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Ribbeite

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Paul Ribbe
Formula:
(Mn2+,Mg)5(SiO4)2(OH)2
Colour:
Pink
Lustre:
Vitreous
Hardness:
5
Crystal System:
Orthorhombic
Name:
Named in 1987 by Donald R. Peacor, Pete J. Dunn, S. C. Su, and J. Innes in honor of Paul Hubert Ribbe, professor of mineralogy at Virginia Polytechnic Institute and State University, Blacksburg, Virginia, USA and investigator of crystal structures. Born 1935, died June 2017.
This page provides mineralogical data about Ribbeite.


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Classification of RibbeiteHide

Approved
Approval Year:
1985
9.AF.65

9 : SILICATES (Germanates)
A : Nesosilicates
F : Nesosilicates with additional anions; cations in [4], [5] and/or only [6] coordination
52.3.2b.4

52 : NESOSILICATES Insular SiO4 Groups and O,OH,F,H2O
3 : Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] coordination only
14.17.5

14 : Silicates not Containing Aluminum
17 : Silicates of Mn

Physical Properties of RibbeiteHide

Vitreous
Transparency:
Transparent
Colour:
Pink
Hardness:

Optical Data of RibbeiteHide

Type:
Biaxial (+)
RI values:
nα = 1.780 nβ = 1.792 nγ = 1.808
2V:
Measured: 83° , Calculated: 84°
Max Birefringence:
δ = 0.028
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Very High
Dispersion:
r > v distinct

Chemical Properties of RibbeiteHide

Formula:
(Mn2+,Mg)5(SiO4)2(OH)2
IMA Formula:
Mn2+5(SiO4)2(OH)2
Common Impurities:
Fe,Ca,H2O

Crystallography of RibbeiteHide

Crystal System:
Orthorhombic
Cell Parameters:
a = 4.79 Å, b = 10.74 Å, c = 15.7 Å
Ratio:
a:b:c = 0.446 : 1 : 1.462
Unit Cell V:
807.68 ų (Calculated from Unit Cell)

Type Occurrence of RibbeiteHide

Synonyms of RibbeiteHide

Other Language Names for RibbeiteHide

German:Ribbeit
Spanish:Ribbeita

Relationship of Ribbeite to other SpeciesHide

Other Members of this group:
JerrygibbsiteMn2+9(SiO4)4(OH)2Orth. mmm (2/m 2/m 2/m) : Pbcn
LeucophoeniciteMn2+7(SiO4)3(OH)2Mon. 2/m : P21/b

Related Minerals - Nickel-Strunz GroupingHide

9.AF.05SillimaniteAl2(SiO4)OOrth. mmm (2/m 2/m 2/m)
9.AF.10AndalusiteAl2(SiO4)OOrth. mmm (2/m 2/m 2/m) : Pnnm
9.AF.10KanonaiteMn3+Al(SiO4)OOrth. mmm (2/m 2/m 2/m) : Pnnm
9.AF.15KyaniteAl2(SiO4)OTric. 1 : P1
9.AF.20MulliteAl4+2xSi2-2xO10-xOrth. mmm (2/m 2/m 2/m) : Pbam
9.AF.20Krieselite(Al,Ga)2(GeO4)(OH)2Orth. mmm (2/m 2/m 2/m) : Pnma
9.AF.23BoromulliteAl9BSi2O19Orth. mm2 : Cmc21
9.AF.25YoderiteMg(Al,Fe3+)3(SiO4)2O(OH)Mon. 2/m : P21/m
9.AF.30MagnesiostauroliteMg(Mg,Li)3(Al,Mg)18Si8O44(OH)4Mon. 2/m : B2/m
9.AF.30StauroliteFe2+2Al9Si4O23(OH)Mon. 2/m : B2/m
9.AF.30ZincostauroliteZn2Al9Si4O23(OH)Mon. 2/m : B2/m
9.AF.35TopazAl2(SiO4)(F,OH)2Orth. mmm (2/m 2/m 2/m)
9.AF.40NorbergiteMg3(SiO4)(F,OH)2Orth. mmm (2/m 2/m 2/m)
9.AF.45AlleghanyiteMn2+5(SiO4)2(OH)2Mon. 2/m : P21/b
9.AF.45Chondrodite(Mg,Fe2+)5(SiO4)2(F,OH)2Mon. 2/m : P21/b
9.AF.45ReinhardbraunsiteCa5(SiO4)2(OH,F)2Mon. 2/m : P21/b
9.AF.45KumtyubeiteCa5(SiO4)2F2Mon. 2/m : P21/b
9.AF.45HydroxylchondroditeMg5(SiO4)2(OH)2Mon. 2/m : P21/b
9.AF.50Humite(Mg,Fe2+)7(SiO4)3(F,OH)2Orth. mmm (2/m 2/m 2/m)
9.AF.50Manganhumite(Mn2+,Mg)7(SiO4)3(OH)2Orth.
9.AF.50Unnamed (Ca-analogue of Humite)Ca7(SiO4)4F2Orth. mmm (2/m 2/m 2/m)
9.AF.55ClinohumiteMg9(SiO4)4F2Mon. 2/m : P21/b
9.AF.55SonoliteMn2+9(SiO4)4(OH)2Mon.
9.AF.55HydroxylclinohumiteMg9(SiO4)4(OH)2Mon. 2/m
9.AF.60LeucophoeniciteMn2+7(SiO4)3(OH)2Mon. 2/m : P21/b
9.AF.70JerrygibbsiteMn2+9(SiO4)4(OH)2Orth. mmm (2/m 2/m 2/m) : Pbcn
9.AF.75FranciscaniteMn2+6(V5+,☐)2(SiO4)2(O,OH)6Hex.
9.AF.75ÖrebroiteMn2+3(Sb5+,Fe3+)(SiO4)(O,OH)3Hex.
9.AF.75WeliniteMn2+6(W6+,Mg)2(SiO4)2(O,OH)6Trig. 3 : P3
9.AF.80EllenbergeriteMg6(Mg,Ti,Zr,◻)2(Al,Mg)6Si8O28(OH)10Hex.
9.AF.85Chloritoid(Fe2+,Mg,Mn2+)Al2(SiO4)O(OH)2Mon. 2/m : B2/b
9.AF.85MagnesiochloritoidMgAl2(SiO4)O(OH)2Mon. 2/m : B2/b
9.AF.85Ottrélite(Mn2+,Fe2+,Mg)Al2(SiO4)O(OH)2Mon.
9.AF.90PoldervaartiteCaCa[SiO3(OH)](OH)Orth. mmm (2/m 2/m 2/m) : Pbca
9.AF.90OlmiiteCaMn2+[SiO3(OH)](OH)Orth. mmm (2/m 2/m 2/m) : Pbca

