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Garutiite

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About GarutiiteHide

Formula:
(Ni,Fe,Ir)
Colour:
gray to gray-black
Lustre:
Metallic
Specific Gravity:
11.33 (Calculated)
Crystal System:
Hexagonal
Name:
For Prof. Giorgio Garuti (born 1945) in recognition of his contributions to the understanding of the mineralogy of platinum-group elements
Dimorph of:
Ni-analogue of hexaferrum, hexamolybdenum, osmium, and ruthenium.


Classification of GarutiiteHide

Approved
Approval Year:
2009
1.AG.05

1 : ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides)
A : Metals and Intermetallic Alloys
G : PGE-metal alloys
1.1.17.8

1 : NATIVE ELEMENTS AND ALLOYS
1 : Metals, other than the Platinum Group

Physical Properties of GarutiiteHide

Metallic
Transparency:
Opaque
Colour:
gray to gray-black
Cleavage:
None Observed
Density:
11.33 g/cm3 (Calculated)

Optical Data of GarutiiteHide

Type:
Anisotropic
Anisotropism:
weak
Reflectivity:
470nmR=63.8%
546nmR=65.9%
589nmR=67.0%
650nmR=68.0%

Reflectance graph
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 68.0%.
Colour in reflected light:
white to slightly cream
Pleochroism:
Non-pleochroic

Chemical Properties of GarutiiteHide

Formula:
(Ni,Fe,Ir)
Common Impurities:
Fe,Ir

Crystallography of GarutiiteHide

Crystal System:
Hexagonal
Class (H-M):
6/mmm (6/m 2/m 2/m) - Dihexagonal Dipyramidal
Space Group:
P63/mmc
Setting:
P63/mmc
Cell Parameters:
a = 2.694(4) Å, c = 4.2731(6) Å
Ratio:
a:c = 1 : 1.586
Unit Cell V:
26.86 ų (Calculated from Unit Cell)
Z:
2

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
2.330 (50)
2.136 (30)
2.046 (100)
1.576 (30)
1.347 (40)
1.216 (40)
1.139 (20)
1.126 (20)

Type Occurrence of GarutiiteHide

General Appearance of Type Material:
botryoidal, porous grains, up to 110 μm, intergrown with other PGM and intermetallic compounds
Place of Conservation of Type Material:
Mineralogical Museum of Leoben, Austria (catalogue number 8241). The holotype (the crystal chosen for the X-ray powder diffraction work) is housed at the Canadian Museum of Nature (CMNMC 86089).
Geological Setting of Type Material:
small lensoidal bodies (,2 m) of chromitite were found associated. They are randomly distributed, typically occurring as discontinuous pods or lenses within small masses of serpentinized dunite that are in turn hosted by serpentinized harzburgite.
Associated Minerals at Type Locality:

Synonyms of GarutiiteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
Zaccariniite1 photo of Garutiite associated with Zaccariniite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

1.AG.05Hexaferrum(Fe,Os,Ru,Ir)Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc
1.AG.10Atokite(Pd,Pt)3SnIso. m3m (4/m 3 2/m) : Fm3m
1.AG.10Rustenburgite(Pt,Pd)3Sn
1.AG.10ZvyagintsevitePd3PbIso.
1.AG.15Taimyrite(Pd,Cu,Pt)3SnOrth.
1.AG.15Tatyanaite(Pt,Pd,Cu)9Cu3Sn4Orth.
1.AG.20PaolovitePd2SnOrth.
1.AG.25PlumbopalladinitePd3Pb2Hex.
1.AG.25Stannopalladinite(Pd,Cu)3Sn2Hex.
1.AG.30CabriitePd2CuSnOrth. mmm (2/m 2/m 2/m) : Pmmm
1.AG.35ChengdeiteIr3FeIso.
1.AG.35IsoferroplatinumPt3FeIso.
1.AG.40FerronickelplatinumPt2FeNiTet.
1.AG.40TetraferroplatinumPtFeTet.
1.AG.40TulameenitePt2CuFeTet.
1.AG.45HongshiitePtCuTrig.
1.AG.45SkaergaarditePdCuIso. m3m (4/m 3 2/m) : Pm3m
1.AG.50YixunitePt3InIso.
1.AG.55DamiaoitePtIn2Iso.
1.AG.60NiggliitePtSnHex.
1.AG.65BortnikovitePd4Cu3ZnTet. 4/mmm (4/m 2/m 2/m) : P4/mmm
1.AG.70NielsenitePdCu3Tet.

Related Minerals - Dana Grouping (8th Ed.)Hide

1.1.17.1TongbaiteCr3C2Orth.

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 GarutiiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
McDonald A M, Proenza J A, Zaccarini F, Rudashevsky N S, Cabri L J, Stanley C J, Rudashevsky V N, Melgarejo J C, Lewis J F, Longo F, Bakker R J (2010) Garutiite, (Ni,Fe,Ir), a new hexagonal polymorph of native Ni from Loma Peguera, Dominican Republic. European Journal of Mineralogy 22, 293-304
Anthony, J.W., Bideaux, R.A., Bladh, K.W. and Nichols, M.C., Eds. Handbook of Mineralogy, Mineralogical Society of America, Chantilly, VA 20151-1110, USA. http://www.handbookofmineralogy.org/ (2016)

Internet Links for GarutiiteHide

Localities for GarutiiteHide

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.
Dominican Republic (TL)
 
  • Monseñor Nouel Province
    • Bonao
McDonald A M, Proenza J A, Zaccarini F, Rudashevsky N S, Cabri L J, Stanley C J, Rudashevsky V N, Melgarejo J C, Lewis J F, Longo F, Bakker R J (2010) Garutiite, (Ni,Fe,Ir), a new hexagonal polymorph of native Ni from Loma Peguera, Dominican Republic. European Journal of Mineralogy 22, 293-304
Russia
 
  • Eastern-Siberian Region
    • Krasnoyarsk Krai
Barkov, A. Y., Shvedov, G. I., Silyanov, S. A., & Martin, R. F. (2018). Mineralogy of Platinum-Group Elements and Gold in the Ophiolite-Related Placer of the River Bolshoy Khailyk, Western Sayans, Russia. Minerals, 8(6), 247.
Mineral and/or Locality  
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