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Nuragheite

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About NuragheiteHide

Nuraghe Su Nuraxi

Sardinia, Italy
Formula:
Th(MoO4)2·H2O
Lustre:
Adamantine, Pearly
Specific Gravity:
5.147 (Calculated)
Crystal System:
Monoclinic
Name:
The name is related to “nuraghe”, the main type of ancient megalithic building found in Sardinia, Italy
New structure type. The second thorium molybdate reported in nature.


Classification of NuragheiteHide

Approved
Approval Year:
2013

Physical Properties of NuragheiteHide

Adamantine, Pearly
Transparency:
Transparent
Streak:
white
Tenacity:
Brittle
Cleavage:
Perfect
parallel to (100)
Density:
5.147 g/cm3 (Calculated)

Chemical Properties of NuragheiteHide

Formula:
Th(MoO4)2·H2O
IMA Formula:
Th(MoO4)2 · H2O

Crystallography of NuragheiteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/b
Setting:
P21/c
Cell Parameters:
a = 7.358(2) Å, b = 10.544(3) Å, c = 9.489(2) Å
β = 91.88(2)°
Ratio:
a:b:c = 0.698 : 1 : 0.9
Unit Cell V:
735.79 ų (Calculated from Unit Cell)
Z:
4
Morphology:
Thin {100} tabular crystalss, up to 200 μm in length

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
5.28(m)
5.20(m)
5.04(m)
4.756(m)
3.688(m)
3.546(vs)
3.177(s)
3.024(m)
Comments:
From Type Description.

Type Occurrence of NuragheiteHide

General Appearance of Type Material:
Thin tabular crystals, up to 200 µ.
Place of Conservation of Type Material:
Type material is deposited in the collections of the Museo di Storia Naturale, Universita` di Pisa, Calci (Pisa), Italy, catalogue number 19680
Geological Setting of Type Material:
Quartz molybdenite veins.
Associated Minerals at Type Locality:

Synonyms of NuragheiteHide

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 NuragheiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Orlandi, P., Biagioni, C. and Bindi, L. (2013) Nuragheite, IMA 2013-088. CNMNC Newsletter No. 18, December 2013, page 3255; Mineralogical Magazine, 77, 3249-3258.
Orlandi, P., Biagioni, C., Bindi, L. & Merlino, S. (2015): Nuragheite, Th(MoO4)2.H2O, the second natural thorium molybdate and its relationships with ichnusaite and synthetic Th(MoO4)2. American Mineralogist, 100, 267-273.

Internet Links for NuragheiteHide

Localities for NuragheiteHide

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.
Italy (TL)
 
  • Sardinia
    • Cagliari metropolitan city (Metropolitan City of Cagliari)
      • Sarroch
Orlandi, P., Biagioni, C. and Bindi, L. (2013) Nuragheite, IMA 2013-088. CNMNC Newsletter No. 18, December 2013, page 3255; Mineralogical Magazine, 77, 3249-3258.; Orlandi, P., Biagioni, C., Bindi, L. & Merlino, S. (2015): Nuragheite, Th(MoO4)2.H2O, the second natural thorium molybdate and its relationships with ichnusaite and synthetic Th(MoO4)2. American Mineralogist, 100, 267-273 ; 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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