Nikischerite (original) (raw)

A valid IMA mineral species

About NikischeriteHide

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Formula:

Fe2+6Al3(OH)18[Na(H2O)6](SO4)2 · 6H2O

Colour:

Dark green, brownish

Lustre:

Greasy, Pearly, Dull

Name:

For American mineralogist and mineral dealer, Anthony J. Nikischer (b. 1949), who first analyzed the mineral.

Unique IdentifiersHide

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Long-form identifier:

mindat:1:1:10934:3

3e59e168-52a5-49b0-9edf-a0efe1ff7df5

IMA Classification of NikischeriteHide

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Type description reference:

Roberts, Andrew C., Grice, Joel D., Hawthorne, Frank C., Huminicki, Danielle M.C., Jambor, John L. (2003) Nikischerite, a New Mineral from the Huanuni Tin Mine, Dalence Province, Oruro Department, Bolivia. The Mineralogical Record, 34 (2) 155-158

Classification of NikischeriteHide

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7.DD.35

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
D : Sulfates (selenates, etc.) with additional anions, with H2O
D : With only medium-sized cations; sheets of edge-sharing octahedra

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.

Physical Properties of NikischeriteHide

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Transparency:

Transparent, Translucent

Colour:

Dark green, brownish

Comment:

Green when fresh; oxidises to ochre brown.

Streak:

Pale grayish green

Fracture:

Irregular/Uneven

Density:

2.33(2) g/cm3 (Measured) 2.30 g/cm3 (Calculated)

Optical Data of NikischeriteHide

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Pleochroism:

Non-pleochroic

Chemistry of NikischeriteHide

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Mindat Formula:

Fe2+6Al3(OH)18[Na(H2O)6](SO4)2 · 6H2O

Crystallography of NikischeriteHide

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Class (H-M):

3 - Rhombohedral

Cell Parameters:

a = 9.347(1) Å, c = 33.000(7) Å

Morphology:

Platy habit with dominant {001}.

Crystal StructureHide

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ID	Species	Reference	Link	Year	Locality	Pressure (GPa)	Temp (K)
0005826	Nikischerite	Huminicki D M C, Hawthorne F C (2003) The crystal structure of nikischerite, NaFeAl3(SO4)2(OH)18(H2O)12, a mineral of the shigaite group The Canadian Mineralogist 41 79-82		2003	0	293

CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

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Powder Diffraction Data:

Geological EnvironmentHide

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Type Occurrence of NikischeriteHide

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General Appearance of Type Material:

Small micaceous plates, to 4 mm, forming isolated raditing balls and aggregates reaching 1 cm across.

Place of Conservation of Type Material:

Canadian Museum of Nature, Ottawa, Ontario, Canada (CMNMC 83499).

Geological Setting of Type Material:

Low temperature hydrothermal veins.

Associated Minerals at Type Locality:

Reference:

Huminicki, D.M.C., Hawthorne, F.C., Grice, J.D., Roberts, A.C., Jambor, J.L. (2003) Nikischerite, a new mineral from the Huanuni tin mine, Dalence Province, Oruro Department, Bolivia. The Mineralogical Record, 34, 155–158.

Synonyms of NikischeriteHide

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Other Language Names for NikischeriteHide

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Relationship of Nikischerite to other SpeciesHide

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Other Members of this group:

Common AssociatesHide

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Associated Minerals Based on Photo Data:

Related Minerals - Strunz-mindat GroupingHide

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Fluorescence of NikischeriteHide

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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.

Internet Links for NikischeriteHide

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References for NikischeriteHide

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Reference List:

Roberts, Andrew C., Grice, Joel D., Hawthorne, Frank C., Huminicki, Danielle M.C., Jambor, John L. (2003) Nikischerite, a New Mineral from the Huanuni Tin Mine, Dalence Province, Oruro Department, Bolivia. The Mineralogical Record, 34 (2) 155-158

Roberts, Andrew C., Grice, Joel D., Hawthorne, Frank C., Huminicki, Danielle M.C., Jambor, John L. (2003) Nikischerite, a New Mineral from the Huanuni Tin Mine, Dalence Province, Oruro Department, Bolivia. The Mineralogical Record, 34 (2) 155-158

Mills, S. J., Christy, A. G., Génin, J.-M. R., Kameda, T., Colombo, F. (2012) Nomenclature of the hydrotalcite supergroup: natural layered double hydroxides. Mineralogical Magazine, 76 (5) 1289-1336 doi:10.1180/minmag.2012.076.5.10

Localities for NikischeriteHide

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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

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- 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.