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Alflarsenite

Formula:
NaCa
 
2
Be
 
3
Si
 
4
O
 
13
(OH)·2H
 
2
O
System:Monoclinic

Classification of Alflarsenite

IMA status:Approved 2008
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Type Occurrence of Alflarsenite

Type Locality:Tuften (Tuften 1 Quarry; Tuften 2 Quarry), Tvedalen, Larvik, Vestfold, Norway

Crystallography of Alflarsenite

Crystal System:Monoclinic
Class (H-M):2 - Sphenoidal
Space Group:P21 {P1 1 21} {P21} {P1 21 1}
Cell Parameters:a = 7.1222Å, b = 19.8378Å, c = 9.8071Å
β = 111.287°
Ratio:a:b:c = 0.359 : 1 : 0.494
Unit Cell Volume:V 1,291.10 ų (Calculated from Unit Cell)
X-Ray Powder Diffraction:
d-spacingIntensity
9.095 (100)
6.279 (42)
4.189 (32)
3.972 (76)
3.205 (37)
2.964 (70)
2.915 (92)

Chemical Properties of Alflarsenite

Formula:
NaCa
 
2
Be
 
3
Si
 
4
O
 
13
(OH)·2H
 
2
O
All elements listed in formula:Be, Ca, H, Na, O, Si

Other Names for Alflarsenite

Synonyms:
IMA2008-023
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 Alflarsenite

Reference List:IMA website - Proposals approved in August 2008

Raade, G., Grice, J.D., Cooper, M.A. (2009): Alflarsenite, a new beryllium-silicate zeolite from a syenitic pegmatite in the Larvik plutonic complex, Oslo Region, Norway. European Journal of Mineralogy, 21, (in press

Internet Links for Alflarsenite

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  • Raman and XRD data at RRUFF project
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    Localities for Alflarsenite

    (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.
    Norway
     
    • Vestfold
      • Larvik
        • Tvedalen
    IMA website - Proposals approved in August 2008; Raade, G., Grice, J.D., Cooper, M.A. (2009): Alflarsenite, a new beryllium-silicate zeolite from a syenitic pegmatite in the Larvik plutonic complex, Oslo Region, Norway. European Journal of Mineralogy, 21, 893-900
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