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Ahlfeldite-Cobaltomenite Series

A solid-solution series between two end-member minerals

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Photos of Ahlfeldite-Cobaltomenite Series (63)Discuss Ahlfeldite-Cobaltomenite Series

Ahlfeldite-Cobaltomenite Series Gallery Search Photos of Ahlfeldite-Cobaltomenite Series

Edit Ahlfeldite-Cobaltomenite Series Add Synonym Edit CIF structures Clear Cache

Cobaltomenite, etc.

El Dragón mine, Porco Municipality, Antonio Quijarro Province, Potosí, Bolivia

Cobaltomenite

Molly Hogan group, Parco Mines, Yellow Cat Mesa, Thompsons Mining District, Grand County, Utah, USA

Cobaltomenite

North Mesa Mine Group, Temple Mountain Mining District, Emery County, Utah, USA

Cobaltomenite, etc.

El Dragón mine, Porco Municipality, Antonio Quijarro Province, Potosí, Bolivia

Cobaltomenite

Molly Hogan group, Parco Mines, Yellow Cat Mesa, Thompsons Mining District, Grand County, Utah, USA

Cobaltomenite

North Mesa Mine Group, Temple Mountain Mining District, Emery County, Utah, USA

Cobaltomenite, etc.

El Dragón mine, Porco Municipality, Antonio Quijarro Province, Potosí, Bolivia

Cobaltomenite

Molly Hogan group, Parco Mines, Yellow Cat Mesa, Thompsons Mining District, Grand County, Utah, USA

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About Ahlfeldite-Cobaltomenite SeriesHide

Crystal System:

Monoclinic

Series Formula:

Ni(SeO₃) · 2H₂O to CoSeO₃ · 2H₂O

A series between Ahlfeldite and Cobaltomenite

Unique IdentifiersHide

Mindat ID:

8586

Long-form identifier:

mindat:1:1:8586:7

Crystallography of Ahlfeldite-Cobaltomenite SeriesHide

Crystal System:

Monoclinic

Crystal StructureHide

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

ID	Species	Reference	Year	Locality	Temp (K)
0014382	Ahlfeldite	Larranaga A, Mesa J L, Pizarro J L, Pena A, Chapman J P, Arriortua M I, Rojo T (2005) Thermal, spectroscopic and magnetic properties of the CoxNi1-x(SeO3)2H2O (x = 0, 0.4, 1) phases crystal structure of Co0.4Ni0.6(SeO3)2H2O Materials Research Bulletin 40 781-793	2005	synthetic	293
0014846	Ahlfeldite	Wildner M (1990) Crystal structure refinements of synthetic cobaltomenite (CoSeO32H2O) and ahlfeldite (NiSeO32H2O) Neues Jahrbuch fur Mineralogie, Monatshefte 1990 353-362	1990	synthetic	293
0014845	Cobaltomenite	Wildner M (1990) Crystal structure refinements of synthetic cobaltomenite (CoSeO32H2O) and ahlfeldite (NiSeO32H2O) Neues Jahrbuch fur Mineralogie, Monatshefte 1990 353-362	1990	synthetic	293

