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Ferroericssonite

A valid IMA mineral species
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BaFe2+2 Fe3+(Si2O7)O(OH)
Colour:
Dark reddish brown
Lustre:
Vitreous
Hardness:
4½
Crystal System:
Monoclinic
Member of:
Ericssonite Group
Name:
Named for being the Fe2+ analogue ofericssonite. 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
Fe2+ analogue toericssonite.


Unique Identifiers
IMA Formula:
BaFe2+2Fe3+(Si2O7)O(OH)
Approval year:
2010
First published:
2011

Classification of Ferroericssonite

9 : SILICATES (Germanates)
0 :
0 :

Mineral Symbols
Transparency:
Transparent
Colour:
Dark reddish brown
Streak:
Brown
Hardness:
4½ onMohs 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 Ferroericssonite
Surface Relief:
Moderate
Dispersion:
Parallel, r < v

Chemistry of Ferroericssonite

Crystallography of Ferroericssonite
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:
AnanditeBaziriteCelsianDevitoiteQuartz
Titantaramellite

Synonyms of Ferroericssonite

Other Language Names for Ferroericssonite

Relationship of Ferroericssonite to other Species
Other Members of Ericssonite Group:
EricssoniteBaMn2+2Fe3+(Si2O7)O(OH)Mon. 2/m :B2/m
ZinkgruvaniteBa4Mn2+4Fe3+2(Si2O7)2(SO4)2O2(OH)2Tric.1 :P1

Common AssociatesMon. 2/m :B2/m9.00.MendigiteMn2Mn2MnCa(Si3O9)2Tric.1 :P19.00.AlflarseniteNaCa2Be3Si4O13(OH) · 2H2OMon. 2 :P219.00.Bridgmanite SubgroupABSiO39.00.ZvyaginiteNaZnNb2Ti[Si2O7]2(OH,F)3(H2O)4+x (x < 1)Tric.1 :P19.00.BurnettiteCaVAlSiO6Mon. 2/m :B2/b9.00.Ferrisepiolite(Fe3+,Fe2+,Mg)4((Si,Fe3+)6O15)(O,OH)2 · 6H2OOrth.mmm(2/m2/m2/m)9.00.YegoroviteNa4[Si4O8(OH)4] · 7H2OMon. 2/m :P21/b9.00.ChrysotileMg3(Si2O5)(OH)4Mon.m :Bb9.00.Shkatulkalita

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    • References for FerroericssoniteⓘEsquire No. 7 claim (TL)Walstrom (n.d.)+2 other referencesWalstrom (n.d.)+2 other referencesKampf et al. (2011)Kampf et al. (2011)
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