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Carpholite

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Formula:
Mn
2+
 
Al
 
2
(Si
 
2
O
 
6
)(OH)
 
4
System:OrthorhombicColour:Yellow
Lustre:SilkyHardness:5 - 5½
Member of:Carpholite Group

Classification of Carpholite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:8/F.03-30
Nickel-Strunz 10th (pending) edition ID:9.DB.05

9 : SILICATES (Germanates)
D : Inosilicates
B : Inosilicates with 2-periodic single chains, Si2O6; Pyroxene-related minerals
Dana 8th edition ID:65.1.5.1

65 : INOSILICATES Single-Width,Unbranched Chains,(W=1)
1 : Single-Width Unbranched Chains, W=1 with chains P=2
Hey's CIM Ref.:16.16.5

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

Type Locality:Horní Slavkov (Schlaggenwald), Karlovy Vary Region, Bohemia (Böhmen; Boehmen), Czech Republic
Year of Discovery:1817

Physical Properties of Carpholite

Lustre: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
Maximum Birefringence:δ = 0.020

Chart 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:
Mn
2+
 
Al
 
2
(Si
 
2
O
 
6
)(OH)
 
4
Simplified for copy/paste:Mn2+Al2(Si2O6)(OH)4
Essential elements:Al, H, Mn, O, Si
All elements listed in formula:Al, H, Mn, O, Si
Common Impurities:Ti,Fe,V,Zn,Mg,Ca,Na,K

Relationship of Carpholite to other Species

Series:Forms a series with Ferrocarpholite (see here)
Member of:Carpholite Group
Other Members of Group:

- +
Ferrocarpholite
(Fe
2+
 
,Mg)Al
 
2
(Si
 
2
O
 
6
)(OH)
 
4
Magnesiocarpholite
(Mg,Fe
2+
 
)Al
 
2
(Si
 
2
O
 
6
)(OH)
 
4
Potassiccarpholite
(K,☐)(Li,Mn
2+
 
)
 
2
Al
 
4
(Si
 
2
O
 
6
)
 
2
(OH,F)
 
8
Vanadiocarpholite
Mn
2+
 
V
3+
 
Al(Si
 
2
O
 
6
)(OH)
 
4
Related Minerals - Nickel-Strunz Grouping):

- +
9.DB.05Balipholite
BaLiMg
 
2
Al
 
3
(Si
 
2
O
 
6
)
 
2
(OH)
 
4
9.DB.05Ferrocarpholite
(Fe
2+
 
,Mg)Al
 
2
(Si
 
2
O
 
6
)(OH)
 
4
9.DB.05Magnesiocarpholite
(Mg,Fe
2+
 
)Al
 
2
(Si
 
2
O
 
6
)(OH)
 
4
9.DB.05Potassiccarpholite
(K,☐)(Li,Mn
2+
 
)
 
2
Al
 
4
(Si
 
2
O
 
6
)
 
2
(OH,F)
 
8
9.DB.05Vanadiocarpholite
Mn
2+
 
V
3+
 
Al(Si
 
2
O
 
6
)(OH)
 
4
9.DB.10Lorenzenite
Na
 
2
Ti
 
2
(Si
 
2
O
 
6
)O
 
3
9.DB.15Lintisite
LiNa
 
3
Ti
 
2
(Si
 
2
O
 
6
)
 
2
O
 
2
· 2H
 
2
O
9.DB.15Punkaruaivite
LiTi
 
2
(HSi
 
4
O
 
12
)(OH)
 
2
· H
 
2
O
9.DB.17Eliseevite
LiNa
 
1.5
Ti
 
2
(H
 
1.5
Si
 
4
O
 
12
)O
 
2
· 2H
 
2
O
9.DB.20Kukisvumite
Na
 
6
ZnTi
 
4
(Si
 
8
O
 
24
)O
 
4
· 4H
 
2
O
9.DB.20Manganokukisvumite
Na
 
6
MnTi
 
4
(Si
 
8
O
 
24
)O
 
4
· 4H
 
2
O
9.DB.25Vinogradovite
(Na,Ca,K)
 
4
Ti
 
4
AlSi
 
6
O
 
23
(OH) · 2H
 
2
O
9.DB.25Paravinogradovite
Na
 
1-2
(Ti,Fe
3+
 
)
 
4
(Si
 
2
O
 
6
)
 
2
(AlSi
 
3
O
 
10
)(OH)
 
4
· H
 
2
O
9.DB.30Nchwaningite
Mn
2+
2
(SiO
 
3
)(OH)
 
2
· H
 
2
O
9.DB.35Plancheite
Cu
 
8
(Si
 
8
O
 
22
)(OH)
 
4
· H
 
2
O
9.DB.40Shattuckite
Cu
 
5
(Si
 
2
O
 
6
)
 
2
(OH)
 
2
9.DB.40UM2005-31-SiO:CuH
Cu
 
11
(SiO
 
4
)(OH)
 
18
· 9H
 
2
O ?
9.DB.45Aerinite
(Ca
 
5.1
Na
 
0.5
)(Fe
3+
 
,Al,Fe
2+
 
,Mg)
 
4
(Al,Mg)
 
6
[HSi
 
12
O
 
36
(OH)
 
12
][(CO
 
3
)
 
1.2
(H
 
2
O)
 
12
]
9.DB.50Capranicaite
KCaNaAl
 
4
B
 
4
Si
 
2
O
 
18
Related Minerals - Hey's Index Grouping:

- +
16.16.1Kanonaite
Mn
3+
 
Al(SiO
 
4
)O
16.16.2Spessartine
Mn
2+
3
Al
 
2
(SiO
 
4
)
 
3
16.16.3Davreuxite
MnAl
 
6
Si
 
4
O
 
17
(OH)
 
2
16.16.4Sursassite
Mn
2+
2
Al
 
3
(Si
 
2
O
 
7
)(SiO
 
4
)(OH)
 
3
16.16.6Kellyite
Mn
2+
2
Al(AlSiO
 
5
)(OH)
 
4
16.16.7Pennantite
Mn
2+
5
Al(AlSi
 
3
O
 
10
)(OH)
 
8
16.16.8Akatoreite
(Mn
2+
 
,Fe
2+
 
)
 
9
Al
 
2
(HSi
 
4
O
 
13
)
 
2
(OH)
 
6
16.16.9Ganophyllite
(K,Na,Ca)
 
2
Mn
 
8
(Si,Al)
 
12
(O,OH)
 
32
· 8H
 
2
O
16.16.10Mangano-ferri-eckermannite
[Na][Na
 
2
][Mn
2+
4
(Fe
3+
 
)]Si
 
8
O
 
22
(OH)
 
2
16.16.11Masutomilite
(K,Rb)(Li,Mn
3+
 
,Al)
 
3
(AlSi
 
3
O
 
10
)(F,OH)
 
2
16.16.13Howieite
Na(Fe,Mn)
 
10
(Fe,Al)
 
2
Si
 
12
O
 
31
(OH)
 
13
16.16.14Eggletonite
(Na,K,Ca)
 
2
(Mn,Fe)
 
8
(Si,Al)
 
12
O
 
29
(OH)
 
7
· 11H
 
2
O
16.16.15Bannisterite
Ca
 
0.5
(K,Na)
 
0.5
(Mn,Fe,Zn)
 
10
(Si,Al)
 
16
O
 
38
(OH)
 
8
· 5.5H
 
2
O
16.16.16Taneyamalite
(Na,Ca)(Mn,Mg,Fe)
 
12
Si
 
12
(O,OH)
 
44
16.16.17Zussmanite
K(Fe,Mg,Mn)
 
13
(Si,Al)
 
18
O
 
42
(OH)
 
14
16.16.18Coombsite
K(Mn,Fe,Mg)
 
13
(Si,Al)
 
18
O
 
42
(OH)
 
14
16.16.19Henritermierite
Ca
 
3
(Mn
3+
 
,Al)
 
2
(SiO
 
4
)
 
2
(OH)
 
4
16.16.20Macfallite
Ca
 
2
(Mn
3+
 
,Al)
 
3
(Si
 
2
O
 
7
)(SiO
 
4
)(OH)
 
3
16.16.21Ottrélite
(Mn
2+
 
,Fe
2+
 
,Mg)Al
 
2
(SiO
 
4
)O(OH)
 
2
16.16.22Piemontite
{Ca
 
2
}{Al
 
2
Mn
3+
 
}(Si
 
2
O
 
7
)(SiO
 
4
)O(OH)
16.16.23Okhotskite
Ca
 
2
(Mn
2+
 
,Mg)(Mn
3+
 
,Al,Fe
3+
 
)
 
2
(Si
 
2
O
 
7
)(SiO
 
4
)(OH)
 
2
· H
 
2
O
16.16.24Pumpellyite-(Mn2+)
Ca
 
2
(Mn
2+
 
,Mg)(Al,Mn
3+
 
,Fe
3+
 
)
 
2
(Si
 
2
O
 
7
)(SiO
 
4
)(OH)
 
2
· H
 
2
O
16.16.25Piemontite-(Sr)
{CaSr}{Al
 
2
Mn
3+
 
}(Si
 
2
O
 
7
)(SiO
 
4
)O(OH)

Other Names for Carpholite

Other Languages:
German:Karpholith
Strohstein
Russian:Карфолит
Simplified Chinese:纤锰柱石
Traditional Chinese:纖錳柱石

Other Information

Health Warning: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

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  • Look for Carpholite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Carpholite details from Handbook of Mineralogy (PDF)
  • Mineral Dealers:
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  • Specimens:The following Carpholite specimens are currently listed for sale on minfind.com.

    Localities for Carpholite

    The 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. ? 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
    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
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