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Taramite

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Formula:
{Na}{CaNa}{Mg3Al2}(Al2Si6O22)(OH)2
The taramite group minerals are sodium-calcium amphiboles defined with A(Na+K+2Ca)> 0.5 apfu and 1.5 apfu < C(Al+Fe3++2Ti).

Taramite is defined with

A position: Na dominant
C2+ position: Mg dominant
C3+ position: Al dominant
W position: (OH) dominant
System:
Monoclinic
Colour:
Greenish gray
Name:
Named for the group type locality, Walitarama, Mariupol, Ukraine.

Taramite was originally defined with Fe2+>Mg and Al=Fe3+= 1 apfu in the idealized formula. This definition remained constant through the 1978 and 1997 amphibole nomenclature reports. From 2012, taramite has been defined as the Mg and Al dominant member of the taramite group.
Taramite is defined as a taramite-group member with Na>K in the A position, Mg>Fe2+ and Al>Fe3+ in the C position. Taramite has been redefined in the 2012 Amphibole nomenclature in that:


1) The formula is changed from Na(NaCa)(Mg3AlFe3+)(Al2Si6O22)(OH)2 to Na(NaCa)(Mg3Al2)(Al2Si6O22)(OH)2. Consequently all pre-2012 literature references to taramite should be checked to verify that Al>Fe3+ in the C position. If Fe3+>Al in the C position the material will be ferri-taramite.

2) The taramite group is in the 2012 nomenclature defined with C(Al+Fe3++2Ti)>1,5 apfu, whereas the pre-2012 definition was used the T position, i.e 5,5 < Si < 6,5 apfu. This redefinition does not change the formula, but some amphiboles qualifying as taramite pre-2012 will now be katophorite or ferri-katophorite. Since the content of the C3+ position was not part of the pre-2012 definition, it was often omitted in the presentation of data.

Classification of Taramite

Redefined Approved 2012
9.DE.20

9 : SILICATES (Germanates)
D : Inosilicates
E : Inosilicates with 2-periodic double chains, Si4O11; Clinoamphiboles
66.1.3b.15

66 : INOSILICATES Double-Width,Unbranched Chains,(W=2)
1 : Amphiboles - Mg-Fe-Mn-Li subgroup
16.11.10

16 : Silicates Containing Aluminum and other Metals
11 : Aluminosilicates of Ca and Mg with or without alkalis
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Type Occurrence of Taramite

Physical Properties of Taramite

Colour:
Greenish gray
Cleavage:
Distinct/Good
{110} good
Density:
3.21 g/cm3 (Calculated)

Crystallography of Taramite

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/m
Cell Parameters:
a = 9.7899Å, b = 17.8991Å, c = 5.3192Å
β = 104.9°
Ratio:
a:b:c = 0.547 : 1 : 0.297
Unit Cell Volume:
V 900.75 ų (Calculated from Unit Cell)
Morphology:
Prismatic
X-Ray Powder Diffraction Data:
d-spacingIntensity
8.381 (92)
3.374 (56)
3.104 (69)
2.934 (41)
2.697 (100)
2.580 (53)
2.552 (60)
2.325 (41)

Optical Data of Taramite

Type:
Biaxial (-)
RI values:
nα = 1.654 nβ = 1.666 nγ = 1.671
2V:
Measured: 74 (1)° , Calculated: 65°
Max Birefringence:
δ = 0.017
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
Moderate

Chemical Properties of Taramite

Formula:
{Na}{CaNa}{Mg3Al2}(Al2Si6O22)(OH)2

The taramite group minerals are sodium-calcium amphiboles defined with A(Na+K+2Ca)> 0.5 apfu and 1.5 apfu < C(Al+Fe3++2Ti).

Taramite is defined with

A position: Na dominant
C2+ position: Mg dominant
C3+ position: Al dominant
W position: (OH) dominant
Essential elements:
All elements listed in formula:

