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Decagonite

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About DecagoniteHide

Formula:
Al71Ni24Fe5
Colour:
Gray to black
Lustre:
Metallic
Name:
Named decagonite for the 10-fold symmetry of its structure.
A natural quasicrystal phase; a synthetic analogue is known. It is not possible to give three-dimensional unit-cell values for this mineral.


Classification of DecagoniteHide

Approved
Approval Year:
2015
1.AH.

1 : ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides)
A : Metals and Intermetallic Alloys
H : Miscellaneous Elements, alloys

Physical Properties of DecagoniteHide

Metallic
Colour:
Gray to black

Chemical Properties of DecagoniteHide

Formula:
Al71Ni24Fe5

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.765(50)
3.405(40)
2.332(25)
2.051(45)
2.024(100)
1.980(40)
1.801(30)
1.422(35)
Comments:
From Type Description.

Type Occurrence of DecagoniteHide

Place of Conservation of Type Material:
Type material is deposited in the mineralogical collection of the Museo di Storia Naturale, Sezione di Mineralogia e Litologia, Universita` di Firenze, Via La Pira 4, I-50121 Firenze, Italy, catalogue number 3146/I
Geological Setting of Type Material:
CV2 carbonaceous chondrite meteorite.
Associated Minerals at Type Locality:

Synonyms of DecagoniteHide

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 DecagoniteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Bindi, L. and Steinhardt, P.J. (2015) Decagonite, IMA 2015-017. CNMNC Newsletter No. 25, June 2015, page 535. Mineralogical Magazine: 79: 529-535.
Bindi, L., Yao, N., Lin, C., Hollister, L. S., Andronicos, C. L., Distler, V. V., Eddy, M. V., Kostin, A., Kryachko, V., MacPherson, G. J., Steinhardt, W. M., Yudovskay, M., Steinhardt, P. J. (2015) Natural quasicrystal with decagonal symmetry. Scientific Reports 5, Article number: 9111 [doi:10.1038/srep09111].
Bindi, L., Yao, N., Lin, C., Hollister, L. S., Andronicos, C. L., Distler, V. V., Eddy, M. V., Kostin, A., Kryachko, V., MacPherson, G. J., Steinhardt, W. M., Yudovskay, M., Steinhardt, P. J. (2015) Decagonite, Al71Ni24Fe5, a quasicrystal with decagonal symmetry from the Khatyrka CV3 carbonaceous chondrite. American Mineralogist: 100(10): 2340-2343.

Internet Links for DecagoniteHide

Localities for DecagoniteHide

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.
Russia (TL)
 
  • Far-Eastern Region
    • Koriak Autonomous Okrug
      • Koryak Upland (Koriak; Koriakskhiye)
        • Iomrautvaam Massif
          • Chetkinvaiam tectonic melange
            • Khatyrka river
              • Listvenitovyi stream
Bindi, L., Yao, N., Lin, C., Hollister, L. S., Andronicos, C. L., Distler, V. V., ... & Steinhardt, W. M. (2015). Decagonite, Al71Ni24Fe5, a quasicrystal with decagonal symmetry from the Khatyrka CV3 carbonaceous chondrite. American Mineralogist, 100(10), 2340-2343.; Bindi, L. and Steinhardt, P.J. (2015) Decagonite, IMA 2015-017. CNMNC Newsletter No. 25, June 2015, page 535; Mineralogical Magazine, 79, 529-535; Bindi, L. et al. (2015): Natural quasicrystal with decagonal symmetry. Scientific Reports 5, Article number: 9111 [doi:10.1038/srep09111].
Mineral and/or Locality  
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