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IMA2007-047

Formula:
Pb
 
2
[B
 
5
O
 
9
]Cl·0.5H
 
2
O
System:Orthorhombic


Hilgardite group

Classification of IMA2007-047

IMA status:Approved 2007
Nickel-Strunz 10th (pending) edition ID:6.EA.05

6 : BORATES
E : Pentaborates
A : Neso-pentaborates
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Type Occurrence of IMA2007-047

Type Locality:Asunción Mine, Caracoles, Sierra Gorda District, Tocopilla Province, Antofagasta Region, Chile

Crystallography of IMA2007-047

Crystal System:Orthorhombic
Class (H-M):mm2 - Pyramidal
Space Group:Pnn2
Cell Parameters:a = 11.3757Å, b = 11.5051Å, c = 6.5568Å
Ratio:a:b:c = 0.989 : 1 : 0.57
Unit Cell Volume:V 858.14 ų (Calculated from Unit Cell)
X-Ray Powder Diffraction:
d-spacingIntensity
5.71 (80)
4.04 (100)
3.29 (40)
3.16 (30)
2.84 (100)
2.55 (40)
2.019 (70)

Chemical Properties of IMA2007-047

Formula:
Pb
 
2
[B
 
5
O
 
9
]Cl·0.5H
 
2
O
All elements listed in formula:B, Cl, H, O, Pb

Relationship of IMA2007-047 to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
6.EA.05Sborgite
Na[B
 
5
O
 
6
(OH)
 
4
] · 3H
 
2
O
6.EA.10Santite
K[B
 
5
O
 
6
(OH)
 
4
] · 2H
 
2
O
6.EA.10Ramanite-(Rb)
Rb[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 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 IMA2007-047

Reference List:IMA website - Proposals approved in January 2008

Internet Links for IMA2007-047

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for IMA2007-047 in the Natural History Museum (London) online catalogue
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    Localities for IMA2007-047

    (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.
    Chile
     
    • Antofagasta Region
      • Tocopilla Province
        • Sierra Gorda District
          • Caracoles
    		IMA website - Proposals approved in January 2008
    Mineral and/or Locality
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