Ferroericssonite (original) (raw)

A valid IMA mineral species

About FerroericssoniteHide

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Formula:

BaFe2+2 Fe3+(Si2O7)O(OH)

Colour:

Dark reddish brown

Crystal System:

Monoclinic

Name:

Named for being the Fe2+ analogue of ericssonite. The root name is for John Ericsson (31 July 1803, Långbanshyttan, Värmland, Sweden – 8 March 1889, New York, USA), an inventor and mechanical engineer.

Co-Type Localities:

ⓘ Esquire No. 7 claim, Big Creek, Big Creek-Rush Creek Mining District, Fresno County, California, USA
ⓘ Esquire No. 8 claim, Big Creek, Big Creek-Rush Creek Mining District, Fresno County, California, USA

Unique IdentifiersHide

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Long-form identifier:

mindat:1:1:40566:3

64740783-e6f8-41e9-9047-9c76801e3f02

IMA Classification of FerroericssoniteHide

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IMA Formula:

BaFe2+2Fe3+(Si2O7)O(OH)

Classification of FerroericssoniteHide

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9.00.

9 : SILICATES (Germanates)
0 :
0 :

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 FerroericssoniteHide

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Colour:

Dark reddish brown

Comment:

Calculated densities : 4.445 and 4.413 g/cm3 on the basis of the empirical formulas for Esquire #7 and Esquire #8 material, respectively

Optical Data of FerroericssoniteHide

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RI values:

_n_α = 1.827(3) _n_β = 1.845(3) _n_γ = 1.920(6)

2V:

Measured: 63° (2), Calculated: 63.0°

δ = 0.093

Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.

Dispersion:

Parallel, r < v

Chemistry of FerroericssoniteHide

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Mindat Formula:

BaFe2+2 Fe3+(Si2O7)O(OH)

Crystallography of FerroericssoniteHide

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Crystal System:

Monoclinic

Class (H-M):

2/m - Prismatic

Cell Parameters:

a = 20.3459(10) Å, b = 7.0119(3) Å, c = 5.3879(4) Å
β = 94.874(7)°

Ratio:

a:b:c = 2.902 : 1 : 0.768

Unit Cell V:

765.88 ų (Calculated from Unit Cell)

Morphology:

Flattened on {100} and elongate and striated parallel to [001].

Crystal StructureHide

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X-Ray Powder DiffractionHide

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Powder Diffraction Data:

Geological EnvironmentHide

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Type Occurrence of FerroericssoniteHide

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Co-Type Localities:

ⓘ Esquire No. 7 claim, Big Creek, Big Creek-Rush Creek Mining District, Fresno County, California, USA
ⓘ Esquire No. 8 claim, Big Creek, Big Creek-Rush Creek Mining District, Fresno County, California, USA

General Appearance of Type Material:

Crystals occur in dark reddish brown foliated masses of irregular, undulating striated blades up to several mm in length.

Place of Conservation of Type Material:

Natural History Museum of Los Angeles County, Los Angeles, California, USA, (63206 - Esquire 7 and 63207 - Esquire 8).

Geological Setting of Type Material:

As late stage mineral in a sequence of minerals resulting from fluids interacting with a quartz–sanbornite vein along its margin with the country rock.

Associated Minerals at Type Locality:

Synonyms of FerroericssoniteHide

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Relationship of Ferroericssonite 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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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 FerroericssoniteHide

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References for FerroericssoniteHide

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Reference List:

Kampf, A. R., Roberts, A. C., Venance, K. E., Dunning, G. E., Walstrom, R. E. (2011) Ferroericssonite, the Fe2+ analogue of ericssonite, from eastern Fresno County, California, USA. The Canadian Mineralogist, 49 (2). 587-594 doi:10.3749/canmin.49.2.587

Localities for FerroericssoniteHide

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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.