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Parsettensite

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Foote Lithium Co. Mine (Foote Mine), Kings Mountain District, Cleveland Co., North Carolina, USA
© Stephan Wolfsried

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Formula:
K
 
1.2
Mn
 
8
(Si,Al)
 
12
O
 
26
(OH)
 
10
System:MonoclinicColour:Yellowish brown to ...
Lustre:Vitreous, Metallic, Sub-MetallicHardness:1½
Name:Named after its type locality.
This page provides mineralogical data about Parsettensite.

Classification of Parsettensite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:8/H.17-50
Nickel-Strunz 10th (pending) edition ID:9.EG.40

9 : SILICATES (Germanates)
E : Phyllosilicates
G : Double nets with 6-membered and larger rings
Dana 8th edition ID:74.1.3.1

74 : PHYLLOSILICATES Modulated Layers
1 : Modulated Layers with joined islands
Hey's CIM Ref.:14.17.9

14 : Silicates not Containing Aluminum
17 : Silicates of Mn
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Type Occurrence of Parsettensite

Type Locality:Parsettens Alp, Tinizong (Tinzen), Oberhalbstein (Surses; Sursass), Albula Valley, Grischun (Grisons; Graubünden), Switzerland
Year of Discovery:1923
Geological Setting of type material:metamorphosed manganese deposit

Physical Properties of Parsettensite

Lustre:Vitreous, Metallic, Sub-Metallic
Diaphaneity (Transparency):Transparent
Comment:metallic appearance due to strong colour and strong reflection on cleavages
Colour:Yellowish brown to honey-yellow, light brown, copper-red
Streak:Brownish yellow
Hardness (Mohs):1½
Tenacity:Flexible
Cleavage:Perfect
[001] Perfect
Density (measured):2.59 g/cm3
Density (calculated):2.76 g/cm3

Crystallography of Parsettensite

Crystal System:Monoclinic
Class (H-M):2/m - Prismatic
Space Group:B2/m {B1 1 2/m} {C2/m} {C1 2/m 1}
Cell Parameters:a = 39.10Å, b = 22.84Å, c = 17.95Å
α = 90°, β = 135.60°, γ = 90°
Ratio:a:b:c = 1.712 : 1 : 0.786
Unit Cell Volume:V 11215.7 ų
Z:12
Morphology:platy crystals, lamellar, massive
Twinning:Invariably twinned.
Comment:C2/m setting; pseudo-orthorhombic, pseudo-hexagonal

Optical Data of Parsettensite

Type:Biaxial (+/-)
RI values: nα = 1.546 nβ = 1.576 nγ = 1.576
Maximum Birefringence:δ = 0.030

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Low
Dispersion:none
Pleochroism:Visible
Comments:colourless - pale yellow, greenish yellow

Chemical Properties of Parsettensite

Formula:
K
 
1.2
Mn
 
8
(Si,Al)
 
12
O
 
26
(OH)
 
10
Essential elements:H, K, Mn, O, Si
All elements listed in formula:Al, H, K, Mn, O, Si
Common Impurities:Ti,B,Fe,V,Mg,Ba,Cl,C,P

Relationship of Parsettensite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
9.EG.05Cymrite
BaAl
 
2
Si
 
2
(O,OH)
 
8
 · H
 
2
O
9.EG.10Naujakasite
(Na,K)
 
6
(Fe
2+
 
,Mn
2+
 
,Ca)(Al,Fe)
 
4
Si
 
8
O
 
26
9.EG.10Manganonaujakasite
Na
 
6
(Mn
2+
 
,Fe
2+
 
)Al
 
4
Si
 
8
O
 
26
9.EG.15Dmisteinbergite
CaAl
 
2
Si
 
2
O
 
8
9.EG.20Kampfite
Ba
 
12
(Si
 
11
Al
 
5
)O
 
31
(CO
 
3
)
 
8
Cl
 
5
9.EG.25Strätlingite
Ca
 
2
Al
 
2
SiO
 
7
 · 8H
 
2
O
9.EG.25Vertumnite
Ca
 
4
Al
 
4
Si
 
4
O
 
6
(OH)
 
24
 · 3H
 
2
O
9.EG.30Eggletonite
(Na,K,Ca)
 
2
(Mn,Fe)
 
8
(Si,Al)
 
12
O
 
29
(OH)
 
7
 · 11H
 
2
O
9.EG.30Ganophyllite
(K,Na,Ca)
 
2
Mn
 
8
(Si,Al)
 
12
(O,OH)
 
32
 · 8H
 
2
O
9.EG.30Tamaite
(Ca,K,Ba,Na)
 
3-4
Mn
 
24
(Si,Al)
 
