Potassic-ferro-taramite

This page is currently not sponsored. Click here to sponsor this page.

Edit Add Synonym Edit CIF structures Clear Cache

Formula:

K{CaNa}{Fe²⁺₃Al₂}{Si₆Al₂}O₂₂(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).

Potassic-ferro-taramite is defined with

A position: K dominant
C²⁺ position: Fe dominant
C³⁺ position: Al dominant
W position: (OH) dominant

Colour:

Dark bluish-green

Lustre:

Vitreous

Hardness:

5 - 6

Crystal System:

Monoclinic

Member of:

Taramite Root Name Group > Sodium-Calcium Amphibole Subgroup > w(OH, F, Cl)-dominant Amphibole Group > Amphibole Supergroup

Name:

Named for the group type locality, Walitarama, Mariupol, Ukraine.

This mineral was originally named potassic-aluminotaramite. Due to the redefinition of the taramite group in the 2012 amphibole nomenclature, the valid name for this material is potassic-ferro-taramite.

Type Locality:

ⓘ Sierra de los Filabres, Almería, Andalusia, Spain

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 potassic-ferro-taramite pre-2012 may now be potassic-ferro-katophorite.

Hide all sections | Show all sections

Classification of Potassic-ferro-taramiteHide

IMA status:

Approved

Approval Year:

2007

Physical Properties of Potassic-ferro-taramiteHide

Lustre:

Vitreous

Colour:

Dark bluish-green

Streak:

White

Hardness:

5 - 6 on Mohs scale

Cleavage:

Perfect
{110} Perfect

Chemical Properties of Potassic-ferro-taramiteHide

Formula:

K{CaNa}{Fe²⁺₃Al₂}{Si₆Al₂}O₂₂(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).

Potassic-ferro-taramite is defined with

A position: K dominant
C²⁺ position: Fe dominant
C³⁺ position: Al dominant
W position: (OH) dominant

IMA Formula:

K(NaCa)(Fe²⁺₃Al₂)(Si₆Al₂)O₂₂(OH)₂

Elements listed:

Al, Ca, Fe, H, K, Na, O, Si - search for minerals with similar chemistry

Crystallography of Potassic-ferro-taramiteHide

Crystal System:

Monoclinic

Class (H-M):

2/m - Prismatic

Space Group:

B2/m

Cell Parameters:

a = 9.8505 Å, b = 18.0075 Å, c = 5.3518 Å
β = 104.775°

Ratio:

a:b:c = 0.547 : 1 : 0.297

Unit Cell V:

917.93 Å³ (Calculated from Unit Cell)

Morphology:

Prismatic

Crystal StructureHide

Load
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4

View
CIF File Best | x | y | z | a | b | c

Rotation
Stop | Start

Labels
Console Off | On | Grey | Yellow

Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure

ID	Species	Reference	Link	Year	Locality	Pressure (GPa)	Temp (K)
0007271	Potassic-ferro-taramite	Oberti R, Boiocchi M, Smith D C, Medenbach O, Helmers H (2008) Potassic-aluminotaramite from Sierra de los Filabres, Spain European Journal of Mineralogy 20 1005-1010		2008	Sierra de los Filabres, Spain	0	293

