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Zaccariniite

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Federica Zaccarini
Formula:
RhNiAs
System:
Tetragonal
Colour:
Grey
Hardness:
3½ - 4
Name:
Named in honour of Dr Federica Zaccarini, University of Leoben, Austria, for her work on PGE in chromitites and ultrabasic rocks.
This page provides mineralogical data about Zaccariniite.

Classification of Zaccariniite

Approved 2011
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http://www.mindat.org/min-42874.html
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Type Occurrence of Zaccariniite

General Appearance of Type Material:
Anhedral grains (1–20 μm in size) intergrown with garutiite.
Place of Conservation of Type Material:
Mineralogical Museum of Leoben, Peter Tunner Strasse 5, Leoben, Austria, catalogue number 8241
Associated Minerals at Type Locality:

Physical Properties of Zaccariniite

Metallic
Diaphaneity (Transparency):
Opaque
Colour:
Grey
Hardness (Mohs):
3½ - 4
Hardness (Vickers):
VHN100=166 - 286
Tenacity:
Brittle
Cleavage:
None Observed

Crystallography of Zaccariniite

Crystal System:
Tetragonal
Class (H-M):
4/mmm (4/m 2/m 2/m) - Ditetragonal Dipyramidal
Space Group:
P4/nmm
Cell Parameters:
a = 3.5496(1) Å, c = 6.1578(2) Å
Ratio:
a:c = 1 : 1.735
Unit Cell Volume:
V 77.59 ų
Z:
2
Morphology:
Anhedral grains.
X-Ray Powder Diffraction Data:
d-spacingIntensity
2.326(97)
2.053(56)
1.945(100)
1.776(58)
1.775(83)
1.256(86)
1.164(60)
0.973(69)

Chemical Properties of Zaccariniite

Formula:
RhNiAs
Essential elements:
All elements listed in formula:
Analytical Data:
Rh (41.77)
Os (0.51)
Ir (0.64)
Ru (0.46)
Pd (0.34)
Ni (23.75)
Fe (0.53)
As (27.84)
S (0.10)
total of 96.09 wt.%,
Empirical Formula:
(Rh1.01Os0.01Ir0.01Ru0.01Pd0.01)∑1.05(Ni 1.00Fe0.02)∑1.02(As0.92S0.01)∑0.93

Other Names for Zaccariniite

Name in Other Languages:

Other Information

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 Zaccariniite

Reference List:
Vymazalová, A., Laufek, F., Drábek, M., Stanley, C.J., Bakker, R.J.,Bermejo, R., Garuti, G., Thalhammer, O., Proenza, J.A. and Longo, F. (2012) Zaccariniite, IMA 2011-086. CNMNC Newsletter No. 12, February 2012, page 154; Mineralogical Magazine, 76, 151-155

Vyzmalová, A., Laufer, F., Drábek, M., Stanley, C., Bakker, R.J., Bermejo, R., Garuti, G., Thalhammer, O., Proenza, J.A., Longo, F. (2012): Zaccariniite, RhNiAs, a new platinum-group mineral species from Loma Peguera, Dominican Republic. Canadian Mineralogist, 50, 1321-1329.

Internet Links for Zaccariniite

Localities for Zaccariniite

(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? 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.
Dominican Republic (TL)
 
  • Monseñor Nouel Province
    • Bonao
Vymazalová, A., Laufek, F., Drábek, M., Stanley, C.J., Bakker, R.J.,Bermejo, R., Garuti, G., Thalhammer, O., Proenza, J.A. and Longo, F. (2012): Zaccariniite, IMA 2011-086. CNMNC Newsletter No. 12, February 2012, page 154; Mineralogical Magazine, 76, 151-155; Vyzmalová, A., Laufer, F., Drábek, M., Stanley, C., Bakker, R.J., Bermejo, R., Garuti, G., Thalhammer, O., Proenza, J.A., Longo, F. (2012): Zaccariniite, RhNiAs, a new platinum-group mineral species from Loma Peguera, Dominican Republic. Canadian Mineralogist, 50, 1321-1329.
Mineral and/or Locality  
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