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5 - 5½
Crystal System:
The name is given to the Greek words for "straw" and "stone", because of the color.
Carpholite-Ferrocarpholite Series.

Structurally related to magbasite.
Pale varieties are visually similar to davreuxite.

Hide all sections | Show all sections

Classification of CarpholiteHide

Approved, 'Grandfathered' (first described prior to 1959)

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

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

16 : Silicates Containing Aluminum and other Metals
16 : Aluminosilicates of Mn

Physical Properties of CarpholiteHide

5 - 5½ on Mohs scale

Optical Data of CarpholiteHide

Biaxial (-)
RI values:
nα = 1.610 nβ = 1.628 nγ = 1.630
Max Birefringence:
δ = 0.020
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
relatively strong

Chemical Properties of CarpholiteHide

IMA Formula:
Common Impurities:

Crystallography of CarpholiteHide

Crystal System:
Cell Parameters:
a = 13.83 Å, b = 20.31 Å, c = 5.13 Å
a:b:c = 0.681 : 1 : 0.253
Unit Cell V:
1,440.95 ų (Calculated from Unit Cell)

Type Occurrence of CarpholiteHide

Other Language Names for CarpholiteHide

Simplified Chinese:纤锰柱石
Traditional Chinese:纖錳柱石

Relationship of Carpholite to other SpeciesHide

Other Members of this group:
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:

Common AssociatesHide

Associated Minerals Based on Photo Data:
Fluorite12 photos of Carpholite associated with Fluorite on
Dickite2 photos of Carpholite associated with Dickite on
Sursassite2 photos of Carpholite associated with Sursassite on
Palenzonaite2 photos of Carpholite associated with Palenzonaite on
Smoky Quartz1 photo of Carpholite associated with Smoky Quartz on
Jasper1 photo of Carpholite associated with Jasper on
Quartz1 photo of Carpholite associated with Quartz on

Related Minerals - Nickel-Strunz GroupingHide

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.50CapranicaiteKCaNaAl4B4Si2O18Mon. 2/m : P21/m

Related Minerals - Dana Grouping (8th Ed.)Hide,Mg)Al2(Si2O6)(OH)4Orth. mmm (2/m 2/m 2/m) : Ccca,Fe2+)Al2(Si2O6)(OH)4Orth.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

16.16.1KanonaiteMn3+Al(SiO4)OOrth. mmm (2/m 2/m 2/m) : Pnnm
16.16.2SpessartineMn2+3Al2(SiO4)3Iso. m3m (4/m 3 2/m) : Ia3d
16.16.4SursassiteMn2+2Al3(SiO4)(Si2O7)(OH)3Mon. 2/m : P21/m
16.16.9Ganophyllite(K,Na,Ca)2Mn8(Si,Al)12(O,OH)32 · 8H2OMon.
16.16.14Eggletonite(Na,K,Ca)2(Mn,Fe)8(Si,Al)12O29(OH)7 · 11H2OMon.
16.16.15Bannisterite(Ca,K,Na)(Mn2+,Fe2+)10(Si,Al)16O38(OH)8 · nH2OMon. 2/m : B2/b
16.16.17ZussmaniteK(Fe,Mg,Mn)13(Si,Al)18O42(OH)14Trig. 3 : R3
16.16.19HenritermieriteCa3(Mn3+,Al)2(SiO4)2(OH)4Tet. 4/mmm (4/m 2/m 2/m) : I41/acd
16.16.22Piemontite{Ca2}{Al2Mn3+}(Si2O7)(SiO4)O(OH)Mon. 2/m : P21/m
16.16.23OkhotskiteCa2(Mn,Mg)(Mn3+,Al,Fe3+)2(Si2O7)(SiO4)(OH)2 · H2OMon.
16.16.24Pumpellyite-(Mn2+)Ca2Mn2+Al2(Si2O7)(SiO4)(OH)2 · H2OMon.

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 CarpholiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Kingsbury, A.W.G. and Hartley, J. (1957) Carpholite from Cumberland and Cornwall. Mineralogical Magazine, vol. 31, n° 237, 501-502.
Naumova, I.S., Pobedimskaya, E.A., Belov, N.V. (1974) Crystal structure of carpholite MnAl2(Si2O6)(OH)4. Kristallografiya 19, 1155-1160 (in Russian).
Lindemann, W., Wögerbauer, R., and Berger, P. (1979) Die Kristallstruktur von Karpholith (Mn0.97Mg0.08FeII0.07)(Al1.90FeIII0.01)Si2O6(OH)4. Neues Jahrbuch für Mineralogie, Monatshefte 1979, 282-287 (in German).
Löffler, H. K. & Schwab, M. (1981): Die Karpholite der Wippraer Einheit des Unterharzes. Zeitschrift für Geologische Wissenschaften 9, 519-539 (in German).
Ghose, S., Sen Gupta, P.K., Boggs, R.C., and Schlemper, E.O. (1989) Crystal chemistry of a nonstoichiometric carpholite, Kx(Mn2-xLix)Al4Si4O12(OH)4F4: A chain silicate related to pyroxenes. American Mineralogist 74, 1084-1090.
Theye, T., Seidel, E., and Vidal, O. (1992) Carpholite, sudoite, chloritoid in low-grade high-pressure metapelites from Crete and the Peloponnese, Greece. European Journal of Mineralogy: 4: 487-507.
Theye, T. (2000) New experimental high pressure data on chloritoid and carpholite. Beiheft No. 1, European Journal of Mineralogy: 12: 212.
Basso, R. and Carbone, C. (2010) Relationships between crystal data and crystal chemistry of carpholite-group minerals. Periodico di Mineralogia 79, 91-98.

Internet Links for CarpholiteHide

Localities for CarpholiteHide

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.
  • Liège Province
    • Stavelot Massif
Hatert, F., Blondieau, M., Puccio, S., Baijot, M. et Gustine, C. (2014) - Le gisement de manganèse de la vallée de la Lienne, Belgique. Le Règne Minéral, 117, pp. 5-28, editions du Piat.
        • Stoumont
Handbook of Mineralogy
Michel Blondiau collection
        • Werbomont
Michel Blondieau collection
  • Luxembourg Province
    • Manhay
Hatert, F., Deliens, M., Fransolet, A.-M. & van der Meersche, E. (2002): Les minéraux de Belgique. 2ème édition, Muséum des Sciences Naturelles, Bruxelles, Ed., 304 p.
    • Stavelot Massif
      • Vielsalm
Theye, Th., Fransolet A.M. (1994): "Virtually Pure Ottrelite from the Region of Ottré, Belgium", European Journal of Mineralogy, 1994, 6, 547-555
  • Jilin Province (Manchuria; Dongbei Region)
    • Yanbian Chaoxianzu Autonomous Prefecture
      • Yanji Co.
Wu Hanquan, Tang kedong, and Li Cunyou (2003): Geological Bulletin of China 22(9), 651-654.
  • Qinghai Province
    • Haibei Autonomous Prefecture
Song, S., Zhang, L., Niu, Y., Wei, C., Liou, J.G., and Shu, G. (2007): Journal of Metamorphic Geology 25(4), 495
Czech Republic (TL)
  • Bohemia (Böhmen; Boehmen)
    • Karlovy Vary Region
Letztes Min. System (1817) 10, 43
        • Krásno (Schönfeld)
Petr Pauliš (2000): Nejzajímavější mineralogická naleziště Čech, Kuttna, Kutná Hora
  • Auvergne-Rhône-Alpes
    • Rhône
      • Beaujeu
        • Les Ardillats
Favreau G., Legris J-R., Dardillac M. (1996), La Verrière (Rhône): Histoire et Minéralogie, Le Cahier des Micromonteurs, n°3, pp:3-28
  • Saxony-Anhalt
    • Harz
Theye, T. & Siedel, H. (1993): Chloritoid, carpholite, and sudoite in very low-​grade metamorphic rocks of the Wippra Metamorphic Zone (Harz, Germany). Neues Jahrbuch für Mineralogie, Monatshefte 1993, 73-96.
        • Mansfeld
Siemroth, J. (1990): Karpholith aus der Wippraer Zone des Harzes. Lapis, 15 (7-8), 59-60.
Siemroth, J. (1990): Karpholith aus der Wippraer Zone des Harzes. Lapis, 15 (7-8), 59-60.
  • Crete Department (Kriti)
Eur. J. Mineral., 4: 487-507
  • Liguria
    • Genova Province
      • Ne
        • Graveglia Valley
XRD analysis at Euratom of Ispra (Varese)
[MinRec 32:356]
          • Reppia
Rivista Mineralogica Italiana, (4), 131
  • Piedmont
    • Verbano-Cusio-Ossola Province
      • Ossola Valley
        • Ornavasso
Mattioli, V. (1987): Minerali ossolani, 10 anni dopo: errata corrige e novità. Rivista Mineralogica Italiana, 4/1987, 195-200
  • Honshu Island
    • Kinki region
      • Hyogo Prefecture
        • Taka-gun
Yoshimura & Aoki (1966) Koubutsugaku Zasshi, 8, 43-48.
  • Karagandy Province (Qaragandy Oblysy; Karaganda Oblast'); Evseev, A. A. (1995) Kazaknstan and Middle Asia. A brief Mineralogical Guide. World of Stone 8:24-30
  • Suceava Co.
    • Suceava district
      • Iacobeni (Jakobeny; Jacobeny; Jakabfalva)
  • Andalusia
    • Granada
      • Otívar
Eur. J. Mineral. , 1989, 1, pp. 139-142..
  • Catalonia
    • Tarragona
      • Baix Camp
        • Villanova d'Escornalbou
          • Escornalbou Castle
Aufschluss 1975(6), 236-237
  • Grischun (Grisons; Graubünden)
    • Engadin
      • Martina
Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 163.
  • England
    • Cornwall
      • Callington District
        • Calstock
          • Gunnislake
            • Clitters United Mines
Kingsbury, A.W.G. and Hartley, J. (1957) Carpholite from Cumberland and Cornwall. Mineralogical Magazine, vol. 31, n° 237, 502.; Ryback, G., Hart, A.D., and Stanley, C.J. (2001) Journal of the Russell Society 7(2).
        • Stoke Climsland
          • Callington
            • Kit Hill United Mines (incl. Kit Hill Great Consols)
Kingsbury, A.W.G. and Hartley, J. (1957) Carpholite from Cumberland and Cornwall. Mineralogical Magazine, vol. 31, n° 237, 502.; Ryback, G., Hart, A.D., and Stanley, C.J. (2001) Journal of the Russell Society 7(2).
      • St Austell District
        • St Stephen-in-Brannel
          • Foxhole
Kingsbury, A.W.G. and Hartley, J. (1957) Carpholite from Cumberland and Cornwall. Mineralogical Magazine, vol. 31, n° 237, 502.; [Specimen in the Natural History Museum, London]
    • Cumbria
      • Caldbeck Fells
        • Carrock Fell
BMS Database
Kingsbury, A.W.G. and Hartley, J. (1957) Carpholite from Cumberland and Cornwall. Mineralogical Magazine, vol. 31, n° 237, 502.; [Specimen in the Natural History Museum, London]
  • Idaho
    • Boise Co.
Ream, Lanny R. 2004. Idaho Minerals, 2nd edition, Revised and Updated
[MinRec 19:332]
    • Custer Co.
R&M 70:4 pp 242-263
    • Elmore Co.
      • Glens Peak area
van Laer, The Sawtooth batholith,
R&M 70:4 pp 242-263
Rocks & Min. 70:246
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