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Naquite

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About NaquiteHide

Formula:
FeSi
Colour:
Steel grey, Tin white
Lustre:
Metallic
Hardness:
Specific Gravity:
6.128 (Calculated)
Crystal System:
Isometric
Name:
Originally called ‘fersilicite’ (after its chemical composition), the species and new name have now been approved by the CNMNC (IMA 2010–010).

The name naquite is for Naqu (Nagchu) Prefecture, Tibet, near the type locality.
One of many natural Fe-Si phases; beside the approved species (listed below) you may want to compare Unnamed (Fe silicide I), Unnamed (Fe silicide II) and UM2000-60-Si:Fe.

Originally reported as fersilicite (published without approval) from Poltava series, Zachativsk station, Donets (Donetsk) region, Donets'k Oblast' (Donetsk Oblast'), Ukraine. The first extra-terrestrial confirmation is from the Khatyrka meteorite (Ma et al., 2016).

The name "fersilicide" sometimes found in the literature also refers to naquite.


Classification of NaquiteHide

Approved
Approval Year:
2010
1.BB.15

1 : ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides)
B : Metallic Carbides, Silicides, Nitrides and Phosphides
B : Silicides
1.1.33.2

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

Physical Properties of NaquiteHide

Metallic
Transparency:
Opaque
Colour:
Steel grey, Tin white
Streak:
Grayish-black
Hardness:
6½ on Mohs scale
Comment:
Estimated
Tenacity:
Brittle
Cleavage:
None Observed
no apparent cleavage.
Fracture:
Conchoidal
Density:
6.128 g/cm3 (Calculated)

Chemical Properties of NaquiteHide

Formula:
FeSi

Crystallography of NaquiteHide

Crystal System:
Isometric
Class (H-M):
2 3 - Tetartoidal
Space Group:
P21 3
Setting:
P21 3
Cell Parameters:
a = 4.486(4) Å
Unit Cell V:
90.28 ų
Z:
4
Morphology:
As irregular crystals range from 15 to 50 μm in diameter.

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.1742 (40)
2.5917 (43)
2.0076 (100)
1.8307 (65)
1.1990 (36)

Type Occurrence of NaquiteHide

General Appearance of Type Material:
As irregular crystals range from 15 to 50 μm in diameter and form an intergrowth with luobusaite.
Place of Conservation of Type Material:
Institute of Geology, Chinese Academy of Geological Sciences, Beijing, P.R. China, catalog no. 97-8-2
Geological Setting of Type Material:
In podiform chromitites
Associated Minerals at Type Locality:

Synonyms of NaquiteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
Xifengite3 photos of Naquite associated with Xifengite on mindat.org.
Gupeiite3 photos of Naquite associated with Gupeiite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

1.BB.ZangboiteTiFeSi2Orth. mmm (2/m 2/m 2/m) : Pbam
1.BB.BrownleeiteMnSiIso. 2 3 : P21 3
1.BB.05Suessite(Fe,Ni)3Si
1.BB.05MavlyanoviteMn5Si3Hex. 6/mmm (6/m 2/m 2/m) : P63/mcm
1.BB.10UM2001-18-Si:CuPtSn(Cu,Pt)4Si
1.BB.10Perryite(Ni,Fe)5(Si,P)2Trig.
1.BB.20LinzhiiteFeSi2Tet. 4/mmm (4/m 2/m 2/m) : P4/mmm
1.BB.25LuobusaiteFe0.84Si2Orth. mmm (2/m 2/m 2/m) : Cmca
1.BB.30GupeiiteFe3SiIso.
1.BB.35HapkeiteFe2SiIso. m3m (4/m 3 2/m) : Pm3m
1.BB.40XifengiteFe5Si3Hex. 6/mmm (6/m 2/m 2/m) : P63/mcm

