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Clinotobermorite

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About ClinotobermoriteHide

Formula:
[Ca4Si6O17 · 2H2O]·(Ca·3H2O)
Hardness:
Crystal System:
Monoclinic
Name:
Redefined in by IMA in 2014, according to new nomenclature for the Tobermorite Group.
Structurally closely related to Tobermorite.
A Ca-poor analogue may exist.
Two natural polytypes are known: Clinotobermorite-2M and Clinotobermorite-1A.


Classification of ClinotobermoriteHide

Approved
Notes:
Renamed by the IMA
Approval History:
Renamed by IMA: 2014
9.DG.10

9 : SILICATES (Germanates)
D : Inosilicates
G : Inosilicates with 3-periodic single and multiple chains
72.3.2.2

72 : PHYLLOSILICATES Two-Dimensional Infinite Sheets with Other Than Six-Membered Rings
3 : Two-Dimensional Infinite Sheets with Other Than Six-Membered Rings with 3-, 4-, or 5-membered rings and 8-membered rings
14.5.24

14 : Silicates not Containing Aluminum
5 : Silicates of Ca

Physical Properties of ClinotobermoriteHide

Hardness:
4½ on Mohs scale

Optical Data of ClinotobermoriteHide

Type:
Biaxial (+/-)
RI values:
nα = 1.575 nβ = 1.580 nγ = 1.585
2V:
Measured: 89° , Calculated: 88°
Max Birefringence:
δ = 0.010
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
very weak

Chemical Properties of ClinotobermoriteHide

Formula:
[Ca4Si6O17 · 2H2O]·(Ca·3H2O)
IMA Formula:
Ca4Si6O17(H2O)2 · (Ca · 3H2O)
Common Impurities:
Ti,B,Al,Fe,Mn,Mg,Na,K,F

Crystallography of ClinotobermoriteHide

Polytype:
Formula:
Crystal System:
Class (H-M)
Space Group:
Space Group Setting:
Cell Parameters:
Ratio:
Unit Cell Volume (calc):
Z:
Clinotobermorite-1AClinotobermorite-2M
  
Triclinic Monoclinic 
  
  
  
a = 11.274 Å, b = 7.344 Å, c = 11.468 Å
α = 99.18°, β = 97.19°, γ = 90.02°
a = 11.276(2) Å, b = 7.343(8) Å, c = 22.642(4) Å
β = 97.28°
a:b:c = 1.535 : 1 : 1.562a:b:c = 1.536 : 1 : 3.083
V 929.78 ų
(Calculated from Unit Cell)
V 1,859.64 ų
(Calculated from Unit Cell)
  

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0002328ClinotobermoriteMerlino S, Bonaccorsi E, Armbruster T (1999) Tobermorites: Their real structure and order-disorder (OD) character American Mineralogist 84 1613-162119990293
0006830ClinotobermoriteMerlino S, Bonaccorsi E, Armbruster T (2000) The real structure of clinotobermorite and tobermorite 9 A: OD character, polytypes, and structural relationships European Journal of Mineralogy 12 411-42920000293
0006831ClinotobermoriteMerlino S, Bonaccorsi E, Armbruster T (2000) The real structure of clinotobermorite and tobermorite 9 A: OD character, polytypes, and structural relationships European Journal of Mineralogy 12 411-42920000293
0006832ClinotobermoriteMerlino S, Bonaccorsi E, Armbruster T (2000) The real structure of clinotobermorite and tobermorite 9 A: OD character, polytypes, and structural relationships European Journal of Mineralogy 12 411-42920000293
0011075ClinotobermoriteHoffmann C, Armbruster T (1997) Clinotobermorite, Ca5(Si3O8(OH))2*4(H2O) - Ca5(Si6O17)*5(H2O), a natural C-S-H(I) type cement mineral: determination of the substructure _cod_database_code 1000046 Zeitschrift fur Kristallographie 212 863-8731997Wessels mine, Kalahari manganese field, South Africa0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
11.25 Å(100)
3.304 Å(51)
3.068 Å(45)
3.034 Å(60)
3.012 Å(37)
2.811 Å(41)
2.794 Å(60)

Type Occurrence of ClinotobermoriteHide

Empirical Formula of Type Material:
(Ca5.29Mg0.02K0.02)5.33(Si5.90Al0.05B0.05)6.00(O16.54OH1.39F0.07)18.00 · 5.1H2O
Chemical Analysis of Type Material:
SiO246.55 %
TiO20.01 %
Al2O30.36 %
B2O30.23 %
Fe2O30.01 %
MnO0.06 %
MgO0.11 %
CaO39.04 %
Na2O0.02 %
K2O0.10 %
H2O13.75 %
F0.18 %
-O=F0.08 %
Total:100.5 %
Reference:
Henmi, C., & Kusachi, I. (1992). Clinotobermorite, Ca5Si6 (O, OH) 18.5 H2O, a new mineral from Fuka, Okayama Prefecture, Japan. Mineralogical Magazine, 56(3), 353-358.

