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Ramanite-(Rb)

Formula:
Rb[B
 
5
O
 
6
(OH)
 
4
]·2H
 
2
O
System:Orthorhombic
Name:Named for Sir Chandrasekhara Venkata Raman (1888-1970), originator of Raman spectroscopy.


Santite group

Classification of Ramanite-(Rb)

IMA status:Approved 2007
Strunz 9th edition ID:6.EA.10
Nickel-Strunz 10th (pending) edition ID:6.EA.10

6 : BORATES
E : Pentaborates
A : Neso-pentaborates
Dana 8th edition ID:26.5.2.2

26 : HYDRATED BORATES CONTAINING HYDROXYL OR HALOGEN
5 : Pentaborates
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Type Occurrence of Ramanite-(Rb)

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

Crystallography of Ramanite-(Rb)

Crystal System:Orthorhombic
Class (H-M):mm2 - Pyramidal
Space Group:Aba2
Cell Parameters:a = 11.304Å, b = 10.963Å, c = 9.337Å
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:
d-spacingIntensity
3.554 (100)
5.481 (85)
3.391 (63)
2.826 (47)
6.018 (38)
3.329 (38)
2.894 (28)

Chemical Properties of Ramanite-(Rb)

Formula:
Rb[B
 
5
O
 
6
(OH)
 
4
]·2H
 
2
O
All elements listed in formula:B, H, O, Rb

Relationship of Ramanite-(Rb) to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
6.EA.05Sborgite
Na[B
 
5
O
 
6
(OH)
 
4
] · 3H
 
2
O
6.EA.05IMA2007-047
Pb
 
2
[B
 
5
O
 
9
]Cl·0.5H
 
2
O
6.EA.10Santite
K[B
 
5
O
 
6
(OH)
 
4
] · 2H
 
2
O
6.EA.10Ramanite-(Cs)
Cs[B
 
5
O
 
6
(OH)
 
4
]·2H
 
2
O
6.EA.15Ammonioborite
(NH
 
4
)
 
2
[B
 
5
O
 
6
(OH)
 
4
]
 
2
 · H
 
2
O
6.EA.25Ulexite
NaCa[B
 
5
O
 
6
(OH)
 
6
] · 5H
 
2
O

Other Names for Ramanite-(Rb)

Synonyms:
IMA2007-006
Other Languages:

Other Information

Health Warning: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)

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  • Raman and XRD data at RRUFF project
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    Localities for Ramanite-(Rb)

    (TL) indicates type locality. ? 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
     
    • Tuscany
      • Livorno Province
        • Elba Island
          • Campo nell'Elba
    		New Minerals Approved in 2007: Proposals approved in May 2007
    Mineral and/or Locality
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