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Ruizite

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About RuiziteHide

07279780014972092842003.jpg
Joe Ruiz and Dick Thomssen
Formula:
Ca2Mn3+2[Si4O11(OH)2](OH)2 · 2H2O
formerly reported as Ca2Mn3+2[(OH)2|H2Si4O13].2H2O
Colour:
orange, red-brown
Hardness:
5
Specific Gravity:
2.9
Crystal System:
Monoclinic
Member of:
Name:
Named after Mr. Joe Ana Ruiz (1924-2017), Pharmacist, Justice of the Peace, mineralogist and mineral collector of Mammoth, Arizona. Life Member Mineralogical Society of Arizona.
Isostructural with:
The Ca-analogue of strontioruizite.

The structure (basing on recent refinement by Fendrich et al., 2016) is based on [010] chains consisting of edge-sharing MnO6 octa­hedra; the octahedra are surrounded by finite [Si4O11(OH)2] chains. Calcium atoms, [7]Ca, are located in cavities formed by the above atom groupings.


Classification of RuiziteHide

Approved
Approval year:
1977
9.BJ.35

9 : SILICATES (Germanates)
B : Sorosilicates
J : Sorosilicates with Si3O10, Si4O11, etc. anions; cations in octahedral [6] and greater coordination
57.2.2.1

57 : SOROSILICATES Si3O10 Groups and Larger Noncyclic Groups
2 : Insular Si3O10 and Larger Noncyclic Groups with [Si4O13] groups
14.18.23

14 : Silicates not Containing Aluminum
18 : Silicates of Mn and Na, K, Mg, Ca or Fe

Physical Properties of RuiziteHide

Transparency:
Translucent
Colour:
orange, red-brown
Streak:
apricot yellow
Hardness:
Density:
2.9(1) g/cm3 (Measured)    2.997 g/cm3 (Calculated)

Optical Data of RuiziteHide

Type:
Biaxial (-)
RI values:
nα = 1.663 nβ = 1.715 nγ = 1.734
2V:
Measured: 60° , Calculated: 60°
Max Birefringence:
δ = 0.071
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
High
Dispersion:
strong r > v

Chemical Properties of RuiziteHide

Formula:
Ca2Mn3+2[Si4O11(OH)2](OH)2 · 2H2O

formerly reported as Ca2Mn3+2[(OH)2|H2Si4O13].2H2O
IMA Formula:
Ca2Mn3+2Si4O11(OH)4 · 2H2O

Crystallography of RuiziteHide

Crystal System:
Monoclinic
Class (H-M):
2 - Sphenoidal
Cell Parameters:
a = 9.0360(3) Å, b = 6.1682(2) Å, c = 11.9601(4) Å
β = 91.433(2)°
Ratio:
a:b:c = 1.465 : 1 : 1.939
Unit Cell V:
666.41 ų
Z:
2
Morphology:
Euhedral prismatic crystals to 1mm, spherules of radial acicular crystals.
Twinning:
Common on {100}
Comment:
Space group: A2; Fendrich et al. (2016) have shown that the first-study space group (A2) is more likely than the further reported one (C2/m)

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0000967RuiziteMoore P B, Shen J, Araki T (1985) Crystal chemistry of the (M2)3+ phi2 sheet: Structural principles and crystal structures of ruizite, macfallite and orientite American Mineralogist 70 171-1811985Nchwaning mine, Kalahari manganese field, South Africa0293
0020603RuiziteFendrich K V, Downs R T, Origlieri M J (2016) Redetermination of ruizite, Ca2Mn3+2[Si4O11(OH)](OH)2*2H2O Acta Crystallographica E72 959-9632016Wessels mine, Northern Cape Province, South Africa0293
0019985RuiziteHawthorne F C (1984) The crystal structure of ruizite, a sorosilicate with an (Si4PHI13) cluster Tschermaks Mineralogische und Petrographische Mitteilungen 33 135-1461984Wessels mine, Kalahari manganese fields, South Africa0293
CIF Raw Data - click here to close

Type Occurrence of RuiziteHide

Place of Conservation of Type Material:
Smithsonian 136689
Geological Setting of Type Material:
Cooling of a high temperature calc-silicate rock under oxidizing conditions.

Synonyms of RuiziteHide

Other Language Names for RuiziteHide

German:Ruizit
Russian:Руицит
Spanish:Ruizita

Relationship of Ruizite to other SpeciesHide

Member of:
Other Members of this group:
StrontioruiziteSr2Mn3+2Si4O11(OH)4 · 2H2OMon. 2 : B2
Taniajacoite SrCaMn3+2Si4O11(OH)4 · 2H2OTric.

Common AssociatesHide

Associated Minerals Based on Photo Data:
14 photos of Ruizite associated with Hydroxyapophyllite-(K)KCa4(Si8O20)(OH,F) · 8H2O
11 photos of Ruizite associated with KinoiteCa2Cu2(H2O)2[Si3O10]
7 photos of Ruizite associated with Fluorapophyllite-(K)KCa4(Si8O20)(F,OH) · 8H2O
5 photos of Ruizite associated with QuartzSiO2
4 photos of Ruizite associated with GilaliteCu5Si6O17 · 7H2O
4 photos of Ruizite associated with ClinoenstatiteMgSiO3
4 photos of Ruizite associated with SugiliteKNa2Fe3+2(Li3Si12)O30
3 photos of Ruizite associated with CalciteCaCO3
3 photos of Ruizite associated with ApachiteCu9Si10O29 · 11H2O
2 photos of Ruizite associated with NorrishiteKLiMn3+2(Si4O10)O2

Related Minerals - Nickel-Strunz GroupingHide

9.BJ.ArsenmedaiteMn2+6 As5+Si5O18(OH)Mon. 2/m
9.BJ.05OrientiteCa8Mn3+10(SiO4)3(Si3O10)3(OH)10 · 4H2O Orth.
9.BJ.10RosenhahniteHCa3[Si3O9(OH)]Tric.
9.BJ.15TrabzoniteCa4(Si3O9)(OH)2Orth. mm2 : Ama2
9.BJ.20Thalénite-(Y)Y3Si3O10FMon.
9.BJ.25TiragalloiteMn2+4As5+Si3O12(OH)Mon. 2/m
9.BJ.30MedaiteMn2+6V5+Si5O18(OH)Mon.
9.BJ.40Ardennite-(As)Mn2+4Al4(AlMg)(AsO4)(SiO4)2(Si3O10)(OH)6Orth. mmm (2/m 2/m 2/m)
9.BJ.40Ardennite-(V)Mn2+4Al4(AlMg)(VO4)(SiO4)2(Si3O10)(OH)6Orth. mmm (2/m 2/m 2/m) : Pmmn
9.BJ.45KilchoaniteCa6(SiO4)(Si3O10)Orth.
9.BJ.50KornerupineMg3Al6(Si,Al,B)5O21(OH)Orth. mmm (2/m 2/m 2/m)
9.BJ.50Prismatine(◻,Fe,Mg)(Mg,Al,Fe)5Al4Si2(Si,Al)2(B,Si,Al)(O,OH,F)22Orth.
9.BJ.55ZunyiteAl13Si5O20(OH,F)18ClIso. 4 3m : F4 3m
9.BJ.60HubeiteCa2Mn2+Fe3+Si4O12(OH) · 2H2OTric.
9.BJ.65Cassagnaite(Ca,Mn2+)4(Fe3+,Mn3+,Al)4(V3+,Mg,Al)2(Si3O10)(SiO4)2(OH,O)8Orth. mmm (2/m 2/m 2/m) : Cmcm