Synonyms of ClinotobermoriteHide

Other Language Names for ClinotobermoriteHide

Relationship of Clinotobermorite to other SpeciesHide

Other Members of this group:
Plombièrite[Ca4Si6O16(OH)2 · 2H2O]·(Ca·5H2O)Orth.
RiversideiteCa5(HSi3O9)2 · 2H2OOrth.
Tobermorite GroupCa4+x(AlySi6-y)O15+2x-y ·5H2O

Common AssociatesHide

Associated Minerals Based on Photo Data:
1 photo of Clinotobermorite associated with Tobermorite[Ca4Si6O17 · 2H2O]·(Ca·3H2O)

Related Minerals - Nickel-Strunz GroupingHide

9.DG.Barrydawsonite-(Y)Na1.5Y0.5CaSi3O8(OH)Mon. 2/m : P21/b
9.DG.05BustamiteCaMn2+(Si2O6)Tric. 1 : P1
9.DG.05FerrobustamiteCaFe2+(Si2O6)Tric.
9.DG.05PectoliteNaCa2Si3O8(OH)Tric. 1 : P1
9.DG.05SeranditeNaMn2+2Si3O8(OH)Tric. 1 : P1
9.DG.05WollastoniteCaSiO3Tric. 1 : P1
9.DG.05Wollastonite-1ACaSiO3Tric. 1 : P1
9.DG.07CascanditeCaScSi3O8(OH)Tric. 1
9.DG.08Plombièrite[Ca4Si6O16(OH)2 · 2H2O]·(Ca·5H2O)Orth.
9.DG.10RiversideiteCa5(HSi3O9)2 · 2H2OOrth.
9.DG.10Tobermorite[Ca4Si6O17 · 2H2O]·(Ca·3H2O)Orth.
9.DG.15FoshagiteCa4(Si3O9)(OH)2Tric.
9.DG.20JenniteCa9(Si3O9)2(OH)8 · 8H2OTric.
9.DG.25ParaumbiteK3Zr2H(Si3O9)2 · nH2OOrth.
9.DG.25UmbiteK2(Zr,Ti)Si3O9 · H2OOrth.
9.DG.30SørenseniteNa4SnBe2Si6O16(OH)4Mon. 2/m : B2/b
9.DG.35XonotliteCa6(Si6O17)(OH)2Mon. 2/m
9.DG.40HillebranditeCa2(SiO3)(OH)2Orth. mmm (2/m 2/m 2/m) : Cmcm
9.DG.45ZoriteNa8(Ti,Nb)5(Si6O17)2(OH,O)5 · 14H2OOrth.
9.DG.45ChivruaiiteCa4(Ti,Nb)5(Si6O17)2(OH,O)5 · 13-14H2OOrth. mmm (2/m 2/m 2/m) : Cmmm
9.DG.50Haineaultite(Na,Ca)5Ca(Ti,Nb)5(Si6O17)2(OH,F)8 · 5H2OOrth. 2 2 2 : C2 2 2
9.DG.55EpididymiteNa2Be2Si6O15 · H2OOrth. mmm (2/m 2/m 2/m) : Pnma
9.DG.60EudidymiteNa2Be2Si6O15 · H2OMon. 2/m : B2/b
9.DG.65ElpiditeNa2ZrSi6O15 · 3H2OOrth.
9.DG.70Fenaksite(K,Na)4(Fe,Mn)2(Si4O10)2(OH,F)Tric.
9.DG.70LitidioniteCuNaKSi4O10Tric.
9.DG.70ManaksiteKNaMnSi4O10Tric.
9.DG.75TinaksiteK2Na(Ca,Mn2+)2TiO[Si7O18(OH)]Tric.
9.DG.75TokkoiteK2Ca4[Si7O18(OH)](OH,F)Tric.
9.DG.75SenkevichiteCsKNaCa2TiO[Si7O18](OH)Tric. 1 : P1
9.DG.80CanasiteK3Na3Ca5Si12O30(OH)4Mon.
9.DG.80FluorcanasiteK3Na3Ca5Si12O30F4 · H2OMon. m : Bm
9.DG.85MiseriteK1.5-x(Ca,Y,REE)5(Si6O15)(Si2O7)(OH,F)2 · yH2OTric.
9.DG.90FrankameniteK3Na3Ca5(Si12O30)(F,OH)4 · H2OTric.
9.DG.92Charoite(K,Sr)15-16(Ca,Na)32[Si6O11(O,OH)6]2[Si12O18(O,OH)12]2[Si17O25(O,OH)18]2(OH,F)4 · ~3H2OMon. 2/m : P21/m
9.DG.95YuksporiteK4(Ca,Na)14(Sr,Ba)2(◻,Mn,Fe)(Ti,Nb)4(O,OH)4(Si6O17)2(Si2O7)3(H2O,OH)3Orth.
9.DG.97Eveslogite(Na,K,Ca,Sr,Ba)48 [(Ti,Nb,Mn,Fe2+)12Si48O144(OH)12](F,OH,Cl)14Mon. 2/m : P2/m