Relationship of Taramite to other Species

Other Members of Group:
Ferri-fluoro-taramiteNa(CaNa)(Mg3Fe23+)(Al2Si6O22)F2
Ferri-taramiteNa(CaNa)(Mg3Fe23+)(Al2Si6O22)(OH)2
Ferro-ferri-fluoro-taramiteNa(CaNa)(Fe32+Fe23+)(Al2Si6O22)F2
Ferro-ferri-taramiteNa(CaNa)(Fe32+Fe23+)(Al2Si6O22)(OH)2
Ferro-fluoro-taramiteNa(CaNa)(Fe32+Al2)(Al2Si6O22)F2
Ferro-taramiteNa(CaNa)(Fe32+Al2)(Al2Si6O22)(OH)2
Fluoro-taramite{Na}{CaNa}{Mg3Al2}(Al2Si6O22)F2
Potassic-ferri-taramiteK(CaNa)(Mg3Fe23+)(Al2Si6O22)(OH)
Potassic-ferro-ferri-taramiteK(CaNa)(Fe32+Fe23+)(Al2Si6O22)(OH)2
Potassic-ferro-taramiteK{CaNa}{Fe32+Al2}{Si6Al2}O22(OH)2
9.DE.05Anthophyllite☐{Mg2}{Mg5}(Si8O22)(OH)2
9.DE.05Cummingtonite☐{Mg2}{Mg5}(Si8O22)(OH)2
9.DE.05Clino-holmquistite Root Name☐{Li2}{Z32+Z23+}(Si8O22)(OH,F,Cl)2
9.DE.05Grunerite☐{Fe22+}{Fe52+}(Si8O22)(OH)2
9.DE.05Manganocummingtonite☐{Mn22+}{Mg5}(Si8O22)(OH)2
9.DE.05Manganogrunerite☐{Mn22+}{Fe52+}(Si8O22)(OH)2
9.DE.05Permanganogrunerite☐{Mn22+}{Mn52+}(Si8O22)(OH)2
9.DE.05Ferro-fluoro-pedrizite{Na}{Li2}{Fe2Al2Li}(Al2Si6O22)F2
9.DE.05Ferri-fluoro-leakeite{Na}{Na2}{Mg2Fe23+Li}(Si8O22)F2
9.DE.10Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
9.DE.10Ferri-tschermakite☐{Ca2}{Mg3Fe23+}(Al2Si6O22)(OH)2
9.DE.10Ferro-actinolite☐{Ca2}{Fe52+}(Si8O22)(OH)2
9.DE.10Ferro-hornblende☐{Ca2}{Fe42+Al}(AlSi7O22)(OH)2
9.DE.10Ferro-tschermakite☐{Ca2}{Fe32+Al2}(Al2Si6O22)(OH)2
9.DE.10Joesmithite{Pb}{Ca2}{Mg3Fe23+}(Be2Si6O22)(OH)2
9.DE.10Magnesio-hornblende☐{Ca2}{Mg4Al}(AlSi7O22)(OH)2
9.DE.10Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
9.DE.10Tschermakite☐(Ca2)(Mg3Al2)(Al2Si6O22)(OH)2
9.DE.10CannilloiteCa(Ca2)(Mg4Al)(Al3Si5O22)(OH)2
9.DE.10Fluoro-cannilloite{Ca}{Ca2}{Mg4Al}(Al3Si5O22)(F,OH)2
9.DE.10Parvo-manganotremolite☐{CaMn2+}{Mg5}(Si8O22)(OH)2
9.DE.10Fluoro-tremolite☐{Ca2}{Mg5}(Si8O22)F2
9.DE.10Potassic-fluoro-pargasite{K}{Ca2}{Mg4Al}(Al2Si6O22)F2
9.DE.15Edenite{Na}{Ca2}{Mg5}(AlSi7O22)(OH)2
9.DE.15Ferro-edenite{Na}{Ca2}{Fe52+}(AlSi7O22)(OH)2
9.DE.15Ferro-kaersutite{Na}{Ca2}{Fe32+AlTi}(Al2Si6O22)O2
9.DE.15Ferro-pargasite{Na}{Ca2}{Fe42+Al}(Al2Si6O22)(OH)2
9.DE.15Hastingsite{Na}{Ca2}{Fe42+Fe3+}(Al2Si6O22)(OH)2
9.DE.15Kaersutite{Na}{Ca2}{Mg3AlTi}(Al2Si6O22)O2
9.DE.15Magnesio-hastingsite{Na}{Ca2}{Mg4Fe3+}(Al2Si6O22)(OH)2
9.DE.15Pargasite{Na}{Ca2}{Mg4Al}(Al2Si6O22)(OH)2
9.DE.15Sadanagaite{Na}{Ca2}{Mg3Al2}(Al3Si5O22)(OH)2
9.DE.15Fluoro-edenite{Na}{Ca2}{Mg5}(AlSi7O22)(F,OH)2
9.DE.15Potassic-ferro-ferri-sadanagaite{K}{Ca2}{Fe32+Fe23+}(Al3Si5O22)(OH)2
9.DE.15Potassic-sadanagaite{K}{Ca2}{Mg3Al2}(Al3Si5O22)(OH)2
9.DE.15Potassic-pargasite{K}{Ca2}{Mg4Al}(Al2Si6O22)(OH)2
9.DE.15Potassic-ferro-sadanagaite{K}{Ca2}{Fe32+Al2}(Al3Si5O22)(OH)2
9.DE.15Fluoro-magnesio-hastingsite{Na}{Ca2}{Mg4Fe3+}(Al2Si6O22)F2
9.DE.15Potassic-fluoro-hastingsite{K}{Ca2}{Fe42+Fe3+}(Al2Si6O22)(F,OH)2
9.DE.15Potassic-chloro-hastingsite{K}{Ca2}{Fe42+Fe3+}(Al2Si6O22)(Cl,OH)2
9.DE.15Fluoro-pargasite{Na}{Ca2}{Mg4Al}(Al2Si6O22)(F,OH)2
9.DE.15Parvo-mangano-edenite{Na}{CaMn2+}{Mg5}(AlSi7O22)(OH)2
9.DE.15Potassic-chloro-pargasite{K}{Ca2}{Mg4Al}(Al2Si6O22)(Cl,OH)2
9.DE.15Potassic-ferro-chloro-edenite{K}{Ca2}{Fe52+}(AlSi7O22)(Cl,OH)2
9.DE.15Potassic-magnesio-hastingsite{K}{Ca2}{Mg4Fe3+}(Al2Si6O22)(OH)2
9.DE.15Potassic-ferro-pargasite{K}{Ca2}{Fe42+Al}(Al2Si6O22)(OH)2
9.DE.15Chromio-pargasite{Na}{Ca2}{Mg4Cr3+}(Al2Si6O22)(OH)2
9.DE.20Ferro-taramiteNa(CaNa)(Fe32+Al2)(Al2Si6O22)(OH)2
9.DE.20Barroisite☐{CaNa}{Mg3Al2}(AlSi7O22)(OH)2
9.DE.20Ferro-ferri-barroisite☐(CaNa)(Fe32+Fe23+)(AlSi7O22)(OH)2
9.DE.20Ferro-ferri-winchite☐[CaNa][Fe42+(Fe3+,Al)]Si8O22(OH)2
9.DE.20Ferri-barroisite☐(CaNa)(Mg3Fe23+)(AlSi7O22)(OH)2
9.DE.20Ferro-ferri-taramiteNa(CaNa)(Fe32+Fe23+)(Al2Si6O22)(OH)2
9.DE.20Ferro-ferri-katophoriteNaCaNaFe42+(Fe3+)[(AlSi7)O22](OH)2
9.DE.20Ferro-barroisite☐{CaNa}{Fe32+Al2}(AlSi7O22)(OH)2
9.DE.20Ferro-richterite{Na}{CaNa}{Fe52+}(Si8O22)(OH)2
9.DE.20Ferro-winchite ☐{CaNa}{Fe42+Al}(Si8O22)(OH)2
9.DE.20Ferro-katophorite{Na}{CaNa}{Fe42+Al}[(AlSi7)O22](OH)2
9.DE.20Ferri-taramiteNa(CaNa)(Mg3Fe23+)(Al2Si6O22)(OH)2
9.DE.20Magnesiotaramite{Na}{CaNa}{Mg3AlFe3+}(Al2Si6O22)(OH)2
9.DE.20Richterite{Na}{CaNa}{Mg5}(Si8O22)(OH)2
9.DE.20Winchite☐{CaNa}{Mg4Al}(Si8O22)(OH)2
9.DE.20Fluoro-richterite{Na}{CaNa}{Mg5}(Si8O22)(F,OH)2
9.DE.20Katophorite{Na}{CaNa}{Mg4Al}[(AlSi7)O22](OH)2
9.DE.20Potassic-fluoro-richterite{K}{CaNa}{Mg5}(Si8O22)(F,OH)2
9.DE.20Potassic-richteriteK[CaNa][Mg5]Si8O22(OH)2
9.DE.20Ferri-ghoseite☐[Mn2+Na][Mg4Fe3+]Si8O22(OH)2
9.DE.20Ferri-winchite☐[CaNa][Mg4(Fe3+,Al)]Si8O22(OH)2
9.DE.20Fluoro-taramite{Na}{CaNa}{Mg3Al2}(Al2Si6O22)F2
9.DE.25Arfvedsonite[Na][Na2][Fe42+Fe3+]Si8O22(OH)2
9.DE.25EckermanniteNaNa2(Mg4Al}Si8O22(OH)2
9.DE.25Ferro-eckermanniteNaNa2(Fe2+,4Al)Si8O22(OH)2
9.DE.25Ferro-glaucophane◻[Na2][Fe32+Al2]Si8O22(OH)2
9.DE.25Glaucophane◻[Na2][Mg3Al2]Si8O22(OH)2
9.DE.25Potassic-mangani-leakeite[(Na,K)][Na2][Mg2Mn23+Li]Si8O22(OH)2
9.DE.25Mangano-ferri-eckermannite[Na][Na2][Mn42+(Fe3+)]Si8O22(OH)2
9.DE.25Ferri-leakeite[Na][Na2][Mg2Fe23+Li]Si8O22(OH)2
9.DE.25Magnesio-riebeckite◻{Na2}{Mg3Fe23+}(Si8O22)(OH)2
9.DE.25Magnesio-arfvedsonite{Na}{Na2}{Mg4Fe3+}(Si8O22)(OH)2
9.DE.25NybøiteNaNa2(Mg3Al2)(AlSi7O22)(OH)2
9.DE.25Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
9.DE.25Mangano-mangani-ungarettiiteNaNa2(Mn22+Mn33+)(Si8O22)O2
9.DE.25Ferro-ferri-nybøiteNaNa2[(Fe32+,Mg)Fe23+](AlSi7O22)(OH)2
9.DE.25Clino-ferro-ferri-holmquistite◻{Li2}{Fe32+Fe23+}(Si8O22)(OH)2
9.DE.25Ferri-nybøiteNaNa2(Mg3Fe23+](AlSi7O22)(OH)2
9.DE.25Ferro-ferri-leakeite[Na][Na2][Fe22+Fe23+Li]Si8O22(OH)2
9.DE.25Ferro-ferri-fluoro-leakeiteNa(Na2)(Fe22+Fe23+Li)(Si8O22)(F)2
9.DE.25Sodic-ferri-clinoferroholmquistiteNa0.5{Li2}{Fe32+Fe23+}(Si8O22)(OH)2
9.DE.25Magnesio-fluoro-arfvedsonite[Na][Na2][Mg4Fe3+][Si8O22](F,OH)2
9.DE.25Ferri-pedrizite[Na][Li2][Mg2Fe23+Li]Si8O22(OH)2
9.DE.25Potassic-ferri-leakeite[K][Na2][Mg2Fe23+Li]Si8O22(OH)2
9.DE.25Fluoro-nybøiteNaNa2(Mg3Al2)(AlSi7O22)(F,OH)2
9.DE.25Mangani-dellaventuraite{Na}{Na2}{MgMn23+LiTi4+}Si8O22O2
9.DE.25Fluoro-pedriziteNaLi2(Mg2Al2Li)(Si8O22)F2
9.DE.25Potassic-arfvedsonite[(K,Na)][Na2][Fe42+Fe3+]Si8O22(OH)2
9.DE.25Mangani-obertiiteNa(Na2)(Mg3Mn3+Ti)(Si8O22)O2
9.DE.25Potassic-magnesio-fluoro-arfvedsonite[(K,Na)][Na2][Mg4Fe3+][Si8O22][(F,OH)2]
9.DE.25Ferro-ferri-pedrizite[Na][Li2][Fe22+Fe23+Li]Si8O22(OH)2
9.DE.25Potassic-magnesio-arfvedsonite[K][Na2][Mg4Fe3+]Si8O22(OH)2
9.DE.25PedriziteNaLi2(LiMg2Al2)(Si8O22)(OH)2
9.DE.25Ferro-pedriziteNaLi2(Fe22+Al2Li)Si8O22(OH)2
9.DE.25Fluoro-leakeiteNaNa2(Mg2Al2Li)(Si8O22)F2
9.DE.25Ferro-ferri-obertiiteNaNa2(Fe32+Fe3+Ti)Si8O22O2
16.11.1MadisoniteCa2Mg2Al2Si3O13 or near
16.11.3Alumino-magnesio-hornblende☐{Ca2}{Mg4Al}(AlSi7O22)(OH)2
16.11.4Tschermakite☐(Ca2)(Mg3Al2)(Al2Si6O22)(OH)2
16.11.5ClintoniteCa(Mg,Al)3(Al3SiO10)(OH)2
16.11.6JuaniteCa10Mg4Al2Si11O39 · 4H2O or near
16.11.7Pumpellyite-(Mg)Ca2MgAl2(Si2O7)(SiO4)(OH)2 · H2O
16.11.8TacharaniteCa12Al2Si18O51 · 18H2O
16.11.9Aluminobarroisite☐{CaNa}{Mg3Al2}(AlSi7O22)(OH)2
16.11.12Edenite{Na}{Ca2}{Mg5}(AlSi7O22)(OH)2
16.11.13Pargasite{Na}{Ca2}{Mg4Al}(Al2Si6O22)(OH)2
16.11.14Katophorite{Na}{CaNa}{Mg4Al}[(AlSi7)O22](OH)2
16.11.15Beidellite(Na,Ca0.5)0.3Al2((Si,Al)4O10)(OH)2 · nH2O
16.11.15Magnesiosadanagaite{Na}{Ca2}{Mg3Al2}(Al3Si5O22)(OH)2
16.11.16Sadanagaite{Na}{Ca2}{Mg3Al2}(Al3Si5O22)(OH)2

Other Names for Taramite

Name in Other Languages:
Simplified Chinese:绿铁闪石

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.

References for Taramite

Reference List:
Hawthorne, Frank C., and Roberta Oberti (2006), On the classification of amphiboles. Canadian Mineralogist. 44(1), 1-21.

Oberti, R., Boiocchi, M., Smith, D.C. & Medenbach, O. (2007): Alumotaramite, alumino-magnesiotaramite, and fluoro-alumino-magnesiotaramite: Mineral data and crystal chemistry. American Mineralogist. 92, 1428-1435

Hawthorne, F. C., Oberti, R., Harlow, G. E., Maresch, W. V., Martin, R.F. Schumacer, J.C. & Welch, M.D. (2012): Nomenclature of the amphibole supergroup. American Mineralogist. 97, 2031–2048

Internet Links for Taramite

Localities for Taramite

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.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
Brazil
 
  • Bahia
    • Itaju do Colônia
Maria de Lourdes da Silva Rosa, Herbet Conceição, Moacir José Buenano Macambira, Marco Antonio Galarza ,Mônica Pringsheim Cunha, Rita Cunha Leal Menezes,Moacyr Moura Marinho, Basílio Elesbão da Cruz Filho,Débora Correia Rios (2007):Neoproterozoic anorogenic magmatism in the Southern Bahia Alkaline Province of NE Brazil: U–Pb and Pb–Pb ages of the blue sodalite syenites, Lithos vol 97 pp 88-97
Canada
 
  • Ontario
    • Kenora District
      • Ring of Fire
        • BMA527861 Area
Laarman,J.E. 2014. A DETAILED METALLOGENIC STUDY OF THE MCFAULDS LAKE CHROMITE DEPOSITS, NORTHERN ONTARIO , PhD Thesis, University of Western Ontario, London, Ontario, Canada
China
 
  • Jiangsu Province
    • Lianyungang Prefecture
      • Donghai Co.
Oberti, R., Boiocchi, M., and Smith, D.C. (2003): Mineralogical Magazine 67(4), 769-782.
Greece
 
  • Thraki Department (Thrace; Thracia)
    • Komotini Prefecture (Rodopi; Rhodope)
Mposkos, E., & Perraki, M. (2012). Preiswerkite, Ca-(Mg, Fe)-paragonite and Ca-“ephesite” in metadiorite from the HP Kechros Metamorphic Complex in Eastern Rhodope, NE Greece. Geochemistry, Mineralogy and Petrology Sofia 49, 33-48.
Greenland
 
  • Kujalleq
    • Narsaq
      • Igaliku (Igaliko)
Schönenberger, J., & Markl, G. (2008). The magmatic and fluid evolution of the Motzfeldt intrusion in South Greenland: insights into the formation of Agpaitic and Miaskitic rocks. Journal of Petrology, 49(9), 1549-1577.
Norway
 
  • Sogn og Fjordane
    • Nordfjord
Ungaretti, L., Smith, D.C. (1981): Crystal-chemistry by x-ray structure refinement and electron microprobe analysis of a series of sodic-calcic to alkali-amphiboles from the Nybö eclogite pod, Norway. Bulletin Société Française de Minéralogie et de Cristallographie. 104: 400–412
    • Selje
      • Liset
Oberti, R., Boiocchi, M., Smith, D.C. & Medenbach, O. (2007): Alumotaramite, alumino-magnesiotaramite, and fluoro-alumino-magnesiotaramite: Mineral data and crystal chemistry. American Mineeralogist. 92: 1428-1435
  • Vestfold
    • Larvik
      • Hedrum
        • Lågendalen
Piilonen, P.C., McDonald, A.M., Poirier, G., Rowe, R. & Larsen, A.O. (2012): The mineralogy and crystal chemistry of alkaline pegmatites in the Larvik Plutonic Complex, Oslo rift valley, Norway. Part 1. Magmatic and secondary zircon: implications for petrogenesis from trace-element geochemistry. Mineralogical Magazine. 76, 649-672
Mineral and/or Locality  
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