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

14.18.1NambuliteLiMn2+4Si5O14(OH)Tric.
14.18.2Natronambulite(Na,Li)(Mn,Ca)4Si5O14OHTric.
14.18.3ZakharoviteNa4Mn5Si10O24(OH)6 · 6H2OTrig.
14.18.4NorrishiteKLiMn3+2(Si4O10)O2Mon. 2/m : B2/m
14.18.5ShafranovskiteNa3K2(Mn,Fe,Na)4[Si9(O,OH)27](OH)2 · nH2OTrig.
14.18.6AbswurmbachiteCuMn3+6(SiO4)O8Tet. 4/mmm (4/m 2/m 2/m) : I41/acd
14.18.7Donpeacorite(Mn2+,Mg)Mg[SiO3]2Orth.
14.18.8KanoiteMn2+(Mg,Mn2+)Si2O6Mon. 2/m : P21/b
14.18.9CaryopiliteMn2+3Si2O5(OH)4Mon.
14.18.10Gonyerite(Mn2+,Mg)5Fe3+(Fe3+Si3O10)(OH)8Orth.
14.18.11Tirodite
14.18.12Manganhumite(Mn2+,Mg)7(SiO4)3(OH)2Orth.
14.18.13BustamiteCaMn2+(Si2O6)Tric. 1 : P1
14.18.14GlaucochroiteCaMn2+SiO4Orth. mmm (2/m 2/m 2/m)
14.18.15Truscottite(Ca,Mn)14Si24O58(OH)8 · 2H2OTrig.
14.18.16SantaclaraiteCaMn4[Si5O14OH](OH) · H2OTric.
14.18.17FerrobustamiteCaFe2+(Si2O6)Tric.
14.18.18JohannseniteCaMn2+Si2O6Mon. 2/m : B2/b
14.18.19NeltneriteCaMn3+6(SiO4)O8Tet. 4/mmm (4/m 2/m 2/m) : I41/acd
14.18.20OrlymaniteCa4Mn3Si8O20(OH)6 · 2H2OHex.
14.18.21InesiteCa2(Mn,Fe)7Si10O28(OH)2 · 5H2OTric. 1 : P1
14.18.22OrientiteCa8Mn3+10(SiO4)3(Si3O10)3(OH)10 · 4H2O Orth.
14.18.24BostwickiteCaMn3+6Si3O16 · 7H2OOrth.
14.18.25KittatinnyiteCa2Mn2Mn(SiO4)2(OH)4 · 9H2OHex.
14.18.26LithiomarsturiteLiCa2Mn2Si5O14(OH)Tric.
14.18.27SeranditeNaMn2+2Si3O8(OH)Tric. 1 : P1
14.18.28KvanefjelditeNa4(Ca,Mn)(Si3O7)2(OH)2Orth.
14.18.29MarsturiteNaCaMn3Si5O14(OH)Tric. 1 : P1
14.18.30RaiteNa4Mn2+3Ti0.25Si8O20(OH)2 · 10H2OOrth. 2 2 2 : C2 2 2
14.18.31Richterite{Na}{NaCa}{Mg5}(Si8O22)(OH)2Mon. 2/m : B2/m
14.18.32Byelorussite-(Ce)NaBa2Ce2MnTi2[Si4O12]2O2(F,OH) · H2OOrth. mm2 : Ama2
14.18.33Deerite(Fe,Mn)6(Fe,Al)3[Si6O17]O3(OH)5Mon.
14.18.34CalderiteMn2+3Fe3+2(SiO4)3Iso.
14.18.35PyroxmangiteMn2+SiO3Tric. 1
14.18.36Dannemorite◻{Mn2+2}{Fe2+5}(Si8O22)(OH)2
14.18.37Neotocite(Mn,Fe,Mg)SiO3 · H2OAmor.
14.18.38BabingtoniteCa2(Fe,Mn)FeSi5O14(OH)Tric. 1 : P1
14.18.39ManganbabingtoniteCa2(Mn,Fe)FeSi5O14(OH)Tric.
14.18.40ÖrebroiteMn2+3(Sb5+,Fe3+)(SiO4)(O,OH)3Hex.

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 RuiziteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
American Mineralogist (1978): 63: 794-795.
Moore, P.B., J. Shen, and T. Araki (1985) Crystal chemistry of the 2∞[M 3+ 2ф2(TO4)2] sheet: structural principles and crystal structures of ruizite, macfallite and orientite. American Mineralogist (1985): 70: 171-181.
Tschermaks Mineralogische und Petrographische Mitteilungen: 33: 135-146.
Fendrich, K.V., Downs, R.T., Origlieri, M.J. (2016): Redetermination of ruizite, Ca2Mn3+2[Si4O11(OH)2](OH)2·2H2O. Acta Crystallographica: E72: 959-963; http://forum.amiminerals.it/viewtopic.php?f=5&t=12870 (2016)

Internet Links for RuiziteHide

Localities for RuiziteHide

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
 
  • Liguria
    • La Spezia Province
      • Borghetto di Vara
Balestra, C., Kolitsch, U., Blass, G., Callegari, A.M., Boiocchi, M., Armellino, G., Ciriotti, M.E., Ambrino, P. Bracco, R. (2009): Mineralogia ligure 2007-2008: novità caratterizzate dal Servizio UK dell’AMI. Micro, 1-2009, 78-99.
South Africa
 
  • Northern Cape
    • Kalahari manganese field
      • Hotazel
Von Bezing, K. L. et al. (1991) The Kalahari manganese field: An Update, Mineralogical Record 22(4) 279-302;
      • Kuruman
        • N'Chwaning Mines
Y.Okazaki collection
Cairncross, B., Dixon, R. (1995) Cairncross, B., Dixon, R. (1995) Minerals of South Africa. Geological Society of South Africa, PO Box 44283, Linden 2104, South Africa.
USA (TL)
 
  • Arizona
    • Gila Co.
      • Banner Mining District
        • Christmas
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd. ed.: 231, 358. ; Bob Meyer (2012) Micro Mineral Collector. Friends of Mineralogy National Newsletter 42:10-13
  • Pennsylvania
    • Lebanon Co.
      • Cornwall Borough (Cornwall)
Kearns, L.E. & Kearns, C.A. (2008) Mineral News, 24, #1, 8-9.
 
Mineral and/or Locality  
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