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Magnesiocarpholite

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Formula:
(Mg,Fe2+)Al2(Si2O6)(OH)4
Hardness:
5 - 5½
Crystal System:
Orthorhombic
Hide all sections | Show all sections

Classification of MagnesiocarpholiteHide

Approved
9.DB.05

9 : SILICATES (Germanates)
D : Inosilicates
B : Inosilicates with 2-periodic single chains, Si2O6; Pyroxene-related minerals
65.1.5.3

65 : INOSILICATES Single-Width,Unbranched Chains,(W=1)
1 : Single-Width Unbranched Chains, W=1 with chains P=2
16.19.12

16 : Silicates Containing Aluminum and other Metals
19 : Aluminosilicates of Fe and Mg

Physical Properties of MagnesiocarpholiteHide

Hardness:
5 - 5½ on Mohs scale

Optical Data of MagnesiocarpholiteHide

Type:
Biaxial (-)
RI values:
nα = 1.590 nβ = 1.600 nγ = 1.610
2V:
Measured: 50° to 60°, Calculated: 88°
Max Birefringence:
δ = 0.020
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
r > v distinct

Chemical Properties of MagnesiocarpholiteHide

Formula:
(Mg,Fe2+)Al2(Si2O6)(OH)4
IMA Formula:
MgAl2Si2O6(OH)4
Common Impurities:
Ti,Fe,Mn,Ca,Na,K,H2O,P

Crystallography of MagnesiocarpholiteHide

Crystal System:
Orthorhombic
Cell Parameters:
a = 13.71 Å, b = 20.07 Å, c = 5.1 Å
Ratio:
a:b:c = 0.683 : 1 : 0.254
Unit Cell V:
1,403.31 ų (Calculated from Unit Cell)

Type Occurrence of MagnesiocarpholiteHide

Synonyms of MagnesiocarpholiteHide

Other Language Names for MagnesiocarpholiteHide

Relationship of Magnesiocarpholite to other SpeciesHide

Other Members of this group:
CarpholiteMn2+Al2(Si2O6)(OH)4Orth.
Ferrocarpholite(Fe2+,Mg)Al2(Si2O6)(OH)4Orth. mmm (2/m 2/m 2/m) : Ccca
Potassiccarpholite(K,☐)(Li,Mn2+)2Al4(Si2O6)2(OH,F)8Orth. mmm (2/m 2/m 2/m) : Ccca
VanadiocarpholiteMn2+V3+Al(Si2O6)(OH)4Orth. mmm (2/m 2/m 2/m) : Ccca
Forms a series with:

Related Minerals - Nickel-Strunz GroupingHide

9.DB.05BalipholiteBaLiMg2Al3(Si2O6)2(OH)4Orth.
9.DB.05CarpholiteMn2+Al2(Si2O6)(OH)4Orth.
9.DB.05Ferrocarpholite(Fe2+,Mg)Al2(Si2O6)(OH)4Orth. mmm (2/m 2/m 2/m) : Ccca
9.DB.05Potassiccarpholite(K,☐)(Li,Mn2+)2Al4(Si2O6)2(OH,F)8Orth. mmm (2/m 2/m 2/m) : Ccca
9.DB.05VanadiocarpholiteMn2+V3+Al(Si2O6)(OH)4Orth. mmm (2/m 2/m 2/m) : Ccca
9.DB.10LorenzeniteNa2Ti2(Si2O6)O3Orth. mmm (2/m 2/m 2/m) : Pbcn
9.DB.15LintisiteLiNa3Ti2(Si2O6)2O2 · 2H2OMon.
9.DB.15PunkaruaiviteLiTi2(HSi4O12)(OH)2 · H2OMon. 2/m : B2/b
9.DB.17EliseeviteLiNa1.5Ti2(H1.5Si4O12)O2 · 2H2OMon. 2/m : B2/b
9.DB.20KukisvumiteNa6ZnTi4(Si8O24)O4 · 4H2OOrth.
9.DB.20ManganokukisvumiteNa6MnTi4(Si8O24)O4 · 4H2OOrth. mmm (2/m 2/m 2/m) : Pccn
9.DB.25VinogradoviteNa4Ti4(Si2O6)2[(Si,Al)4O10]O4 · (H2O,Na,K)3Mon. 2/m : B2/b
9.DB.25ParavinogradoviteNa1-2(Ti,Fe3+)4(Si2O6)2(AlSi3O10)(OH)4 · H2OTric. 1 : P1
9.DB.30NchwaningiteMn2+2(SiO3)(OH)2 · H2OOrth.
9.DB.35PlancheiteCu8(Si8O22)(OH)4 · H2OOrth. mmm (2/m 2/m 2/m)
9.DB.40ShattuckiteCu5(Si2O6)2(OH)2Orth. mmm (2/m 2/m 2/m)
9.DB.40UM2005-31-SiO:CuHCu11(SiO4)(OH)18 · 9H2O ?
9.DB.45Aerinite(Ca5.1Na0.5)(Fe3+,Al,Fe2+,Mg)4(Al,Mg)6[HSi12O36(OH)12][(CO3)1.2(H2O)12]Mon.
9.DB.50CapranicaiteKCaNaAl4B4Si2O18Mon. 2/m : P21/m

Related Minerals - Dana Grouping (8th Ed.)Hide

65.1.5.1CarpholiteMn2+Al2(Si2O6)(OH)4Orth.
65.1.5.2Ferrocarpholite(Fe2+,Mg)Al2(Si2O6)(OH)4Orth. mmm (2/m 2/m 2/m) : Ccca
65.1.5.4BalipholiteBaLiMg2Al3(Si2O6)2(OH)4Orth.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

16.19.1IndialiteMg2Al3(AlSi5O18)Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
16.19.2Cordierite(Mg,Fe)2Al3(AlSi5O18)Orth. mmm (2/m 2/m 2/m) : Cccm
16.19.3Sekaninaite(Fe,Mg)2Al3(AlSi5O18)Orth.
16.19.4Ferro-gedrite☐{Fe2+2}{Fe2+3Al2}(Al2Si6O22)(OH)2Orth.
16.19.5StauroliteFe2+2Al9Si4O23(OH)Mon. 2/m : B2/m
16.19.6Chloritoid(Fe2+,Mg,Mn2+)Al2(SiO4)O(OH)2Mon. 2/m : B2/b
16.19.7AmesiteMg2Al(AlSiO5)(OH)4Tric. 1 : P1
16.19.8Corundophilite(Mg,Fe,Al)6(Si,Al)4O10(OH)8
16.19.9YoderiteMg(Al,Fe3+)3(SiO4)2O(OH)Mon. 2/m : P21/m
16.19.10Delessite(Mg,Fe,Fe,Al)(Si,Al)4O10(O,OH)8
16.19.11Ferrocarpholite(Fe2+,Mg)Al2(Si2O6)(OH)4Orth. mmm (2/m 2/m 2/m) : Ccca
16.19.13Chamosite(Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)8Mon.
16.19.14Orthochamosite(Fe2+,Mg,Fe3+)5Al(AlSi3O10)(OH,O)8
16.19.15Berthierine(Fe2+,Fe3+,Al)3(Si,Al)2O5(OH)4Mon. m : Bm
16.19.16Odinite(Fe,Mg,Al,Fe,Ti,Mn)2.4((Si,Al)2O5)(OH)4Mon. m : Bm
16.19.17ClinochloreMg5Al(AlSi3O10)(OH)8Mon. 2/m : B2/m
16.19.18Gedrite☐{Mg2}{Mg3Al2}(Al2Si6O22)(OH)2Orth.
16.19.19Magnesiogedrite☐{Mg2}{Mg3Al2}(Al2Si6O22)(OH)2
16.19.20Diabantite(Mg,Fe,Al)6((Si,Al)4O10)(OH)8
16.19.21SudoiteMg2Al3(Si3Al)O10)(OH)8Mon.
16.19.22VermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2OMon. 2/m
16.19.23Corrensite(Mg,Fe)9((Si,Al)8O20)(OH)10 · nH2OOrth.

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 MagnesiocarpholiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
American Mineralogist (1981): 66: 1080-1085.
Chopin, C. and Schreyer, W. (1983) Magnesio-carpholite and magnesiochloritoid: two index minerals of pelitic blueschists and their preliminary phase relations n the model system MgO-Al2O3-SiO2-H2O. American Journal of Science: 283-A: 72-96.
Comptes rendu de l’Académie des sciences de Paris: 277: 1965-1968.
Bulletin de la Société française de Minéralogie et de Cristallographie (1980): 103: 299.
Mineralogical Magazine (1992): 56: 835-838.
Vidal, O., Goffé, B., and Theye, T. (1992) Experimental study of the stability of sudoite and magnesiocarpholite and calculation of a new petrogenic grid for the system FeO-MgO-Al2O3-SiO2-H2O. Journal of Metamorphic Geology: 10: 603-614.
Fuchs, Y.; Mellini, M.; Memmi, I. (2001): Crystal-chemistry of magnesiocarpholite: controversial X-ray diffraction, Mossbauer, FTIR and Raman results. European Journal of Mineralogy Volume 13 Number 3 (2001), p. 533 - 543. (http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.558.3029&rep=rep1&type=pdf)
Bertoldi, C., Dachs, E., Theye, T., Cemič, L., Behrens, H., and Amthauer, G. (2004b) Heat capacities of natural magnesio- and ferrocarpholite. European Journal of Mineralogy, Berichte der Deutschen Mineralogischen Gesellschaft, Beiheft No 1, 16, 14.
Bertoldi, C., Dachs, E., and Theye, T. (2006) Calorimetric data for naturally occurring magnesiocarpholite and ferrocarpholite. American Mineralogist: 91: 441-445.
Basso, R., Carbone, C. (2010): Relationships between crystal data and crystal chemistry of carpholite-group minerals. Periodico di Mineralogia 79, 91-98.

Internet Links for MagnesiocarpholiteHide

Localities for MagnesiocarpholiteHide

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.
France (TL)
 
  • Auvergne-Rhône-Alpes
    • Savoie
Compt. Rendus Acad. Sci. Paris, 277, 1965-1968; Contr. Min. Pet. 76 (1981), 260
Germany
 
  • Saxony-Anhalt
    • Harz
Lapis 15(7/8), 59-60 (1990)
Greece
 
  • Crete Department (Kriti)
    • Crete Island (Kriti)
      • Chania Prefecture (Khania; Chaníon)
        • Kissamos
Viswanathan, K., & Seidel, E. (1979). Crystal chemistry of Fe-Mg-carpholites. Contributions to Mineralogy and Petrology, 70(1), 41-47.
Eur. J. Mineral. , 1992, 4, pp. 487-507.
      • Heraklion Prefecture (Iraklion)
        • Heraklion (Iraklion)
Eur. J. Mineral. , 1992, 4, pp. 487-507.
      • Rethymnon Prefecture
Viswanathan, K., & Seidel, E. (1979). Crystal chemistry of Fe-Mg-carpholites. Contributions to Mineralogy and Petrology, 70(1), 41-47.
  • Peloponnese Department (Peloponnisos)
    • Lakonia Prefecture (Laconia)
Eur. J. Mineral. , 1992, 4, pp. 487-507.
Eur. J. Mineral. , 1992, 4, pp. 487-507.
Italy
 
  • Piedmont
    • Cuneo Province
      • Corsaglia Valley
Piccoli, G.C., Maletto, G., Bosio, P., Lombardo, B. (2007). Minerali del Piemonte e della Valle d'Aosta. Associazione Amici del Museo "F. Eusebio" Alba, Ed., Alba (Cuneo) 607 pp.
      • Grana Valley
        • Castelmagno
Piccoli, G.C. (2002): I minerali delle Alpi Marittime e Cozie. Provincia di Cuneo. Associazione Amici del Museo "F. Eusebio" di Alba, Ed., Alba, 362 pp.
      • Maira Valley
Piccoli, G. C., Maletto, G., Bosio, P., & Lombardo, B. (2007). Minerali del Piemonte e della Valle d'Aosta. Associazione Amici del Museo F. Eusebio - Alba, 607 pag.
      • Tanaro Valley
        • Priola
          • Casario
Rossetti P., Ferrero S. (2008): The Zn–Pb deposits of Casario (Ligurian Alps, NW Italy): late Palaeozoic sedimentary–exhalative bodies affected by the alpine metamorphism. Geodinamica Acta, 21, 117-137.
      • Vermenagna Valley
        • Robilante
Goffé, B. (2002): Località a ferro- e magnesiocarpholite nelle Alpi Cozie e Marittime. In: Piccoli, G.C., I minerali delle Alpi Marittime e Cozie. Provincia di Cuneo. Associazione Amici del Museo "F. Eusebio" di Alba, Ed., Alba, 137-139; Piccoli, G.C., Maletto, G., Bosio, P., Lombardo, B. (2007): Minerali del Piemonte e della Valle d'Aosta. Amici del Museo "F. Eusebio" di Alba, Ed., Alba, 607 pp.
Goffé, B. (2002): Località a ferro- e magnesiocarpholite nelle Alpi Cozie e Marittime. In: Piccoli, G.C., I minerali delle Alpi Marittime e Cozie. Provincia di Cuneo. Associazione Amici del Museo "F. Eusebio" di Alba, Ed., Alba, 137-139; Piccoli, G.C., Maletto, G., Bosio, P., Lombardo, B. (2007): Minerali del Piemonte e della Valle d'Aosta. Amici del Museo "F. Eusebio" di Alba, Ed., Alba, 607 pp.
  • Tuscany
    • Grosseto Province
Eur. J. Mineral., 9, 859-873 Fuchs, Y.; Mellini, M.; Memmi, I. (2001): Crystal-chemistry of magnesiocarpholite: controversial X-ray diffraction, Mossbauer, FTIR and Raman results. European Journal of Mineralogy Volume 13 Number 3 (2001), p. 533 - 543. (http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.558.3029&rep=rep1&type=pdf)
Theye T., Reinhardt J., Goffé B., Jolivet L., Brunet C. (1997): Ferro- and magnesiocarpholite from the Monte Argentario (Italy): First evidence for high-pressure metamorphism of the metasedimentary Verrucano sequence, and significance for P-T path reconstruction. Eur. J. Mineral., 9, 859-873; Jolivet L., Faccenna C., Goffè B., Mattei M., Rossetti F., Brunet Ch., Storti F., Funiciello R., Cadet J.P., D’Agostino N., Parra T. (1998): Mid-crustal shear zones in post-orogenic extension: example from the Northern Tyrrhenian sea. J. Geoph. Res., 103, B6, 123-160.; Reinhardt J., Rossetti F. (2004): Monte Argentario and Isola del Giglio (Southern Tuscany, Italy): a record from continental break-up to subduction, orogenic wedge formation, and post-orogenic extension. 32nd International Geological Congress (IGC), Florence, August 20-28, 2004. Post-Congress P61. Field Trip Guide Book - P61, 19 pp.
Theye T., Reinhardt J., Goffé B., Jolivet L., Brunet C. (1997): Ferro- and magnesiocarpholite from the Monte Argentario (Italy): First evidence for high-pressure metamorphism of the metasedimentary Verrucano sequence, and significance for P-T path reconstruction. Eur. J. Mineral., 9, 859-873; Jolivet L., Faccenna C., Goffè B., Mattei M., Rossetti F., Brunet Ch., Storti F., Funiciello R., Cadet J.P., D’Agostino N., Parra T. (1998): Mid-crustal shear zones in post-orogenic extension: example from the Northern Tyrrhenian sea. J. Geoph. Res., 103, B6, 123-160.; Reinhardt J., Rossetti F. (2004): Monte Argentario and Isola del Giglio (Southern Tuscany, Italy): a record from continental break-up to subduction, orogenic wedge formation, and post-orogenic extension. 32nd International Geological Congress (IGC), Florence, August 20-28, 2004. Post-Congress P61. Field Trip Guide Book - P61, 19 pp.
Giorgetti G., Goffé B., Memmi I., Nieto F. (1998): Metamorphic evolution of Verrucano metasediments in northern Apennines: new petrological constraints. Eur. J. Mineral., 10, 1295-1308; Fuchs Y., Mellini M., Memmi I. (2001): Crystal-chemistry of magnesiocarpholite: controversial X-ray diffraction, Mössbauer, FTIR and Raman results. Eur. J. Mineral., 13, 533–543.
Spain
 
  • Andalusia
    • Almería
      • Sierra Alhamilla
        • Tabernas
B. Goffé et al. , Eur. J. Mineral. , 1996, 8, pp. 335-348.
    • Granada
Eur. J. Mineral. , 1989, 1, pp. 139-142..
      • Salobreña unit
B. Goffé et al. , Eur. J. Mineral. , 1996, 8, pp. 335-348.
J.M. Azanon and B. Goffé, Eur. J. Mineral., 1997, 9, pp. 1035-1051.
Switzerland
 
  • Grischun (Grisons; Graubünden)
    • Engadin
      • Martina
Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 163.
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