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Dr. Chandrasekhara Venkata Raman
Rb[B5O6(OH)4] · 2H2O
Crystal System:
Named in honor of Sir Chandrasekhara Venkata Raman (7 November 1888, Thiruvanaikoil, Tiruchirappalli, Madras Presidency, British India - 21 November 1970, Bangalore, Karnataka, India), physicist. He was awarded the 1930 Nobel Prize for Physics for discovering what is now called Raman scattering. Raman spectroscopy is based on this effect and is now an important tool for mineral identification, and was critical for the discovery of this mineral.
This page provides mineralogical data about Ramanite-(Rb).

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Classification of Ramanite-(Rb)Hide

Approval Year:

E : Pentaborates
A : Neso-pentaborates

5 : Pentaborates

Chemical Properties of Ramanite-(Rb)Hide

Rb[B5O6(OH)4] · 2H2O
IMA Formula:
RbB5O6(OH)4 · 2H2O

Crystallography of Ramanite-(Rb)Hide

Crystal System:
Class (H-M):
mm2 - Pyramidal
Space Group:
Cell Parameters:
a = 11.304 Å, b = 10.963 Å, c = 9.337 Å
a:b:c = 1.031 : 1 : 0.852
Unit Cell V:
1,157.09 ų (Calculated from Unit Cell)

X-Ray Powder DiffractionHide

Powder Diffraction Data:
3.554 Å(100)
5.481 Å(85)
3.391 Å(63)
2.826 Å(47)
6.018 Å(38)
3.329 Å(38)
2.894 Å(28)
3.259 Å(26)

Type Occurrence of Ramanite-(Rb)Hide

Synonyms of Ramanite-(Rb)Hide

Related Minerals - Nickel-Strunz GroupingHide

6.EA.05SborgiteNa[B5O6(OH)4] · 3H2OMon.
6.EA.05LeucostauritePb2[B5O9]Cl · 0.5H2OOrth. mm2 : Pnn2
6.EA.10SantiteK[B5O6(OH)4] · 2H2OOrth.
6.EA.10Ramanite-(Cs)Cs[B5O6(OH)4] · 2H2OMon. 2/m : B2/b
6.EA.15Ammonioborite(NH4)2[B5O6(OH)4]2 · H2OMon. 2/m : B2/b
6.EA.25UlexiteNaCa[B5O6(OH)6] · 5H2OTric. 1 : P1

Related Minerals - Dana Grouping (8th Ed.)Hide[B5O6(OH)4] · 2H2OOrth.[B5O6(OH)4] · 2H2OMon. 2/m : B2/b

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 Ramanite-(Rb)Hide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
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)Hide

Localities for Ramanite-(Rb)Hide

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 (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.
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