40
(O,OH)
 
112
 · 21H
 
2
O
9.EG.35Coombsite
K(Mn,Fe,Mg)
 
13
(Si,Al)
 
18
O
 
42
(OH)
 
14
9.EG.35Zussmanite
K(Fe,Mg,Mn)
 
13
(Si,Al)
 
18
O
 
42
(OH)
 
14
9.EG.40Franklinphilite
(K,Na)
 
4
(Mn,Zn,Mg,Fe)
 
48
(Si,Al)
 
72
(O,OH)
 
216
 · 6H
 
2
O
9.EG.40Lennilenapeite
K
 
6-7
(Mg,Mn,Fe,Zn)
 
48
(Si,Al)
 
72
(O,OH)
 
216
 · 16H
 
2
O
9.EG.40Stilpnomelane
(K,Ca,Na)(Fe
2+
 
,Mg,Al,Fe
3+
 
)
 
8
(Si,Al)
 
12
(O,OH)
 
36
 · nH
 
2
O
9.EG.45Latiumite
K
 
2
Ca
 
6
(Si,Al)
 
11
O
 
25
(SO
 
4
,CO
 
3
)
9.EG.45Tuscanite
(K(Ca,Na)
 
6
(Si,Al)
 
10
O
 
22
[SO
 
4
,CO
 
3
,(OH)
 
2
] · H
 
2
O
9.EG.50Jagoite
(Pb,Ca)
 
3
FeSi
 
3
O
 
10
(Cl,OH)
9.EG.55Wickenburgite
CaPb
 
3
Al
 
2
Si
 
10
O
 
24
(OH)
 
6
9.EG.60Hyttsjöite
Pb
 
18
Ba
 
2
Ca
 
5
Mn
2+
2
Fe
3+
2
Si
 
30
O
 
90
Cl · 6H
 
2
O
9.EG.65Armbrusterite
K
 
5
Na
 
7
Mn
 
15
[(Si
 
9
O
 
22
)
 
4
](OH)
 
10
 · 4H
 
2
O
9.EG.70Britvinite
[Pb
 
7
(OH)
 
3
F(BO
 
3
)
 
2
(CO
 
3
)][Mg
 
4.5
(OH)
 
3
(Si
 
5
O
 
14
)]
9.EG.75Bannisterite
Ca
 
0.5
(K,Na)
 
0.5
(Mn,Fe,Zn)
 
10
(Si,Al)
 
16
O
 
38
(OH)
 
8
 · 5.5H
 
2
O
Related Minerals - Hey's Index Grouping:

- +
14.17.1Rhodonite
MnSiO
 
3
14.17.2Tephroite
Mn
2+
2
SiO
 
4
14.17.3Braunite
Mn
2+
 
Mn
3+
6
(SiO
 
4
)O
 
8
14.17.4Alleghanyite
Mn
2+
5
(SiO
 
4
)
 
2
(OH)
 
2
14.17.5Ribbeite
(Mn
2+
 
,Mg)
 
5
(SiO
 
4
)
 
2
(OH)
 
2
14.17.6Leucophoenicite
Mn
2+
7
(SiO
 
4
)
 
3
(OH)
 
2
14.17.7Jerrygibbsite
Mn
2+
9
(SiO
 
4
)
 
4
(OH)
 
2
14.17.8Bementite
Mn
 
5
Si
 
4
O
 
10
(OH)
 
6
14.17.10Yofortierite
Mn
 
5
Si
 
8
O
 
20
(OH)
 
2
 · 8-9H
 
2
O

Other Names for Parsettensite

Synonyms:
Errite
Other Languages:
German:Parsettensit
Russian:Парсеттенсит
Spanish:Parsettensita

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 Parsettensite

Reference List:

- +
Jakob, J. (1923): Vier Mangansilikate aus dem Val d'Err (Kt. Graubünden). Schweiz. Mineral. Petrograph. Mitt., 3, 227-237.

American Mineralogist (1925): 10: 107. [Abs.]

Geiger, T. (1948) Manganerze in den Radiolariten Graubündens. Beitrage Geol. Schweiz., 27, 37-42 (in German).

Cortesogno, L., Lucchetti, G. and Penco A. M. (1979): Le mineralizzazioni a manganese nei diaspri delle ofioliti liguri: mineralogia e genesi. Rendiconti Soc. Ital. Mineral. Petrol. 35, 151-197. (in Italian)

Eggleton, R. A. and Guggenheim, S. (1994): The use of electron optical methods to determine the crystal structure of a modulated phyllosilicate: parsettensite. Am. Mineral. 79, 426-437.

