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Sardignaite

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Formula:
BiMo
 
2
O
 
7
(OH) · 2H
 
2
O
System:Monoclinic


Closely related to IMA2009-022.

Classification of Sardignaite

IMA status:Approved 2008
mindat.org URL:http://www.mindat.org/min-39005.html
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Type Occurrence of Sardignaite

Type Locality:Punta de Su Seinargiu (Su Senargiu), Sarroch, Cagliari Province, Sardinia, Italy

Crystallography of Sardignaite

Crystal System:Monoclinic
Class (H-M):2/m - Prismatic
Space Group:P21/m {P1 1 21/m} {P21/m} {P1 21/m 1}
Cell Parameters:a = 5.7797(7) Å, b = 11.567(1) Å, c = 6.3344(8) Å
β = 113.360(9)°
Ratio:a:b:c = 0.5 : 1 : 0.548
Unit Cell Volume:V 388.77 ų (Calculated from Unit Cell)
X-Ray Powder Diffraction:
d-spacingIntensity
5.79 (25)
5.03 (80)
3.327 (28)
3.206 (100)
3.120 (32)
2.590 (30)
2.115 (30)
1.992 (45)

Chemical Properties of Sardignaite

Formula:
BiMo
 
2
O
 
7
(OH) · 2H
 
2
O
Essential elements:Bi, H, Mo, O
All elements listed in formula:Bi, H, Mo, O

Other Names for Sardignaite

Synonyms:
IMA2008-040
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 Sardignaite

Reference List:

- +
IMA website - Nov. 2008 approvals

Ciriotti, M.E., Fascio, L. & Pasero, M. (2009): Italian Type Minerals. Edizioni Plus, Università di Pisa, Pisa, Italy, 357 pp.

P. Orlandi, M. Pasero & S. Bigi (2010): Sardignaite: a new mineral, the second known bismuth molybdate: description and crystal structure. Mineralogy & Petrology 100, 17-22.

Internet Links for Sardignaite

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
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    • Localities for Sardignaite

    Hide Locality List
    (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
     
    • Sardinia
      • Cagliari Province
        • Sarroch
    		P. Orlandi, M. Pasero & S. Bigi (2010): Sardignaite: a new mineral, the second known bismuth molybdate: description and crystal structure. Mineralogy & Petrology 100, 17-22.
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