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

1.1.33.3LinzhiiteFeSi2Tet. 4/mmm (4/m 2/m 2/m) : P4/mmm
1.1.33.6HapkeiteFe2SiIso. m3m (4/m 3 2/m) : Pm3m
1.1.33.7LuobusaiteFe0.84Si2Orth. mmm (2/m 2/m 2/m) : Cmca
1.1.33.8ZangboiteTiFeSi2Orth. mmm (2/m 2/m 2/m) : Pbam
1.1.33.13MavlyanoviteMn5Si3Hex. 6/mmm (6/m 2/m 2/m) : P63/mcm

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 NaquiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Shi, N.C., et al. (2010) Naquite, IMA 2010-010. CNMNC Newsletter, June 2010, p.579; Mineralogical Magazine: 74: 577-579.
Shi, N., Li, G., Bai, W., Xiong, M., Yang, J., Fang, Q., Ma, Z., Rong, H. (2012) Naquite, FeSi, a New Mineral Species from Luobusha, Tibet, Western China. Acta Geologica Sinica: 86: 533-538.
Ma, C., Lin, C., Bindi, L., Steinhardt, P.J. (2016) Discovery of new Al-Cu-Fe minerals in the Khatyrka CV3 meteorite. 79th Annual Meeting of the Meteoritical Society, PDF no. 6017. [http://www.hou.usra.edu/meetings/metsoc2016/pdf/6017.pdf]

Internet Links for NaquiteHide

Localities for NaquiteHide

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.
China
 
  • Shandong Province
    • Linyi Prefecture
Lei Zhao (1991): Geological Science and Technology Information 10(s1)
  • Tibet Autonomous Region
    • Shannan Prefecture (Lhokha Prefecture; Lhoka Prefecture)
      • Qusum Co. (Qusong Co.)
CNMNC Newsletter, June 2010,p.579. Min. Mag, 74,579; Shi, N., Li, G., Bai, W., Xiong, M., Yang, J., Fang, Q., Ma, Z., Rong, H. (2012): Naquite, FeSi, a New Mineral Species from Luobusha, Tibet, Western China. Acta Geologica Sinica, 86, 533-538.
  • Zhejiang Province
    • Lishui Prefecture
Xiongjian Hu (1991): Acta Mineralogica Sinica 1l(3), 285-289
Oman
 
  • Dhofar Governorate (Al Janubiyah Province)
Mahesh Anand, Lawrence A. Taylor, Mikhail A. Nazarov, J. Shu, H.K. Mao, and Russell J. Hemley (2004) Space weathering on airless planetary bodies: Clues from the lunar mineral hapkeite. PNAS 101:6847–6851
Russia
 
  • Eastern-Siberian Region
    • Krasnoyarsk Krai
      • Targhasa massif
L. N. Novoselova, A. Yu. Lyul (1986) Geochemical characteristics of iron silicides from Lower Cambrian reefal limestones, Krasnoyarsk. International Geology Review 28:114-118
  • Far-Eastern Region
    • Koriak Autonomous Okrug
      • Koryak Upland (Koriak; Koriakskhiye)
        • Iomrautvaam Massif
          • Chetkinvaiam tectonic melange
            • Khatyrka river
              • Listvenitovyi stream
Ma, C., Lin, C., Bindi, L., Steinhardt, P.J. (2016): Discovery of new Al-Cu-Fe minerals in the Khatyrka CV3 meteorite. 79th Annual Meeting of the Meteoritical Society, PDF no. 6017. [http://www.hou.usra.edu/meetings/metsoc2016/pdf/6017.pdf]
  • Urals Region
    • Middle Urals
      • Sverdlovskaya Oblast'
        • Isovsky District
Pavel M. Kartashov collection, M. Generalov analytical data (1997)
Ukraine
 
  • Donetsk (Donets'k) Oblast'
    • Donets Region (Donetsk)
      • Zachativsk station
American Mineralogist 54:1737
USA
 
  • Michigan
    • Livingston Co.
Essene, E.J., Fisher, D.C. (1986): Lightning Strike Fusion: Extreme Reduction and Metal-Silicate Liquid Immiscibility. Science: 234(4773): 189-193
Mineral and/or Locality  
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