Guggenheim, S. and Eggleton, R. A. (1994): A comparison of the structures and geometric stabilities of stilpnomelane and parsettensite: a distance least-squares (DLS) study. Am. Mineral. 79, 438-442.

Brusnitsyn, A. I.; Starikova, E. V.; Krivovichev, S. V.; Chukanov, N. V. (1999): Ba-bearing parsettensite from Kyzil-Tash Mn ore deposit (the South Urals). Zapiski Vserossiiskogo Mineralogicheskogo Obshchestva 128, 79-90 (in Russian).

Internet Links for Parsettensite

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Parsettensite details from Handbook of Mineralogy (PDF)
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    • Localities for Parsettensite

    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.
    Hide Locality List
    (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.
    China
     
    • Hubei Province
    		Jingfang Jin and Hui Jin (2000): Journal of Gems and Gemmology 2(2), 36-39
    France
     
    • Midi-Pyrénées
      • Hautes-Pyrénées
    		 Le Règne Minéral 47: 5-21
    Indonesia
     
    • Jawa Island (Java Island)
      • Banten Province
        • Cikotok Gold District
    		CanMin 38: 1125-1136 (2000)
    Italy
     
    • Liguria
      • Genova Province
        • Ne
          • Graveglia Valley
    		Sanero E. (1936); Ricerche chimiche sulla tinzenite e parsettensite della miniera di Cassagna (Liguria). Periodico di Mineralogia - Roma pp. 123-132.
    Cortesogno, L., G. Lucchetti, and AM Penco (1979) Le mineralizzazioni a manganese nei diaspri delle ofioliti liguri: mineralogia e genesi. - Rend. Soc. it. min e Petrol., n. 35, pp. 151-197
            • Reppia
    		Rivista Mineralogica Italiana, (4), 131
      • La Spezia Province
        • Rocchetta Vara
    		Dr. Uwe Kolitsch, personal communication 03-12-2007 (EDS+XRD)
    • Piedmont
      • Cuneo Province
        • Varaita Valley
          • Pontechianale
    		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.
      • Torino Province
        • Chisone Valley
          • Pragelato
    		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.
        • Susa Valley
          • Cesana Torinese
    		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.
    Japan
     
    • Honshu Island
      • Kanto Region
        • Saitama Prefecture
          • Hidaka
    		Collection of NHM, Vienna
      • Kinki Region
        • Shiga Prefecture
          • Takashima City
    		Masutomi Museum specimen (Kyoto)
      • Tohoku Region
        • Iwate Prefecture
          • Noda
    		Watanabe, T. (1959) Mineralogical Journal, 2, 6, 408-421
    • Shikoku Island
      • Kochi Prefecture
        • Outoyo (Ohtoyo)
    		Alfredo Petrov collection
    New Zealand
     
    • South Island
      • Otago
    		No reference listed
    Russia
     
    • Urals Region
      • Southern Urals
        • Bashkortostan (Bashkiria) Republic
          • Sibay
    		Brusnitsyn, A.I. (2006): Geology of Ore Deposits 48(3), 193-214.
    Brusnitsyn, A. I.; Starikova, E. V.; Krivovichev, S. V.; Chukanov, N. V. (1999): Ba-bearing parsettensite from Kyzil-Tash Mn ore deposit (the South Urals). Zapiski Vserossiiskogo Mineralogicheskogo Obshchestva 128, 79-90 (in Russian).
    South Africa
     
    • Northern Cape Province
      • Kalahari manganese fields
        • Hotazel
    		[Von Bezing, K. L. et al. (1991) - The Kalahari manganese field : an update, Mineralogical Record, 22 (3), 279-302]
    Switzerland
     
    • Grischun (Grisons; Graubünden)
      • Albula Valley
        • Oberhalbstein (Surses; Sursass)
          • Tinizong (Tinzen)
    		[MinRec 32:211]
    Schweiz.Min.Petr.Mitt.(1923) 3, 227-237
      • Engadin
        • Piz Corvatsch
    		Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 298.
      • Hinterrhein Valley
        • Ferrera Valley
          • Ausserferrera
    		Amer.Min.(1996) 81, 1270-1276
        • Rheinwald
          • Splügen
    		Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 298.
      • Plessur Valley
        • Langwies
          • Fondei Valley
    		Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 298.
    USA
     
    • North Carolina
      • Cleveland Co.
        • Kings Mountain District
    		Mineralogical Record (1994) 25:131
    Mineral and/or Locality
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    Copyright © Jolyon Ralph and Ida Chau 1993-2011. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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