Cameronite Mineral Data

Cameronite Mineral Data

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General Cameronite Information

Chemical Formula:

AgCu7Te10

Composition:

Molecular Weight = 1,828.69 gm

Copper 24.32 % Cu

Silver 5.90 % Ag

Tellurium 69.78 % Te

______

100.00 %

Empirical Formula:

AgCu₇Te₁₀

Environment:

Hydrothermal deposits in telluride-rich ores.

IMA Status:

Approved IMA 1986

Locality:

Good Hope mine, Vulcan, Colorado, USA. Link to MinDat.org Location Data.

Name Origin:

Named for Eugene N. Cameron (1910-), U.S. Economic geologist.

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Cameronite Crystallography

Axial Ratios:

a:c = 1:3.32304

Cell Dimensions:

a = 12.695, c = 42.186, Z = 16; V = 6,798.82 Den(Calc)= 7.15

Crystal System:

Tetragonal - Ditetragonal DipyramidalH-M Symbol (4/m 2/m 2/m) Space Group: P 4₁/mmc

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

By Intensity(I/I_o): 2.118(1), 3.456(1), 1.804(0.6),

Physical Properties of Cameronite

Cleavage:

None

Color:

Black, Gray.

Diaphaniety:

Opaque

Fracture:

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

Habit:

Anhedral Grains - Granular minerals without the expression of crystal shapes

Habit:

Microscopic Crystals - Crystals visible only with microscopes.

Hardness:

3.5-4 - Copper Penny-Fluorite

Luster:

Metallic

Streak:

black

Optical Properties of Cameronite

RL Anisotrophism:

Distinct, medium gray to slate-gray to brownish gray.

RL Pleochroism:

Slight, pale gray to pale brownish gray.

Reflectivity

**Standardized Intensity (100%) Reflection Spectra of Cameronite in Air**
λ	R₁	R₂	∑ R₁(λ)	∑ R₂(λ)
400 nm	23.60	28.40
420 nm	25.60	30.10
440 nm	27.40	31.40
460 nm	28.90	32.50
480 nm	30.10	33.10
500 nm	31.00	33.60
520 nm	31.60	33.70
540 nm	32.10	33.80
560 nm	32.50	33.70
580 nm	32.80	33.60
600 nm	33.00	33.40
620 nm	33.10	33.20
640 nm	33.30	33.00
660 nm	33.40	32.70
680 nm	33.50	32.60
700 nm	33.60	32.30

**Calculated Relative Intensity Colors of Cameronite in Air**
Relative Intensity	0%	40%	80%	100%	120%	160%	200%	240%	280%	320%
R₁
R₂

Calculated Properties of Cameronite

Electron Density:

r_electron=6.02 gm/cc
note: r_Cameronite=7.15 gm/cc.

Fermion Index

Fermion Index = 0.05575
Boson Index = 0.94425

Photoelectric:

PE_Cameronite= 282.22 barns/electron
U=PE_Cameronite x r_electron=1,699.31 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Cameronite is Not Radioactive

Cameronite Classification

Dana Class:

2.16.20.1 (2)Sulfides - Including Selenides and Tellurides

(2.16)with miscellaneous formulae

(2.16.20)Dana Group

2.16.20.1 Cameronite AgCu7Te10 P 4₁/mmc 4/m 2/m 2/m

Strunz Class:

II/D.14-10 II - Sulfides and sulphosalts

II/D - Sulfides with metal: sulfur, selenium and tellurium < 1:1, Tellurides with Copper, Silver, Gold

II/D.14 - Cameronite series

II/D.14-10 Cameronite AgCu7Te10 P 4₁/mmc 4/m 2/m 2/m

II/D.14-20 Tarkianite! (Cu,Fe)(Re,Mo)4S8 F43m 4 3m

Other Cameronite Information

References:

NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(AntBidBlaNic1)

See Also:

Links to other databases for Cameronite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 -École des Mines de Paris

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

Cameronite

AgCu7Te10
Dana No: 2.16.20.1 Strunz No: II/D.14-10
Locality:

Notes: