Tongxinite Mineral Data (original) (raw)

General Tongxinite Information

Help on Chemical Formula: Chemical Formula:

Cu2Zn

Help on Composition: Composition:

Molecular Weight = 192.48 gm

Zinc 33.97 % Zn

Copper 66.03 % Cu

______

100.00 %

Help on Empirical Formula: Empirical Formula:

Cu2Zn

Help on Environment: Environment:

Silicified oxidized zone in Cu ore deposits.

Help on IMA Status: IMA Status:

Not Submitted IMA

Help on Locality: Locality:

Yulong ore district and Malasondo district, Tibet. Link to MinDat.org Location Data.

Help on Name Origin: Name Origin:

Named for the composition (tong=copper, xin=zinc).

Tongxinite Image

Click Here for Larger Tongxinite Image in a New Browser Window Images:

Click Here for Larger Tongxinite Image Tongxinite Comments: Tiny nugget with sorosite in a geletin capsule. Location: Newjansk, Ural, Russia.Scale: Not given. © Diederik Visser

Tongxinite Crystallography

Help on Cell Dimensions: Cell Dimensions:

a = 7.735, Z = 12; V = 462.79 Den(Calc)= 8.29

Help on Crystal System: Crystal System:

IsometricSpace Group: Unk

Help on X Ray Diffraction: X Ray Diffraction:

By Intensity(I/Io): 2.1(1), 2.153(0.8), 1.815(0.7),1.849(0.7),

Physical Properties of Tongxinite

Help on Color: Color:

Golden yellow.

Help on Diaphaneity: Diaphaneity:

Opaque

Help on Habit: Habit:

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

Help on Habit: Habit:

Microscopic Crystals - Crystals visible only with microscopes.

Help on Habit: Habit:

Tarnishes - Freshly fractured surfaces form a surface oxidation film

Help on Luster: Luster:

Metallic

Optical Properties of Tongxinite

Help on RL Color: RL Color:

Gold colored, tarnishing blue.

Help on Reflectivity Reflectivity

Standardized Intensity (100%) Reflection Spectra of Tongxinite in Air

λ R ∑ R(λ)
480 nm 41.12
500 nm 46.60
520 nm 49.02
540 nm 56.63
560 nm 58.00
580 nm 61.45
600 nm 65.10
620 nm 68.80
640 nm 73.53
660 nm 77.50

Calculated Relative Intensity Colors of Tongxinite in Air

RelativeIntensity 0% 30% 60% 90% 100% 120% 150% 180% 210%
R

Calculated Properties of Tongxinite

Help on Electron Density: Electron Density:

Bulk Density (Electron Density)=7.58 gm/cc
note: Specific Gravity of Tongxinite =8.29 gm/cc.

Help on Fermion Index: Fermion Index:

Fermion Index = 0.01
Boson Index = 0.99

Help on Photoelectric: Photoelectric:

PETongxinite = 48.02 barns/electron
U=PETongxinite x rElectron Density= 363.96 barns/cc.

Help on Radioactivity: Radioactivity:

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

Tongxinite Classification

Help on Dana Class: Dana Class:

01.00.00.00 (01)Native Elements

(01.00)Without Dana Classification Numbers

(01.00.00)Alloys

01.00.00.00 Antitaenite* gamma-Fe3Ni Unk Cubic

01.00.00.00 Goldamalgam* (Au,Ag)Hg I m3m 4/m 3 2/m

01.00.00.00 IMA2007-036 TiFeSi2 Pbam 2/m 2/m 2/m

01.00.00.00 Rhenium* Re P 63/mmc 6/m 2/m 2/m

01.00.00.00 Tantalum* Ta I m3m 4/m 3 2/m

01.00.00.00 Titanium* Ti P 63/mmc 6/m 2/m 2/m

01.00.00.00 Tongxinite* Cu2Zn Unk Cubic

Help on Strunz Class: Strunz Class:

01.AB.10b 01 - ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides)

01.A - Metals and Intermetallic Alloys

01.AB -Zinc-brass family (Cu-Zn alloys)

01.AB.10b Danbaite CuZn2 Unk Cubic

01.AB.10b Tongxinite* Cu2Zn Unk Cubic

Other Tongxinite Information

Help on References: References:

NAME( AmMin, V85, p264) PHYS. PROP.(AmMin, V85, p264) OPTIC PROP.(AmMin, V85, p264)

Help on See Also: See Also:

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

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

Tongxinite

Cu2Zn
Dana No: 01.00.00.00 Strunz No: 01.AB.10b
Locality:

Notes: