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Carpholite

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Formula:
Mn2+Al2(Si2O6)(OH)4
System:
Orthorhombic
Colour:
Yellow
Lustre:
Silky
Hardness:
5 - 5½

Classification of Carpholite

Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
9.DB.05

9 : SILICATES (Germanates)
D : Inosilicates
B : Inosilicates with 2-periodic single chains, Si2O6; Pyroxene-related minerals
65.1.5.1

65 : INOSILICATES Single-Width,Unbranched Chains,(W=1)
1 : Single-Width Unbranched Chains, W=1 with chains P=2
16.16.5

16 : Silicates Containing Aluminum and other Metals
16 : Aluminosilicates of Mn
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First Recorded Occurrence of Carpholite

Year of Discovery:
1817

Physical Properties of Carpholite

Silky
Colour:
Yellow
Hardness (Mohs):
5 - 5½

Crystallography of Carpholite

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

Optical Data of Carpholite

Type:
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:
Moderate
Dispersion:
relatively strong

Chemical Properties of Carpholite

Formula:
Mn2+Al2(Si2O6)(OH)4
Essential elements:
All elements listed in formula:
Common Impurities:
Ti,Fe,V,Zn,Mg,Ca,Na,K

Relationship of Carpholite to other Species

Series:
Forms a series with Ferrocarpholite (see here)
Other Members of Group:
Ferrocarpholite(Fe2+,Mg)Al2(Si2O6)(OH)4
Magnesiocarpholite(Mg,Fe2+)Al2(Si2O6)(OH)4
Potassiccarpholite(K,☐)(Li,Mn2+)2Al4(Si2O6)2(OH,F)8
VanadiocarpholiteMn2+V3+Al(Si2O6)(OH)4
9.DB.05BalipholiteBaLiMg2Al3(Si2O6)2(OH)4
9.DB.05Ferrocarpholite(Fe2+,Mg)Al2(Si2O6)(OH)4
9.DB.05Magnesiocarpholite(Mg,Fe2+)Al2(Si2O6)(OH)4
9.DB.05Potassiccarpholite(K,☐)(Li,Mn2+)2Al4(Si2O6)2(OH,F)8
9.DB.05VanadiocarpholiteMn2+V3+Al(Si2O6)(OH)4
9.DB.10LorenzeniteNa2Ti2(Si2O6)O3
9.DB.15LintisiteLiNa3Ti2(Si2O6)2O2 · 2H2O
9.DB.15PunkaruaiviteLiTi2(HSi4O12)(OH)2 · H2O
9.DB.17EliseeviteLiNa1.5Ti2(H1.5Si4O12)O2 · 2H2O
9.DB.20KukisvumiteNa6ZnTi4(Si8O24)O4 · 4H2O
9.DB.20ManganokukisvumiteNa6MnTi4(Si8O24)O4 · 4H2O
9.DB.25Vinogradovite(Na,Ca,K)4Ti4AlSi6O23(OH) · 2H2O
9.DB.25ParavinogradoviteNa1-2(Ti,Fe3+)4(Si2O6)2(AlSi3O10)(OH)4 · H2O
9.DB.30NchwaningiteMn22+(SiO3)(OH)2 · H2O
9.DB.35PlancheiteCu8(Si8O22)(OH)4 · H2O
9.DB.40ShattuckiteCu5(Si2O6)2(OH)2
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]
9.DB.50CapranicaiteKCaNaAl4B4Si2O18
16.16.1KanonaiteMn3+Al(SiO4)O
16.16.2SpessartineMn32+Al2(SiO4)3
16.16.3DavreuxiteMnAl6Si4O17(OH)2
16.16.4SursassiteMn22+Al3(Si2O7)(SiO4)(OH)3
16.16.6KellyiteMn22+Al(AlSiO5)(OH)4
16.16.7PennantiteMn52+Al(AlSi3O10)(OH)8
16.16.8Akatoreite(Mn2+,Fe2+)9Al2(HSi4O13)2(OH)6
16.16.9Ganophyllite(K,Na,Ca)2Mn8(Si,Al)12(O,OH)32 · 8H2O
16.16.10Mangano-ferri-eckermannite[Na][Na2][Mn42+(Fe3+)]Si8O22(OH)2
16.16.11Masutomilite(K,Rb)(Li,Mn3+,Al)3(AlSi3O10)(F,OH)2
16.16.13HowieiteNa(Fe,Mn)10(Fe,Al)2Si12O31(OH)13
16.16.14Eggletonite(Na,K,Ca)2(Mn,Fe)8(Si,Al)12O29(OH)7 · 11H2O
16.16.15BannisteriteCa0.5(K,Na)0.5(Mn,Fe,Zn)10(Si,Al)16O38(OH)8 · 5.5H2O
16.16.16Taneyamalite(Na,Ca)(Mn,Mg,Fe)12Si12(O,OH)44
16.16.17ZussmaniteK(Fe,Mg,Mn)13(Si,Al)18O42(OH)14
16.16.18CoombsiteK(Mn,Fe,Mg)13(Si,Al)18O42(OH)14
16.16.19HenritermieriteCa3(Mn3+,Al)2(SiO4)2(OH)4
16.16.20MacfalliteCa2(Mn3+,Al)3(Si2O7)(SiO4)(OH)3
16.16.21Ottrélite(Mn2+,Fe2+,Mg)Al2(SiO4)O(OH)2
16.16.22Piemontite{Ca2}{Al2Mn3+}(Si2O7)(SiO4)O(OH)
16.16.23OkhotskiteCa2(Mn2+,Mg)(Mn3+,Al,Fe3+)2(Si2O7)(SiO4)(OH)2 · H2O
16.16.24Pumpellyite-(Mn2+)Ca2(Mn2+,Mg)(Al,Mn3+,Fe3+)2(Si2O7)(SiO4)(OH)2 · H2O
16.16.25Piemontite-(Sr){CaSr}{Al2Mn3+}(Si2O7)(SiO4)O(OH)

Other Names for Carpholite

Name in Other Languages:
Simplified Chinese:纤锰柱石
Traditional Chinese:纖錳柱石

Other Information

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 Carpholite

Reference List:
Neues Jahrbuch für Mineralogie, Monatshefte (1979): 282-287.

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.

Internet Links for Carpholite

Specimens:
The following Carpholite specimens are currently listed for sale on minfind.com.

Localities for Carpholite

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.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
Belgium
 
  • 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
        • Werbomont
Michel Blondieau collection
  • Luxembourg Province
    • 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
China
 
  • 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
 
  • Bohemia (Böhmen; Boehmen)
    • Karlovy Vary Region
Letztes Min. System (1817) 10, 43
        • Krásno (Schönfeld)
Petr Pauliš (2000): Nejzajímavější mineralogická naleziště Čech, Kuttna, Kutná Hora
France
 
  • 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
Germany
 
  • Saxony-Anhalt
    • Harz
      • Wippra Metamorphic Zone
No reference listed
Greece
 
  • Crete Department (Kriti)
Eur. J. Mineral., 4: 487-507
Italy
 
  • 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
      • Ornavasso
Mattioli, V. (1987): Minerali ossolani, 10 anni dopo: errata corrige e novità. Rivista Mineralogica Italiana, 4/1987, 195-200
Japan
 
  • Honshu Island
    • Kinki region
      • Hyogo Prefecture
        • Taka-gun
Yoshimura & Aoki (1966) Koubutsugaku Zasshi, 8, 43-48.
Kazakhstan
 
  • Karagandy Province (Qaragandy Oblysy; Karaganda Oblast')
http://geo.web.ru/druza/l-Kent.htm; Evseev, A. A. (1995) Kazaknstan and Middle Asia. A brief Mineralogical Guide. World of Stone 8:24-30
Romania
 
  • Suceava Co.
    • Suceava district
      • Iacobeni (Jakobeny; Jacobeny; Jakabfalva)
http://minerals-of-the-carpathians.eu
Spain
 
  • 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
Switzerland
 
  • Grischun (Grisons; Graubünden)
    • Engadin
      • Martina
Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 163.
UK
 
  • England
    • Cornwall
      • Callington District
        • Calstock
          • Gunnislake
            • Clitters United Mines
Kingsbury, A.W.G., and Hartley, J. (1957): Mineralogical Magazine 31, 502; Ryback, G., Hart, A.D., and Stanley, C.J. (2001): Journal of the Russell Society 7(2)
        • Stoke Climsland
          • Kit Hill United Mines (incl. Kit Hill Great Consols)
Kingsbury, A.W.G., and Hartley, J. (1957): Mineralogical Magazine 31, 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
[Specimen in the Natural History Museum, London]
    • Cumbria
      • North and Western Region (Cumberland)
        • Caldbeck Fells
          • Carrock Fell
BMS Database
[Specimen in the Natural History Museum, London]
USA
 
  • 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, mindat.org
R&M 70:4 pp 242-263
Rocks & Min. 70:246
Mineral and/or Locality  
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