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Sodic-ferrogedrite

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About Sodic-ferrogedriteHide

Formula:
{Na}{Fe2+2}{Fe2+3Al2}(Al3Si5O22)(OH)2
Formula is redefined in the 2012 amphibole nomenclature.
Lustre:
Vitreous
Hardness:
5½ - 6
Crystal System:
Orthorhombic
Name:
Named as the sodium-bearing and ferrous iron-dominant orthoamphibole resembling gedrite.


In order to better distinguish between amphibole end-member member compositions, the CNMNC has decided to rename sodic-ferrogedrite. The name is not yet (Nov 2012) decided.
Amphibole Group, Mg-Fe-Mn-Li Ortho-Amphibole Subgroup


Classification of Sodic-ferrogedriteHide

Notes:
Unnamed (probably valid)
Approval History:
Unnamed, but probably valid.
9.DD.05

9 : SILICATES (Germanates)
D : Inosilicates
D : Inosilicates with 2-periodic double chains, Si4O11; Orthoamphiboles

Physical Properties of Sodic-ferrogedriteHide

Vitreous
Hardness:
5½ - 6 on Mohs scale

Chemical Properties of Sodic-ferrogedriteHide

Formula:
{Na}{Fe2+2}{Fe2+3Al2}(Al3Si5O22)(OH)2

Formula is redefined in the 2012 amphibole nomenclature.

Crystallography of Sodic-ferrogedriteHide

Crystal System:
Orthorhombic

Other Language Names for Sodic-ferrogedriteHide

Relationship of Sodic-ferrogedrite to other SpeciesHide

Other Members of this group:
Anthophyllite Root Name☐{X2}{Z5}(Si8O22)(OH)2
Cummingtonite☐{Mg2}{Mg5}(Si8O22)(OH)2Mon.
Gedrite Root Name☐{X2+2}{Z2+3Z3+2}(Al2Si6O22)(OH)2Orth.
Grunerite☐{Fe2+2}{Fe2+5}(Si8O22)(OH)2Mon. 2/m : B2/m
Manganocummingtonite☐{Mn2+2}{Mg5}(Si8O22)(OH)2Mon. 2/m : B2/m
Manganogrunerite☐{Mn2+2}{Fe2+5}(Si8O22)(OH)2
Sodic-ferro-anthophyllite{Na}{Fe2+2}{Fe2+5}(AlSi7O22)(OH)2Orth.
Sodicanthophyllite{Na}{Mg2}{Mg5}(AlSi7O22)(OH)2Orth.
Sodicgedrite{Na}{Mg2}{Mg3Al2}(Al3Si5O22)(OH)2Orth.
Suenoite Root Name☐{X2}{Z5}(Si8O22)(OH)2
Forms a series with:

Related Minerals - Nickel-Strunz GroupingHide

9.DD.05Ferro-anthophyllite☐{Fe2+2}{Fe2+5}(Si8O22)(OH)2Orth.
9.DD.05Ferro-gedrite☐{Fe2+2}{Fe2+3Al2}(Al2Si6O22)(OH)2Orth.
9.DD.05Gedrite☐{Mg2}{Mg3Al2}(Al2Si6O22)(OH)2Orth.
9.DD.05Holmquistite☐{Li2}{Mg3Al2}(Si8O22)(OH)2Orth.
9.DD.05Proto-ferro-suenoite☐{Mn2+2}{Fe2+5}(Si8O22)(OH)2Orth.
9.DD.05Sodicanthophyllite{Na}{Mg2}{Mg5}(AlSi7O22)(OH)2Orth.
9.DD.05Sodic-ferro-anthophyllite{Na}{Fe2+2}{Fe2+5}(AlSi7O22)(OH)2Orth.
9.DD.05Sodicgedrite{Na}{Mg2}{Mg3Al2}(Al3Si5O22)(OH)2Orth.
9.DD.05Ferro-holmquistite☐{Li2}{Fe2+3Al2}(Si8O22)(OH)2Orth.
9.DD.05Proto-anthophyllite☐{Mg2}{Mg5}(Si8O22)(OH)2Orth. mmm (2/m 2/m 2/m) : Pnnm

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 Sodic-ferrogedriteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Hawthorne F.C. (1983) The crystal chemistry of the amphiboles. The Canadian Mineralogist: 21: 173-480.
Mandarino, J.A. (1998) The Second List of Additions and Corrections to the Glossary of Mineral Species (1995). The Amphibole Group. Mineralogical Record: 29: 169-174.
Hawthorne, F.C., Oberti, R. (2006) On the classification of amphiboles. The Canadian Mineralogist: 44: 1-21.
Hawthorne, F.C., Oberti, R., Harlow, G.E., Maresch, W.V., Martin, R.F., Schumacher, J.C., Welch, M.D. (2012) Nomenclature of the amphibole supergroup. American Mineralogist: 97: 2031-2048.

Internet Links for Sodic-ferrogedriteHide

Localities for Sodic-ferrogedriteHide

ⓘ - 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.
Finland
 
  • Western and Inner Finland Region
    • Orivesi
Probed
Japan
 
  • Honshu Island
    • Chubu Region
      • Gifu Prefecture
        • Ena City
recalculation of analysis published in Satoshi Matsubara et al (1980) Bulletin of the National Science Museum, Ser. C, 6(4), 107-113.
Spain
 
  • Andalusia
    • Málaga
      • Antequera
Christian Rewitzer collection; Romero Silva, J.C (2003). Minerales y Rocas de la Provincia de Málaga. CEDMA County Council 318 pp 1 map
Mineral and/or Locality  
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