CIF Raw Data - click here to close

data_global
_chemical_name_mineral 'Ahlfeldite'
loop_
_publ_author_name
'Larranaga A'
'Mesa J L'
'Pizarro J L'
'Pena A'
'Chapman J P'
'Arriortua M I'
'Rojo T'
_journal_name_full 'Materials Research Bulletin'
_journal_volume 40 
_journal_year 2005
_journal_page_first 781
_journal_page_last 793
_publ_section_title
;
 Thermal, spectroscopic and magnetic properties of the CoxNi1-x(SeO3)*2H2O
 (x = 0, 0.4, 1) phases crystal structure of Co0.4Ni0.6(SeO3)*2H2O
;
_database_code_amcsd 0014382
_chemical_compound_source 'Synthetic'
_chemical_formula_sum '(Ni.6 Co.4) Se O5 H4'
_cell_length_a 6.4681
_cell_length_b 8.7816
_cell_length_c 7.5668
_cell_angle_alpha 90
_cell_angle_beta 98.927
_cell_angle_gamma 90
_cell_volume 424.590
_exptl_crystal_density_diffrn      3.469
_symmetry_space_group_name_H-M 'P 1 21/n 1'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '1/2+x,1/2-y,1/2+z'
  '1/2-x,1/2+y,1/2-z'
  '-x,-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
Ni  -0.35030   0.13800   0.98200   0.60000   0.00800
Co  -0.35030   0.13800   0.98200   0.40000   0.00800
Se   0.10250   0.15230   0.83710   1.00000   0.00800
O1   0.17390   0.32540   0.76520   1.00000   0.01200
O2  -0.04080   0.19940   0.99750   1.00000   0.01300
O3   0.32790   0.09240   0.96670   1.00000   0.01100
O4w   0.11580   0.43490   0.20670   1.00000   0.01400
O5w  -0.41850   0.35920   0.92190   1.00000   0.01500
H1   0.07200   0.36500   0.13200   1.00000   0.02800
H2   0.00900   0.50100   0.19800   1.00000   0.02800
H3  -0.33900   0.42500   0.86900   1.00000   0.02800
H4  -0.55400   0.36800   0.87900   1.00000   0.02800

Other Language Names for Ahlfeldite-Cobaltomenite SeriesHide

Norwegian:Ahlfelditt-Kobaltomenitt Serienes

Common AssociatesHide

Associated Minerals Based on Photo Data:

1 photo of Ahlfeldite-Cobaltomenite Series associated with Penroseite	(Ni,Co,Cu)Se₂
1 photo of Ahlfeldite-Cobaltomenite Series associated with Goethite	Fe³⁺O(OH)

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.

Internet Links for Ahlfeldite-Cobaltomenite SeriesHide

mindat.org URL:

https://www.mindat.org/min-8586.html
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References for Ahlfeldite-Cobaltomenite SeriesHide

Reference List:

Localities for Ahlfeldite-Cobaltomenite SeriesHide

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.


Argentina
Mendoza Province Luján de Cuyo department Cacheuta District ⓘ Sierra de Cacheuta	[Cobaltomenite] Grundmann et al. (2018)
ⓘ Cerro de Cacheuta	[Cobaltomenite] Palache et al. (1951) +1 other reference
ⓘ Cacheuta Mine	[Cobaltomenite] Ahlfeld Friedrich and Angelelll ... +2 other references

Bolivia
Potosí Antonio Quijarro Province Porco Municipality ⓘ El Dragón mine	[Ahlfeldite] Schnorrer-Köhler et al. (1990) +3 other references
Chayanta Province Colquechaca Municipality ⓘ ~~"Hiaca Mine"~~	[Cobaltomenite] Livingstone et al. (1984)
Pakajake Canyon ⓘ Virgen de Surumi mine	[Ahlfeldite] Herzenberg (1935) +3 other references

DR Congo
Lualaba Mutshatsha Kolwezi ⓘ Musonoi Mine	[Cobaltomenite] Deliens (1996) +2 other references

USA
Utah Emery County Temple Mountain Mining District North Mesa Mine Group ⓘ Lopez Incline	[Cobaltomenite] Patrick Haynes
ⓘ North Mesa Mine	[Cobaltomenite] Collected by and in the collection of ...
Grand County ⓘ Thompsons Mining District	[Cobaltomenite]
ⓘ School Section 32; 22-22	[Cobaltomenite] Kampf et al. (2025)
Yellow Cat Mesa ⓘ Little Eva Mine	[Cobaltomenite] Thorne (n.d.) +2 other references
Parco Mines ⓘ Molly Hogan group	[Cobaltomenite] King et al. (1995)
ⓘ