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Ramanite-(Rb)

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Dr. Chandrasekhara Venkata Raman
Formula:
Rb[B5O6(OH)4] · 2H2O
System:
Orthorhombic
Name:
Named for Sir Chandrasekhara Venkata Raman (1888-1970), originator of Raman spectroscopy.
Santite group


Classification of Ramanite-(Rb)

IMA status:
Approved
Approval Year:
2007
Strunz 9th ed.:
6.EA.10
Nickel-Strunz 10th (pending) ed.:
6.EA.10

6 : BORATES
E : Pentaborates
A : Neso-pentaborates
Dana 8th ed.:
26.5.2.2

26 : HYDRATED BORATES CONTAINING HYDROXYL OR HALOGEN
5 : Pentaborates

Chemical Properties of Ramanite-(Rb)

Formula:
Rb[B5O6(OH)4] · 2H2O
IMA Formula:
RbB5O6(OH)4 · 2H2O
Elements listed in formula:
B, H, O, Rb - search for minerals with similar chemistry

Crystallography of Ramanite-(Rb)

Crystal System:
Orthorhombic
Class (H-M):
mm2 - Pyramidal
Space Group:
Aba2
Cell Parameters:
a = 11.304 Å, b = 10.963 Å, c = 9.337 Å
Ratio:
a:b:c = 1.031 : 1 : 0.852
Unit Cell Volume:
V 1,157.09 ų (Calculated from Unit Cell)
X-Ray Powder Diffraction Data:
d-spacingIntensity
3.554 (100)
5.481 (85)
3.391 (63)
2.826 (47)
6.018 (38)
3.329 (38)
2.894 (28)
3.259 (26)

Type Occurrence of Ramanite-(Rb)

Type Locality:
ⓘ San Piero in Campo, Campo nell'Elba, Elba Island, Livorno Province, Tuscany, Italy

Relationship of Ramanite-(Rb) to other Species

Related Minerals - Nickel-Strunz Grouping):
6.EA.05SborgiteNa[B5O6(OH)4] · 3H2O
6.EA.05LeucostauritePb2[B5O9]Cl · 0.5H2O
6.EA.10SantiteK[B5O6(OH)4] · 2H2O
6.EA.10Ramanite-(Cs)Cs[B5O6(OH)4] · 2H2O
6.EA.15Ammonioborite(NH4)2[B5O6(OH)4]2 · H2O
6.EA.25UlexiteNaCa[B5O6(OH)6] · 5H2O

Other Names for Ramanite-(Rb)

Synonyms:

IMA2007-006

Name in Other Languages:

Other Information

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 Ramanite-(Rb)

Reference List:
Thomas, R., P. Davidson, & A. Hahn (2008): Ramanite-(Ce) and ramanite-(Rb): New cesium and rubidium pentaborate tetrahydrate minerals identified with Raman spectroscopy: American Mineralogist 93, 1034-1042.

Internet Links for Ramanite-(Rb)

mindat.org URL:
https://www.mindat.org/min-31662.html
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    • Localities for Ramanite-(Rb)

    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.
    (TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? 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.
    Italy (TL)
     
    • Tuscany
      • Livorno Province
        • Elba Island
          • Campo nell'Elba
    		Thomas, R., Davidson, P., & Hahn, A. (2008). Ramanite-(Cs) and ramanite-(Rb): New cesium and rubidium pentaborate tetrahydrate minerals identified with Raman spectroscopy. American Mineralogist, 93(7), 1034-1042.
    Mineral and/or Locality  
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