登录注册
Quick Links : Mindat手册The Rock H. Currier Digital LibraryMindat Newsletter [Free Download]
主页关于 MindatMindat手册Mindat的历史版权Who We Are联系我们于 Mindat.org刊登广告
捐赠给 MindatCorporate Sponsorship赞助板页已赞助的板页在 Mindat刊登 广告的广告商于 Mindat.org刊登广告
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe ElementsThe Rock H. Currier Digital LibraryGeologic Time
搜索矿物的性质搜索矿物的化学Advanced Locality Search随意显示任何一 种矿物Random Locality使用minID搜索邻近产地Search Articles搜索词汇表更多搜索选项
搜索:
矿物名称:
地区产地名称:
关键字:
 
Mindat手册添加新照片Rate Photos产区编辑报告Coordinate Completion Report添加词汇表项目
Mining Companies统计会员列表Mineral MuseumsClubs & Organizations矿物展及活动The Mindat目录表设备设置The Mineral Quiz
照片搜索Photo GalleriesSearch by Color今天最新的照片昨天最新的照片用户照片相集过去每日精选照片相集Photography

Niobocarbide

A valid IMA mineral species
This page is currently not sponsored. Click here to sponsor this page.
Hide all sections | Show all sections

About NiobocarbideHide

Formula:
(Nb,Ta)C
Colour:
Bronze to straw-yellow
Lustre:
Metallic
Hardness:
8
Crystal System:
Isometric
Name:
Named in allusion to its composition, being comprised of NIOBium and carbon, as a CARBIDE.
Isostructural with:
The Nb analogue of tantalcarbide.

Unique combination of elements: the only Nb-C mineral known.

Exact type locality uncertain (possibly the Avrorinskii placer).


Unique IdentifiersHide

Mindat ID:
7196
Long-form identifier:
mindat:1:1:7196:9
GUID
(UUID V4):
cbf7f6df-7d18-4881-9782-4f2250999446

IMA Classification of NiobocarbideHide

Approved
IMA Formula:
NbC
Approval year:
1995
First published:
1997

Classification of NiobocarbideHide

1.BA.20

1 : ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides)
B : Metallic Carbides, Silicides, Nitrides, Phosphides and Hydrides
A : Carbides
1.1.29.1

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

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference
NcbIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of NiobocarbideHide

Metallic
Transparency:
Opaque
Colour:
Bronze to straw-yellow
Hardness:
Hardness:
VHN50=1850 - 1900 kg/mm2 - Vickers
Cleavage:
None Observed

Optical Data of NiobocarbideHide

Type:
Isotropic
Reflectivity:
WavelengthR
400nm24.0%
420nm26.2%
440nm28.6%
460nm31.8%
480nm33.9%
500nm34.4%
520nm36.2%
540nm38.5%
560nm41.0%
580nm45.1%
600nm48.2%
620nm49.4%
640nm51.5%
660nm52.8%
680nm53.6%
700nm54.8%

Reflectance graph
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 54.8%.
Colour in reflected light:
Light cream to pink cream

Chemistry of NiobocarbideHide

Mindat Formula:
(Nb,Ta)C

Crystallography of NiobocarbideHide

Crystal System:
Isometric
Class (H-M):
m3m (4/m 3 2/m) - Hexoctahedral
Space Group:
Fm3m
Cell Parameters:
a = 4.45 Å
Unit Cell V:
88.1 ų
Z:
4
Morphology:
Octahedrons and cubo-octahedrons.

Crystal StructureHide

Load
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Show
Big Balls | Small Balls | Just Balls | Spacefill
Polyhedra Off | Si Polyhedra | All Polyhedra
Remove metal-metal sticks
Display Options
Black Background | White Background
Perspective On | Perspective Off
2D | Stereo | Red-Blue | Red-Cyan
View
CIF File    Best | x | y | z | a | b | c
Rotation
Stop | Start
Labels
Console Off | On | Grey | Yellow
IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0011360NiobocarbideWyckoff R W G (1963) Second edition. Interscience Publishers, New York, New York rocksalt structure Crystal Structures 1 85-23719630293
0018165NiobocarbideBecker K, Ebert F (1925) Die Kristallstrukturen einiger binaerer Carbide und Nitride. _cod_database_code 1011323 Zeitschrift fur Physik 31 268-27219250293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
2.56 Å(100)
2.22 Å(90)
1.574 Å(80)
1.343 Å(80)
1.289 Å(70)
1.115 Å(30)

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Near-surface Processes
26 : Hadean detrital minerals

Type Occurrence of NiobocarbideHide

General Appearance of Type Material:
Cubic and octahedral crystals and as rounded grains to 0.2 mm.
Place of Conservation of Type Material:
Fersman Mineralogical Museum, Moscow, Russia, 88657.
Geological Setting of Type Material:
PGM-gold placer.
Associated Minerals at Type Locality:

Synonyms of NiobocarbideHide

Other Language Names for NiobocarbideHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
6 photos of Niobocarbide associated with TantalcarbideTaC

Related Minerals - Strunz-mindat GroupingHide

1.BA.05CoheniteFe3COrth. mmm (2/m 2/m 2/m)
1.BA.10Haxonite(Fe,Ni)23C6Iso. m3m (4/m 3 2/m) : Fm3m
1.BA.10Isovite(Cr,Fe)23C6Iso. m3m (4/m 3 2/m) : Fm3m
1.BA.15TongbaiteCr3C2Orth. mmm (2/m 2/m 2/m) : Pnma
1.BA.20Khamrabaevite(Ti,V,Fe)CIso. m3m (4/m 3 2/m) : Fm3m
1.BA.20TantalcarbideTaCIso. m3m (4/m 3 2/m) : Fm3m
1.BA.25QusongiteWCHex. 6 m2 : P6m2
1.BA.30YarlongiteCr4Fe4NiC4Hex. 6mm : P63mc
1.BA.35EdscottiteFe5C2Mon. 2/m : B2/b

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.

Internet Links for NiobocarbideHide

References for NiobocarbideHide

Localities for NiobocarbideHide

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 references and 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 (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
Russia (TL)
 
  • Sverdlovsk Oblast
    • Nizhnii Tagil
      • Baranchinsky Massif
        • Aktai River
Novgorodova et al. (1997)
 
矿物 and/or 产地  
Mindat Discussions Facebook Logo Instagram Logo Discord Logo
版权所有© mindat.org1993年至2024年,除了规定的地方。 Mindat.org全赖于全球数千个以上成员和支持者们的参与。
隐私政策 - 条款和条款细则 - 联络我们 - Report a bug/vulnerability Current server date and time: 2024.3.29 06:47:29 Page updated: 2024.3.18 00:36:52
Go to top of page