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

52.3.2b.1AlleghanyiteMn2+5(SiO4)2(OH)2Mon. 2/m : P21/b
52.3.2b.2Chondrodite(Mg,Fe2+)5(SiO4)2(F,OH)2Mon. 2/m : P21/b
52.3.2b.3ReinhardbraunsiteCa5(SiO4)2(OH,F)2Mon. 2/m : P21/b

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

14.17.1RhodoniteCaMn3Mn(Si5O15)Tric. 1
14.17.2TephroiteMn2+2SiO4Orth. mmm (2/m 2/m 2/m)
14.17.3BrauniteMn2+Mn3+6(SiO4)O8Tet. 4/mmm (4/m 2/m 2/m) : I41/acd
14.17.4AlleghanyiteMn2+5(SiO4)2(OH)2Mon. 2/m : P21/b
14.17.6LeucophoeniciteMn2+7(SiO4)3(OH)2Mon. 2/m : P21/b
14.17.7JerrygibbsiteMn2+9(SiO4)4(OH)2Orth. mmm (2/m 2/m 2/m) : Pbcn
14.17.8BementiteMn7Si6O15(OH)8Mon.
14.17.9Parsettensite(K,Na,Ca)7.5(Mn,Mg)49Si72O168(OH)50 · nH2OMon. 2/m : B2/m
14.17.10YofortieriteMn5Si8O20(OH)2 · 8-9H2OMon. 2/m : B2/m

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 RibbeiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
American Mineralogist (1987): 72: 213-216.
American Mineralogist (1993): 78: 190-194.

Internet Links for RibbeiteHide

Localities for RibbeiteHide

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.
Japan
 
  • Honshu Island
    • Chubu Region
      • Gifu Prefecture
        • Mino City
Masutomi Museum specimen (Kyoto)
      • Nagano Prefecture
        • Kami-Ina-gun
          • Hamayokokawa mine (Hamayokogawa mine)
Akira Kato (2011) Explanations of distributed specimens at the Ordinary Meeting of Mumeikai Group, No. 34 (January, 20011).
    • Kanto Region
      • Tochigi Prefecture
        • Kanuma City
Kato & Matsubara (1994) Mineralogical Journal, 17, 77-82.; Akira Kato (undated manuscript): Country rock and Minerals of the Kaso mine, Kanuma City, Tochigi Prefecture. (in japanese)
    • Kinki Region
      • Shiga Prefecture
        • Takashima City
Masutomi Museum specimen (Kyoto)
Yamada, S. (2004) Nihonsan-koubutsu Gojuon-hairetsu Sanchi-ichiranhyou (111 pp.)
Yamada, S. (2004) Nihonsan-koubutsu Gojuon-hairetsu Sanchi-ichiranhyou (111 pp.)
  • Shikoku Island
    • Ehime Prefecture
      • Ouzu City
        • Nagahama
Minakawa et al (1991) Ganseki-Koubutsu-Koshogaku Zasshi, 86, 182.
Namibia (TL)
 
  • Otjozondjupa Region
    • Grootfontein District
      • Kombat
Dunn, P.J. (1991), Rare minerals of the Kombat Mine, Mineralogical Record: 22(6): 421-425.
Romania
 
  • Maramureș Co.
http://minerals-of-the-carpathians.eu
Russia
 
  • Urals Region
    • Southern Urals
      • Bashkortostan Republic (Bashkiria Republic)
        • Sibay
Brusnitsyn, A.I. (2006): Geology of Ore Deposits 48(3), 193-214.
Switzerland
 
  • Wallis (Valais)
    • Turtmann Valley
      • Pipjitälli
The Canadian Mineralogist Vol. 44, pp. 000 (2006) page 205
USA
 
  • New Jersey
    • Sussex Co.
      • Franklin Mining District
        • Franklin
Heixhong Yang
Mineral and/or Locality  
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