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

72.3.2.1Tobermorite[Ca4Si6O17 · 2H2O]·(Ca·3H2O)Orth.
72.3.2.3Plombièrite[Ca4Si6O16(OH)2 · 2H2O]·(Ca·5H2O)Orth.
72.3.2.4RiversideiteCa5(HSi3O9)2 · 2H2OOrth.
72.3.2.5OkeniteCa10Si18O46 · 18H2OTric. 1 : P1
72.3.2.6TacharaniteCa12Al2Si18O33 (OH)36Mon.
72.3.2.7NekoiteCa3Si6O15·7H2OTric. 1 : P1
72.3.2.8OyeliteCa10Si8B2O29 · 12.5H2OOrth.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

14.5.1WollastoniteCaSiO3Tric. 1 : P1
14.5.2Wollastonite-7TCaSiO3
14.5.3Wollastonite-2MCaSiO3Mon. 2/m : P21/b
14.5.4RankiniteCa3Si2O7Mon. 2/m : P21/b
14.5.5KilchoaniteCa6(SiO4)(Si3O10)Orth.
14.5.6LarniteCa2SiO4Mon. 2/m
14.5.7BredigiteCa7Mg(SiO4)4Orth.
14.5.8HatruriteCa3(SiO4)OTrig.
14.5.9RosenhahniteHCa3[Si3O9(OH)]Tric.
14.5.10DellaiteCa6Si3O11(OH)2Tric.
14.5.11AfwilliteCa3(HSiO4)2 · 2H2OMon. m : Bb
14.5.12XonotliteCa6(Si6O17)(OH)2Mon. 2/m
14.5.13FoshagiteCa4(Si3O9)(OH)2Tric.
14.5.14HillebranditeCa2(SiO3)(OH)2Orth. mmm (2/m 2/m 2/m) : Cmcm
14.5.15JaffeiteCa6(Si2O7)(OH)6Trig. 3 : P3
14.5.16SuoluniteCa2(H2Si2O7) · H2OOrth.
14.5.17KillalaiteCa6.4(H0.6Si2O7)2(OH)2Mon.
14.5.18OkeniteCa10Si18O46 · 18H2OTric. 1 : P1
14.5.19RiversideiteCa5(HSi3O9)2 · 2H2OOrth.
14.5.20TrabzoniteCa4(Si3O9)(OH)2Orth. mm2 : Ama2
14.5.21GyroliteNaCa16Si23AlO60(OH)8 · 14H2OTric. 1 : P1
14.5.22FoshallasiteCa3[Si2O7] · 3H2O(?)
14.5.23Tobermorite[Ca4Si6O17 · 2H2O]·(Ca·3H2O)Orth.
14.5.25NekoiteCa3Si6O15·7H2OTric. 1 : P1
14.5.26Plombièrite[Ca4Si6O16(OH)2 · 2H2O]·(Ca·5H2O)Orth.
14.5.27JenniteCa9(Si3O9)2(OH)8 · 8H2OTric.

