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Sardignaite

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About SardignaiteHide

Sardinia, Italy
Formula:
BiMo2O7(OH) · 2H2O
Colour:
pale yellow
Lustre:
Adamantine
Hardness:
3
Specific Gravity:
4.82 (Calculated)
Crystal System:
Monoclinic
Name:
For the locality Sardigna (Sardinia), Italy.
Closely related to gelosaite.


Classification of SardignaiteHide

Approved
Approval Year:
2008

Pronounciation of SardignaiteHide

Pronounciation:
PlayRecorded byCountry
Jolyon & Katya RalphUnited Kingdom

Physical Properties of SardignaiteHide

Adamantine
Transparency:
Transparent
Colour:
pale yellow
Streak:
white
Hardness:
Tenacity:
Brittle
Fracture:
Conchoidal
Density:
4.82 g/cm3 (Calculated)

Chemical Properties of SardignaiteHide

Formula:
BiMo2O7(OH) · 2H2O

Crystallography of SardignaiteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/m
Setting:
P21/m
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 V:
388.77 ų (Calculated from Unit Cell)

X-Ray Powder DiffractionHide

Powder Diffraction Data:
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)

Type Occurrence of SardignaiteHide

General Appearance of Type Material:
thin prismatic crystals up to 1 mm in length
Place of Conservation of Type Material:
University Pisa 19350
Geological Setting of Type Material:
quartz veins within a granitic rock
Associated Minerals at Type Locality:

Synonyms of SardignaiteHide

Fluorescence of SardignaiteHide

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 SardignaiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
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.
Orlandi, P., Pasero, M., Bigi, S. (2010) Sardignaite: a new mineral, the second known bismuth molybdate: description and crystal structure. Mineralogy & Petrology: 100: 17-22.

Internet Links for SardignaiteHide

Localities for SardignaiteHide

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.
Austria
 
  • Salzburg
    • Hohe Tauern
      • Wildgerlos valley
Walter, F. & Bojar, H.-P. (2016): 1972) Cannonit, Elektrum, Molybdänit, Powellit, Sardignait und gediegen Wismut von der Hohen Gabel (Gabler), Wildgerlostal, Salzburg. Pp. 218-219 in Walter, F. et al. (2016): Neue Mineralfunde aus Österreich LXV. Carinthia II, 206./126., 203-250.
Italy (TL)
 
  • Sardinia
    • Cagliari metropolitan city (Metropolitan City of Cagliari)
      • 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.; Orlandi P., Gelosa M., Bonacina E., Caboni F., Mamberti M., Tanca G.A., Vinci A. (2015): Sette nuove specie mineralogiche della Sardegna. I minerali della mineralizzazione a molibdeno e bismuto di Su Seinargiu (CA). Riv. Mineral. Ital., 39, 2, 84-115.
Mineral and/or Locality  
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