Yarlongite Mineral Data

[Newest Minerals] [Minerals for Sale] [Educational Articles] [About Us] [Image Gallery]
John Betts - Fine Minerals
Classic minerals, out-of-print books & magazines, plus informative articles for collectors

General Yarlongite Information

Chemical Formula:

(Cr4Fe4Ni)C4

Composition:

Molecular Weight = 538.11 gm

Chromium 38.65 % Cr

Iron 41.51 % Fe

Nickel 10.91 % Ni

Carbon 8.93 % C

______

100.00 %

Empirical Formula:

Cr₄Fe⁰⁺₄NiC₄

Environment:

Hand picked from a large heavy mineral processed sample of chromitite ore.

IMA Status:

Approved IMA 2007 (Dana # Added)

Locality:

Luobusa mine, Qusong County, Tibet, China Link to MinDat.org Location Data.

Name Origin:

Commission on New Minerals, Nomenclature and Classification (CNMNC)

Synonym:

IMA2007-035

Search for Yarlongite Images

Images:

Image not yet available on Webmineral.com

Try searching images.google.com or Mindat Picture Gallary for mineral pictures. Caution: The images retrieved may not be appropriate.

Yarlongite Crystallography

Axial Ratios:

a:c = 1:0.23865

Cell Dimensions:

a = 18.839, c = 4.496, Z = 11; V = 1,381.89 Den(Calc)= 7.11

Crystal System:

Hexagonal - Dihexagonal PyramidalH-M Symbol (6mm) Space Group: P 6₃mc

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 6.92(1), 2.023(0.98), 3.596(0.55),1.825(0.47), 1.798(0.45), 2.493(0.36), 4.53(0.35), 1.998(0.32),

Physical Properties of Yarlongite

Cleavage:

{001} Perfect

Color:

Steel gray.

Diaphaneity:

Opaque

Fracture:

Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments.

Habit:

Irregular Grains - Occurs as splotchy, anhedral crystals forming inclusions in other minerals or rocks.

Hardness:

5.5-6 - Knife Blade-Orthoclase

Luster:

Metallic

Calculated Properties of Yarlongite

Electron Density:

Bulk Density (Electron Density)=6.66 gm/cc
note: Specific Gravity of Yarlongite =7.11 gm/cc.

Fermion Index:

Fermion Index = 0.04
Boson Index = 0.96

Photoelectric:

PE_Yarlongite= 26.19 barns/electron
U=PE_Yarlongite x rElectron Density= 174.40 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Yarlongite is Not Radioactive

Yarlongite Classification

Dana Class:

01.01.26.01 (01)Native Elements

(01.01)with metallic elements other than the platinum group

(01.01.26)Dana Group

01.01.26.01 Yarlongite! (Cr4Fe4Ni)C4 P 6₃mc 6mm

Strunz Class:

01.BA.30 01 - ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides)

01.B - Metallic Carbides, Silicides, Nitrides and Phosphides

01.BA -Carbides

01.BA.30 Yarlongite! (Cr4Fe4Ni)C4 P 6₃mc 6mm

Other Yarlongite Information

References:

PHYS. PROP.(ACTA GEOLOGICA SINICA)

See Also:

Links to other databases for Yarlongite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - Google Images
4 - Google Scholar
5 - MinDAT
6 - MinMax(Deutsch)
7 - MinMax(English)
8 - Mineralienatlas (Deutsch)
9 - QUT Mineral Atlas
10 - Ruff.Info

Search for Yarlongite using:

[ALTAVISTA] [AOL] [All-The-Web] [HotBot] [Ixquick] [MAMMA] [MSN.COM] [Netscape] [Scirus] [Teoma] [Wikipedia] [YAHOO]

Visit our Advertisers for Yarlongite :

AA Mineral Specimens

B & L Fine Minerals

Crystalarium.com

Dan Weinrich Fine Minerals

Dan Weinrich Auctions

Dakota Matrix

Desert Winds Gems and Minerals

John Betts Fine Minerals

Mason's Minerals

Mineral News

Mineral of the Month Club

Wrights Rock Shop

Translate Yarlongite Mineral Data :

Ask about Yarlongite here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Español

Print or Cut-and-Paste your Yarlongite Specimen Label here :

Yarlongite

(Cr4Fe4Ni)C4
Dana No: 01.01.26.01 Strunz No: 01.BA.30
Locality:

Notes: