadanagaite'{Na}{Ca2}{Mg3Fe3+2}(Al3Si5O22)(OH)2
9.DE.15'Ferro-sadanagaite'{Na}{Ca2}{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'{K}{Ca2}{Mg3Al2}(Al3Si5O22)Cl2
9.DE.15'Potassic-ferro-chloro-sadanagaite'{K}{Ca2}{Fe2+3Al2}(Al3Si5O22)Cl2
9.DE.15Ferro-edeniteNaCa2Fe2+5(Si7Al)O22(OH)2Mon. 2/m : B2/m
9.DE.15Oxo-magnesio-hastingsiteNaCa2(Mg3(Fe3+2-x,Tix))5(Si6Al2O22)O2Mon. 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.15'Fluoro-hastingsite'NaCa2(Fe2+4Fe3+)(Al2Si6O22)F2
9.DE.15Potassic-magnesio-hastingsiteKCa2(Mg4Fe3+)(Si6Al2)O22(OH)2Mon. 2/m : B2/m
9.DE.15Vanadio-pargasiteNaCa2(Mg3+4V)(Al2Si6)O22(OH)2Mon. 2/m : B2/m
9.DE.15'Ferro-kaersutite'NaCa2{Fe2+3AlTi}(Si6Al2O22)O2Mon.
9.DE.15Chromio-pargasiteNaCa2(Mg4Cr)(Si6Al2)O22(OH)2Mon. 2/m : B2/m
9.DE.15Ferro-pargasiteNaCa2(Fe2+4Al)(Si6Al2)O22(OH)2Mon. 2/m : B2/m
9.DE.20'Ghoseite'◻[Mn2+Na][Mg4Al]Si8O22(OH)2
9.DE.20Potassic-ferro-taramiteK{CaNa}{Fe2+3Al2}{Si6Al2}O22(OH)2Mon. 2/m : B2/m
9.DE.20Ferri-fluoro-katophoriteNa(CaNa)(Mg4Fe3+)(AlSi7O22)F2Mon. 2/m : B2/m
9.DE.20Barroisite◻{CaNa}{Mg3Al2}(AlSi7O22)(OH)2Mon. 2/m : B2/m
9.DE.20Fluoro-richterite{Na}{CaNa}{Mg5}(Si8O22)(F,OH)2Mon. 2/m : B2/m
9.DE.20Potassic-ferro-ferri-taramiteK(CaNa)(Fe2+3Fe3+2)(Al2Si6O22)(OH)2Mon. 2/m : B2/m
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.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.20Ferri-ghoseite◻[Mn2+Na][Mg4Fe3+]Si8O22(OH)2Mon. 2/m : B2/m
9.DE.20Fluoro-taramite{Na}{CaNa}{Mg3Al2}(Al2Si6O22)F2Mon. 2/m : B2/m
9.DE.20'Ferro-ferri-fluoro-katophorite'Na(CaNa)(Fe2+4Fe3+)(AlSi7O22)F2Mon.
9.DE.20RichteriteNa(NaCa)Mg5(Si8O22)(OH)2Mon. 2/m : B2/m
9.DE.20Ferri-winchite◻(NaCa)(Mg4Fe3+)Si8O22(OH)2Mon. 2/m : B2/m
9.DE.20'Fluoro-katophorite'Na(CaNa)(Mg4Al)(AlSi7O22)F2Mon.
9.DE.20Hjalmarite{Na}(NaMn}{Mg5}Si8O22(OH)2Mon. 2/m : B2/m
9.DE.20Ferro-taramiteNa(CaNa)(Fe2+3Al2)(Al2Si6O22)(OH)2Mon. 2/m : B2/m
9.DE.20'Clinoferroholmquistite'◻Li2[Fe2+3Al2]Si8O22(OH,F)2
9.DE.20Ferro-katophorite{Na}{CaNa}{Fe2+4Al}[(AlSi7)O22](OH)2Mon. 2/m : B2/m
9.DE.20TaramiteNa(CaNa)(Mg3Al2)(Al2Si6O22)(OH)2Mon. 2/m : B2/m
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.20Ferri-katophoriteNa(CaNa)(Mg4Fe3+)(AlSi7O22)(OH)2Mon. 2/m : B2/m
9.DE.20'Ferro-ferri-barroisite'◻(CaNa)(Fe2+3Fe3+2)(AlSi7O22)(OH)2
9.DE.20Ferri-taramiteNa(CaNa)(Mg3Fe3+2)(Al2Si6O22)(OH)2Mon. 2/m : B2/m
9.DE.20'Potassic-ferro-ferri-katophorite'{K}{CaNa}{Fe2+4Fe3+}[(AlSi7)O22](OH)2
9.DE.20'Ferro-ferri-winchite'◻[CaNa][Fe2+4(Fe3+,Al)]Si8O22(OH)2
9.DE.20Winchite◻{CaNa}{Mg4Al}(Si8O22)(OH)2Mon. 2/m : B2/m
9.DE.20'Ferro-fluoro-richterite'{Na}{CaNa}{Fe2+5}(Si8O22)F2
9.DE.20'Fluoro-winchite'◻{CaNa}{Mg4Al}(Si8O22)F2
9.DE.20'Ferro-fluoro-winchite'◻{CaNa}{Fe2+4Al}(Si8O22)F2
9.DE.20'Ferri-barroisite'◻(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'◻{CaNa}{Mg3Fe3+2}(AlSi7O22)F2
9.DE.20'Ferro-fluoro-barroisite'◻{CaNa}{Fe2+3Al2}(AlSi7O22)F2
9.DE.20'Ferro-ferri-fluoro-barroisite'◻{CaNa}{Fe2+3Fe3+2}(AlSi7O22)F2
9.DE.20'Fluoro-barroisite'◻{CaNa}{Mg3Al2}(AlSi7O22)F2
9.DE.20Ferro-ferri-katophoriteNa(NaCa)(Fe2+4Fe3+)(Si7Al)O22(OH)2Mon. 2/m : B2/m
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)2Mon.
9.DE.20'Ferro-barroisite'◻{CaNa}{Fe2+3Al2}(AlSi7O22)(OH)2Mon. 2/m : B2/m
9.DE.20Scandio-winchite◻(NaCa)(Mg4Sc)(Si8O22)(OH)2Mon. 2/m : B2/m
9.DE.20Ferro-richterite{Na}{CaNa}{Fe2+5}(Si8O22)(OH)2Mon. 2/m : B2/m
9.DE.20Katophorite{Na}{CaNa}{Mg4Al}[(AlSi7)O22](OH)2Mon. 2/m : B2/m
9.DE.20'Ferro-winchite' ◻{CaNa}{Fe2+4Al}(Si8O22)(OH)2Mon.
9.DE.25'Clino-sodic-fluoro-holmquistite'{Na}{Li2}{Mg4Al}(Si8O22)F2
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.25'Oxo-pargasite'NaCa2(Mg3(Al2-xTix))5(Si6Al2O22)O2
9.DE.25'Ferri-nybøite'NaNa2(Mg3Fe3+2](AlSi7O22)(OH)2Mon.
9.DE.25'Ferro-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.25Ferri-leakeite[Na][Na2][Mg2Fe3+2Li]Si8O22(OH)2Mon. 2/m : B2/m
9.DE.25'Fluoro-pedrizite'NaLi2(Mg2Al2Li)(Si8O22)F2Mon. 2/m : B2/m
9.DE.25EckermanniteNaNa2(Mg4Al}Si8O22(OH)2Mon. 2/m : B2/m
9.DE.25Arfvedsonite[Na][Na2][Fe2+4Fe3+]Si8O22(OH)2Mon. 2/m : B2/m
9.DE.25'Mangano-ferri-fluoro-leakeite'NaNa2(Mn2+2Fe3+2Li)[Si8O22]F2Mon.
9.DE.25Ferri-obertiiteNaNa2(Mg3Fe3+Ti)Si8O22O2 Mon. 2/m : B2/m
9.DE.25Riebeckite◻[Na2][Fe2+3Fe3+2]Si8O22(OH)2Mon. 2/m : B2/m
9.DE.25'Unnamed (Possible K-analogue of Ferri-obertiite)'KNa2((Mg,Fe,Na)3Fe3+(Ti,Fe))Si8O22(O,F)2
9.DE.25Magnesio-fluoro-arfvedsonite[Na][Na2][Mg4Fe3+][Si8O22](F,OH)2Mon. 2/m : B2/m
9.DE.25'Ferro-fluoro-glaucophane'◻[Na2][Fe2+3Al2]Si8O22F2
9.DE.25Oxo-mangani-leakeiteNaNa2(Mn3+4Li)Si8O22O2Mon. 2/m : B2/m
9.DE.25Fluoro-leakeiteNaNa2(Mg2Al2Li)(Si8O22)F2Mon. 2/m : B2/m
9.DE.25NybøiteNaNa2(Mg3Al2)(AlSi7O22)(OH)2Mon. 2/m : B2/m
9.DE.25'Sodic-ferri-clinoferroholmquistite'Na0.5{Li2}{Fe2+3Fe3+2}(Si8O22)(OH)2Mon.
9.DE.25Potassic-arfvedsonite[(K,Na)][Na2][Fe2+4Fe3+]Si8O22(OH)2Mon. 2/m : B2/m
9.DE.25'Potassic-mangano-mangani-ungarettiite'KNa2(Mn2+2Mn3+3)Si8O22O2
9.DE.25Potassic-jeanlouisiteK(NaCa)(Mg4Ti)Si8O22O2Mon. 2/m : B2/m
9.DE.25'Ferri-pedrizite'[Na][Li2][Mg2Fe3+2Li]Si8O22(OH)2Mon.
9.DE.25Glaucophane◻[Na2][Mg3Al2]Si8O22(OH)2Mon. 2/m : B2/m
9.DE.25Ferro-fluoro-pedriziteNa(Li2)(Fe2+2Al2Li)[Si8O22]F2Mon. 2/m : B2/m
9.DE.25Potassic-ferri-leakeite[K][Na2][Mg2Fe3+2Li]Si8O22(OH)2Mon. 2/m : B2/m
9.DE.25Potassic-magnesio-fluoro-arfvedsonite[(K,Na)][Na2][Mg4Fe3+][Si8O22][(F,OH)2]Mon. 2/m : B2/m
9.DE.25Mangani-obertiiteNaNa2(Mg3Mn3+Ti4+)Si8O22O2Mon. 2/m : B2/m
9.DE.25Scandio-fluoro-eckermanniteNaNa2(Mg4Sc)(Si8O22)F2Mon. 2/m : B2/m
9.DE.25'Ferro-eckermannite'NaNa2(Fe2+4Al)Si8O22(OH)2Mon.
9.DE.25Ferro-ferri-pedrizite[Na][Li2][Fe2+2Fe3+2Li]Si8O22(OH)2Mon. 2/m : B2/m
9.DE.25'Pedrizite'NaLi2(LiMg2Al2)(Si8O22)(OH)2Mon. 2/m : B2/m
9.DE.25Ferro-pedriziteNaLi2(Fe2+2Al2Li)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.25'Clino-fluoro-holmquistite'◻{Li2}{Mg3Al2}(Si8O22)F2
9.DE.25Ferro-ferri-obertiiteNaNa2(Fe2+3Fe3+Ti)Si8O22O2Mon. 2/m : B2/m
9.DE.25Magnesio-riebeckite◻{Na2}{Mg3Fe3+2}(Si8O22)(OH)2Mon.
9.DE.25Potassic-magnesio-arfvedsonite[K][Na2][Mg4Fe3+]Si8O22(OH)2Mon. 2/m : B2/m
9.DE.25Fluoro-nybøiteNaNa2(Mg3Al2)(AlSi7O22)(F,OH)2Mon. 2/m : B2/m
9.DE.25Mangano-ferri-eckermannite{Na}{Na2}{Mn2+4Fe3+}Si8O22(OH)2Mon. 2/m : B2/m
9.DE.25'Fluoro-glaucophane'◻[Na2][Mg3Al2]Si8O22F2
9.DE.25Fluoro-riebeckite◻{Na2}{Fe2+3Fe3+2}(Si8O22)F2Mon. 2/m : B2/m
9.DE.25'Magnesio-fluoro-riebeckite'◻{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'[Na][Na2][Fe2+4Fe3+]Si8O22F2
9.DE.25Magnesio-arfvedsonite{Na}{Na2}{Mg4Fe3+}(Si8O22)(OH)2Mon. 2/m : B2/m
9.DE.25'Ferri-fluoro-nybøite'NaNa2(Mg3Fe3+2)(AlSi7O22)F2
9.DE.25'Ferro-ferri-fluoro-nybøite'NaNa2(Fe2+3Fe3+2)(AlSi7O22)F2
9.DE.25Ferro-glaucophane◻[Na2][Fe2+3Al2]Si8O22(OH)2Mon. 2/m : B2/m
9.DE.25'Ferro-fluoro-nybøite'NaNa2(Fe2+3Al2)(AlSi7O22)F2
9.DE.25Mangani-dellaventuraiteNaNa2(MgMn3+2Ti4+Li)Si8O22O2Mon. 2/m : B2/m
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-nybøite'NaNa2(Fe2+3Al2)(AlSi7)O22(OH)2Mon.
9.DE.25'Clino-ferro-ferri-fluoro-holmquistite'◻{Li2}{Fe2+3Fe3+2}(Si8O22)F2
9.DE.25Mangano-mangani-ungarettiiteNaNa2(Mn2+2Mn3+3)(Si8O22)O2Mon. 2/m : B2/m
9.DE.25'Clino-ferri-fluoro-holmquistite'◻{Li2}{Mg3Fe3+2}(Si8O22)F2
9.DE.25'Clino-ferro-fluoro-holmquistite'◻{Li2}{Fe2+3Al2}(Si8O22)F2

Fluorescence of Ferro-ferri-hornblendeHide

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Not fluorescent.

Other InformationHide

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Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Industrial Uses:
None

Internet Links for Ferro-ferri-hornblendeHide

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mindat.org URL:
https://www.mindat.org/min-43379.html
Please feel free to link to this page.

References for Ferro-ferri-hornblendeHide

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Reference List:

Localities for Ferro-ferri-hornblendeHide

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Showing 6 localities.

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the 👁 Image
symbol to view information about a locality. The 👁 Image
symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

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👁 Image
- This locality has map coordinates listed. 👁 Image
- This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. 👁 Image
- Good crystals or important locality for species. 👁 Image
- 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.
Italy (TL)
  • Piedmont
    • Metropolitan City of Turin
      • Traversella
Hålenius et al. (2015) +1 other reference
South America Plate
  • Borborema Province
    • Central Borborema Subprovince
      • Alto Moxotó Domain
Lima et al. (2024)
Lima et al. (2024)
Lima et al. (2024)
Lima et al. (2024)
USA
  • New Hampshire
    • Carroll County
      • Moultonborough
DORAIS et al. (1992) +1 other reference
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