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Ferroericssonite

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About FerroericssoniteHide

John Ericsson
Formula:
BaFe2+2 Fe3+(Si2O7)O(OH)
Colour:
Dark reddish brown
Lustre:
Vitreous
Hardness:
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.
Fe2+ analogue to ericssonite.


Classification of FerroericssoniteHide

Approved
Approval Year:
2010
9.00.

9 : SILICATES (Germanates)
0 :
0 :

Physical Properties of FerroericssoniteHide

Vitreous
Transparency:
Transparent
Colour:
Dark reddish brown
Streak:
Brown
Hardness:
4½ on Mohs scale
Tenacity:
Brittle
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

Type:
Biaxial (+)
RI values:
nα = 1.827(3) nβ = 1.845(3) nγ = 1.920(6)
2V:
Measured: 63° (2), Calculated: 63.0°
Max Birefringence:
δ = 0.093
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Very High
Dispersion:
Parallel, r < v

Chemical Properties of FerroericssoniteHide

Formula:
BaFe2+2 Fe3+(Si2O7)O(OH)
IMA Formula:
BaFe2+2Fe3+(Si2O7)O(OH)

Crystallography of FerroericssoniteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/m
Setting:
C2/m
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].

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.708 (43)
3.506 (81)
3.027 (38)
2.880 (42)
2.788 (100)
2.663 (83)
2.126 (55)
1.641 (43)

Type Occurrence of FerroericssoniteHide

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

Relationship of Ferroericssonite to other SpeciesHide

Other Members of this group:
EricssoniteBaMn2+2Fe3+(Si2O7)O(OH)Mon. 2/m : B2/m

Related Minerals - Nickel-Strunz GroupingHide

9.00.Clino-ferri-holmquistite◻{Li2}{Mg3Fe3+2}(Si8O22)(OH)2Mon. 2/m : B2/m
9.00.Shkatulkalita
9.00.AlflarseniteNaCa2Be3Si4O13(OH) · 2H2OMon. 2 : P21
9.00.YegoroviteNa4[Si4O8(OH)4] · 7H2OMon. 2/m : P21/b
9.00.Ferrisepiolite(Fe3+,Fe2+,Mg)4((Si,Fe3+)6O15)(O,OH)2 · 6H2OOrth. mmm (2/m 2/m 2/m)
9.00.ZvyaginiteNaZnNb2Ti[Si2O7]20(OH,F)3(H2O)4 + (x < 1)Tric. 1 : P1
9.00.BurnettiteCaVAlSiO6Mon. 2/m : B2/b
9.00.MendigiteMn2Mn2MnCa(Si3O9)2Tric. 1 : P1
9.00.20Rinkite-(Ce)(Ca3Ce)Na(NaCa)Ti(Si2O7)2(OF)F2Mon.

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 FerroericssoniteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Kampf, A.R., Roberts, A.C., Venance, K.E., Dunning, G.E. and Walstrom, R.E. (2010) Ferroericssonite, IMA 2010-025. CNMNC Newsletter, August 2010, page 799; Mineralogical Magazine: 74: 797-800.
Kampf, A.R., Roberts, A.C., Venance, K.E., Dunning, G.E., Robert E. Walstrom, R.E. (2011) Ferroericssonite, The Fe2+ analogue of ericssonite, from Eastern Fresno County, California, U.S.A. Canadian Mineralogist: 49: 587-594.

Internet Links for FerroericssoniteHide

Localities for FerroericssoniteHide

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 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.
USA (TL)
 
  • California
    • Fresno Co.
      • Big Creek-Rush Creek District
        • Rush Creek deposit
          • Big Creek
Kampf, A.R., Roberts, A.C., Venance, K.E., Dunning, G.E., Robert E. Walstrom, R.E. (2011): Ferroericssonite, The Fe2+ analogue of ericssonite, from Eastern Fresno County, California, U.S.A. Canadian Mineralogist, 49, 587-594.
Kampf, A.R., Roberts, A.C., Venance, K.E., Dunning, G.E. and Walstrom, R.E. (2010) Ferroericssonite, IMA 2010-025. CNMNC Newsletter, August 2010, page 799; Mineralogical Magazine, 74, 797-800 ; Kampf, A.R., Roberts, A.C., Venance, K.E., Dunning, G.E., Robert E. Walstrom, R.E. (2011): Ferroericssonite, The Fe2+ analogue of ericssonite, from Eastern Fresno County, California, U.S.A. Canadian Mineralogist, 49, 587-594.
    • Mariposa Co.
      • East Belt
        • Clearing House District
          • Clearing House
Kampf, A.R., Roberts, A.C., Venance, K.E., Dunning, G.E., Robert E. Walstrom, R.E. (2011): Ferroericssonite, The Fe2+ analogue of ericssonite, from Eastern Fresno County, California, U.S.A. Canadian Mineralogist, 49, 587-594.
Kampf, A.R., Roberts, A.C., Venance, K.E., Dunning, G.E., Robert E. Walstrom, R.E. (2011), Ferroericssonite, The Fe2+ analogue of ericssonite, from Eastern Fresno County, California, U.S.A., Canadian Mineralogist: 49: 587-594.
Mineral and/or Locality  
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