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 ClinotobermoriteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
New Minerals (1997), New Minerals 1990-1994.
Henmi, C., & Kusachi, I. (1992). Clinotobermorite, Ca5Si6 (O, OH) 18.5 H2O, a new mineral from Fuka, Okayama Prefecture, Japan. Mineralogical Magazine, 56(3), 353-358. http://rruff.info/rruff_1.0/uploads/MM56_353.pdf
Jambor J L, Burke E A J, Grew E S, Puziewicz J (1993) New mineral names. American Mineralogist 78, 672-678 http://rruff.info/rruff_1.0/uploads/AM78_672.pdf
Hoffmann, C. & Armbruster, T. (1997): Clinotobermorite, Ca5[Si3O8(OH)]2.4H2O - Ca5[Si6O17].5H2O, a natural C-S-H(I) type cement mineral. Determination of the substructure. Zeitschrift für Kristallographie 212, 864-873.
Merlino S, Bonaccorsi E (2008) Double wollastonite chains: topological/conformational varieties, polytypic forms, isotypic compounds. Zeitschrift für Kristallographie 223, 85-97
Merlino, S., Bonaccorsi, E., and Armbruster, T. (2001): The real structure of tobermorite-11Å: normal and anomalous forms, OD character and polytypic modifications. European Journal of Mineralogy 13(3), 577-590. http://rruff.info/rruff_1.0/uploads/AM84_1613.pdf
Merlino S, Bonaccorsi E, Armbruster T (1999) Tobermorites: Their real structure and order-disorder (OD) character. American Mineralogist 84, 1613-1621
Biagioni, C., Merlino, S., Bonaccorsi, E. (2015): The tobermorite supergroup: a new nomenclature. Mineralogical Magazine, 79, 485-495
Williams P A, Hatert F, Pasero M, Mills S J (2014) IMA Commission on new minerals, nomenclature and classification (CNMNC) Newsletter 21. New minerals and nomenclature modifications approved in 2014. Mineralogical Magazine 78, 797-804 http://rruff.info/rruff_1.0/uploads/MM78_797.pdf

Internet Links for ClinotobermoriteHide

Localities for ClinotobermoriteHide

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.
Italy
 
  • Veneto
    • Vicenza Province
      • Cornedo Vicentino
        • Spagnago
Boscardin M.,Daleffe A.,Rocchetti I., Zordan A. (2011) " Minerali del Vicentino - Aggiornamenti, località e nuove determinazioni " Museo di Archeologia e Scienze Naturali “G. Zannato” – Montecchio Maggiore (Vicenza), pp.183; Boscardin M.,Daleffe A.,Rocchetti I., Zordan A. (2011): Minerali del Vicentino - Aggiornamenti, località e nuove determinazioni. Museo di Archeologia e Scienze Naturali “G. Zannato” – Montecchio Maggiore (Vicenza), pp.183
      • Gambellara
        • S. Marco hill
Boscardin M.,Daleffe A.,Rocchetti I., Zordan A. (2011) " Minerali del Vicentino - Aggiornamenti, località e nuove determinazioni " Museo di Archeologia e Scienze Naturali “G. Zannato” – Montecchio Maggiore (Vicenza), pp.183
      • San Vito di Leguzzano-Schio
Boscardin M., Daleffe A., Rocchetti I., Zordan A. “I minerali nel Vicentino”, Museo “G. Zannato”, Montecchio Maggiore (Vicenza), 2011.
Japan (TL)
 
  • Okayama Prefecture
    • Takahashi City
      • Bicchu-cho (Bitchu-cho)
        • Fuka
Henmi, C., & Kusachi, I. (1992). Clinotobermorite, Ca5Si6(O,OH)18.5H2O, a new mineral from Fuka, Okayama Prefecture, Japan. Mineralogical Magazine, 56, 353-358.
Russia
 
  • Sverdlovsk Oblast
    • Asbest
Belakovskiy D.I. (2003): New acquisitions of the Fersman Mineralogical Museum Russian Academy of Science (1997-2001). New Data on Minerals, 38, 101-112.
South Africa
 
  • Northern Cape
    • Kalahari manganese field
      • Hotazel
Biagioni, C., Bonaccorsi, E., Lezzerini, M., Merlini, M., & Merlino, S. (2012). Thermal behaviour of tobermorite from N’Chwaning II mine (Kalahari Manganese Field, Republic of South Africa). I. Thermo-gravimetric and X-ray diffraction studies. European Journal of Mineralogy, 24(6), 981-989.
 
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