CIF Raw Data - click here to close

data_global
_chemical_name_mineral 'Potassic-ferro-taramite'
loop_
_publ_author_name
'Oberti R'
'Boiocchi M'
'Smith D C'
'Medenbach O'
'Helmers H'
_journal_name_full 'European Journal of Mineralogy'
_journal_volume 20 
_journal_year 2008
_journal_page_first 1005
_journal_page_last 1010
_publ_section_title
;
 Potassic-aluminotaramite from Sierra de los Filabres, Spain
;
_database_code_amcsd 0007271
_chemical_compound_source 'Sierra de los Filabres, Spain'
_chemical_formula_sum 'Na1.33 K.96 Ca1.14 Fe3.27 Mg.33 Al3.26 Ti.06 Mn.1 Si6 O24 H2'
_cell_length_a 9.8505
_cell_length_b 18.0075
_cell_length_c 5.3518
_cell_angle_alpha 90
_cell_angle_beta 104.775
_cell_angle_gamma 90
_cell_volume 917.928
_exptl_crystal_density_diffrn      3.456
_symmetry_space_group_name_H-M 'C 1 2/m 1'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '1/2+x,1/2+y,z'
  'x,-y,z'
  '1/2+x,1/2-y,z'
  '-x,y,-z'
  '1/2-x,1/2+y,-z'
  '-x,-y,-z'
  '1/2-x,1/2-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
_atom_site_U_iso_or_equiv
NaA   0.00000   0.50000   0.00000   0.19000   0.01811
KA   0.00000   0.50000   0.00000   0.36000   0.01811
NaAm   0.03500   0.50000   0.07650   0.13000   0.02153
KAm   0.03500   0.50000   0.07650   0.25000   0.02153
NaA2   0.00000   0.46250   0.00000   0.02000   0.02660
KA2   0.00000   0.46250   0.00000   0.05000   0.02660
CaM4   0.00000   0.28190   0.50000   0.57000   0.00937
NaM4   0.00000   0.28190   0.50000   0.42000   0.00937
Fe2+M4   0.00000   0.28190   0.50000   0.01000   0.00937
MgM1   0.00000   0.09190   0.50000   0.15000   0.00722
FeM1   0.00000   0.09190   0.50000   0.85000   0.00722
AlM2   0.00000   0.18050   0.00000   0.63000   0.00671
Fe2+M2   0.00000   0.18050   0.00000   0.11000   0.00671
Fe3+M2   0.00000   0.18050   0.00000   0.23000   0.00671
TiM2   0.00000   0.18050   0.00000   0.03000   0.00671
MgM3   0.00000   0.00000   0.00000   0.03000   0.00697
Fe2+M3   0.00000   0.00000   0.00000   0.87000   0.00697
MnM3   0.00000   0.00000   0.00000   0.10000   0.00697
SiT1   0.27690   0.08800   0.30270   0.50000   0.00583
AlT1   0.27690   0.08800   0.30270   0.50000   0.00583
SiT2   0.29170   0.17420   0.81720   1.00000   0.00570
O1   0.10200   0.09590   0.20720   1.00000   0.00950
O2   0.12040   0.17740   0.74760   1.00000   0.00874
O3   0.10990   0.00000   0.70810   1.00000   0.01102
O4   0.37120   0.25110   0.79950   1.00000   0.00950
O5   0.35170   0.13740   0.10490   1.00000   0.01077
O6   0.33930   0.12000   0.60570   1.00000   0.01127
O7   0.32820   0.00000   0.29220   1.00000   0.01545
H   0.19200   0.00000   0.74900   1.00000   0.01393
loop_
_atom_site_aniso_label
_atom_site_aniso_U_11
_atom_site_aniso_U_22
_atom_site_aniso_U_33
_atom_site_aniso_U_12
_atom_site_aniso_U_13
_atom_site_aniso_U_23
NaA 0.00873 0.03450 0.01275 0.00000 0.00400 0.00000
KA 0.00873 0.03450 0.01275 0.00000 0.00400 0.00000
NaAm 0.01930 0.03286 0.01289 0.00000 0.00250 0.00000
KAm 0.01930 0.03286 0.01289 0.00000 0.00250 0.00000
NaA2 0.02436 0.00164 0.05087 0.00000 0.00974 0.00000
KA2 0.02436 0.00164 0.05087 0.00000 0.00974 0.00000
CaM4 0.01195 0.00821 0.00963 0.00000 0.00599 0.00000
NaM4 0.01195 0.00821 0.00963 0.00000 0.00599 0.00000
Fe2+M4 0.01195 0.00821 0.00963 0.00000 0.00599 0.00000
MgM1 0.00965 0.00821 0.00475 0.00000 0.00325 0.00000
FeM1 0.00965 0.00821 0.00475 0.00000 0.00325 0.00000
AlM2 0.00735 0.00657 0.00719 0.00000 0.00200 0.00000
Fe2+M2 0.00735 0.00657 0.00719 0.00000 0.00200 0.00000
Fe3+M2 0.00735 0.00657 0.00719 0.00000 0.00200 0.00000
TiM2 0.00735 0.00657 0.00719 0.00000 0.00200 0.00000
MgM3 0.00965 0.00493 0.00556 0.00000 0.00125 0.00000
Fe2+M3 0.00965 0.00493 0.00556 0.00000 0.00125 0.00000
MnM3 0.00965 0.00493 0.00556 0.00000 0.00125 0.00000
SiT1 0.00689 0.00657 0.00461 0.00000 0.00125 -0.00047
AlT1 0.00689 0.00657 0.00461 0.00000 0.00125 -0.00047
SiT2 0.00689 0.00493 0.00488 -0.00087 0.00175 -0.00047
O1 0.01011 0.01150 0.00787 -0.00087 0.00275 -0.00047
O2 0.00781 0.00986 0.00814 0.00000 0.00150 -0.00047
O3 0.01057 0.01150 0.01031 0.00000 0.00225 0.00000
O4 0.01333 0.00657 0.00868 -0.00174 0.00474 -0.00047
O5 0.00919 0.01314 0.00923 0.00000 0.00100 0.00519
O6 0.00965 0.01314 0.01180 0.00087 0.00275 -0.00425
O7 0.01333 0.01643 0.01628 0.00000 0.00300 0.00000

Type Occurrence of Potassic-ferro-taramiteHide

Type Locality:

ⓘ Sierra de los Filabres, Almería, Andalusia, Spain

Geological Setting of Type Material:

meta-monzonite

Associated Minerals at Type Locality:

Quartz

Feldspar Group

Clinopyroxene Subgroup

Synonyms of Potassic-ferro-taramiteHide

IMA2007-015

Potassic-aluminotaramite

Other Language Names for Potassic-ferro-taramiteHide

German:Kalium-Aluminotaramit
Kalium-Aluminotaramit(in part)

Relationship of Potassic-ferro-taramite to other SpeciesHide

Member of:

Taramite Root Name Group > Sodium-Calcium Amphibole Subgroup > w(OH, F, Cl)-dominant Amphibole Group > Amphibole Supergroup

Other Members of this group:

Ferri-fluoro-taramite	Na(CaNa)(Mg₃Fe³⁺₂)(Al₂Si₆O₂₂)F₂
Ferri-taramite	Na(CaNa)(Mg₃Fe³⁺₂)(Al₂Si₆O₂₂)(OH)₂	Mon.
Ferro-ferri-fluoro-taramite	Na(CaNa)(Fe²⁺₃Fe³⁺₂)(Al₂Si₆O₂₂)F₂
Ferro-ferri-taramite	Na(CaNa)(Fe²⁺₃Fe³⁺₂)(Al₂Si₆O₂₂)(OH)₂
Ferro-fluoro-taramite	Na(CaNa)(Fe²⁺₃Al₂)(Al₂Si₆O₂₂)F₂
Ferro-taramite	Na(CaNa)(Fe²⁺₃Al₂)(Al₂Si₆O₂₂)(OH)₂	Mon. 2/m : B2/m
Fluoro-taramite	{Na}{CaNa}{Mg₃Al₂}(Al₂Si₆O₂₂)F₂	Mon. 2/m : B2/m
Potassic-ferri-taramite	K(CaNa)(Mg₃Fe³⁺₂)(Al₂Si₆O₂₂)(OH)
Potassic-ferro-ferri-taramite	K(CaNa)(Fe²⁺₃Fe³⁺₂)(Al₂Si₆O₂₂)(OH)₂	Mon. 2/m
Taramite	{Na}{CaNa}{Mg₃Al₂}(Al₂Si₆O₂₂)(OH)₂	Mon. 2/m : B2/m

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.

References for Potassic-ferro-taramiteHide

Reference List:

Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)

Obertii, R., Boiocchi, M., Smith, D.C., Mendenbach, O., Helmers H. (2008) Potassic-aluminotaramite from Sierra de los Filabres, Spain. European Journal of Mineralogy: 20: 1005–1010.

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: 2031-2048.

Internet Links for Potassic-ferro-taramiteHide

mindat.org URL:

https://www.mindat.org/min-41999.html
Please feel free to link to this page.

Search Engines:

Look for Potassic-ferro-taramite on Google

Look for Potassic-ferro-taramite images on Google

External Links:

Look for Potassic-ferro-taramite on Webmineral

Look for Potassic-ferro-taramite on Wikipedia

Look for Potassic-ferro-taramite on Mineralien Atlas

Raman and XRD data at RRUFF project

References and PDF downloads at RRUFF project

American Mineralogist Crystal Structure Database

Handbook of Mineralogy page PDF

Mineral Dealers:

High-end worldwide specimens & outstanding customer service

The Arkenstone - Fine Minerals

Blue Gems Australian & International

Quality Mineral Specimens For Sale ~ Cal Neva Mineral Company

Buy from McDougall Minerals

Heritage 1971 - Chinese Minerals

Wilensky Exquisite Minerals

Quality Minerals at Fair Prices

Top quality minerals from Kristalle of California

Lapis Mineral Magazin

Fabre Minerals - search for Potassic-ferro-taramite specimens

Localities for Potassic-ferro-taramiteHide

ⓘ - Click for 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.

Spain (TL)

Andalusia

Almería

ⓘ Sierra de los Filabres (TL)

Obertii, R., Boiocchi, M., Smith, D.C. Mendenbach, O. & Helmers H. (2008): Potassic-aluminotaramite from Sierra de los Filabres, Spain. European Journal of Mineralogy. 20: 1005–1010

Quick NavTop Classification Physical Properties Chemical Properties Crystallography Crystal Structure Type Occurrence Synonyms Other Languages Relationships Other Information References Internet Links Localities

版权所有© mindat.org1993年至2021年，除了规定的地方。 Mindat.org全赖于全球数千个以上成员和支持者们的参与。
隐私政策 - 条款和条款细则 - 联络我们 - Report a bug/vulnerability Current server date and time: 2021.1.19 20:59:05 Page generated: 2020.11.26 22:20:47

Go to top of page