Unnamed (Cu-Fe Sulphide III)
This page is currently not sponsored. Click here to sponsor this page.
Formula:
CuFe2S4
Colour:
Light yellow with brownish tint
Lustre:
Metallic
Hardness:
5 - 5½
Specific Gravity:
4.524 (Calculated)
Crystal System:
Monoclinic
"Enclosed predominantly in chalcopyrite, probably replacing it, and occurs in later carbonate veinlets together with redeposited sulfides." Suggested to have formed as a result of low temperature processes involving metamorphic hydrothermal solutions (Orsoev et al., 2016).
Compare also the Unnamed (Fe3+-analogue of Fletcherite).
Compare also the Unnamed (Fe3+-analogue of Fletcherite).
Unique Identifiers
Mindat ID:
51492
Long-form identifier:
mindat:1:1:51492:5
Physical Properties of Unnamed (Cu-Fe Sulphide III)
Metallic
Colour:
Light yellow with brownish tint
Hardness:
5 - 5½ on Mohs scale
Density:
4.524 g/cm3 (Calculated)
Chemistry of Unnamed (Cu-Fe Sulphide III)
Mindat Formula:
CuFe2S4
Element Weights:
Elements listed:
Crystallography of Unnamed (Cu-Fe Sulphide III)
Crystal System:
Monoclinic
Cell Parameters:
a = 6.260(4) Å, b = 5.39(1) Å, c = 13.19(1) Å
β = 94.88(7)°
β = 94.88(7)°
Ratio:
a:b:c = 1.161 : 1 : 2.447
Unit Cell V:
443 ų
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 4.150 Å | (10) |
| 3.559 Å | (4) |
| 3.020 Å | (4) |
| 2.560 Å | (3) |
| 2.500 Å | (3) |
| 2.340 Å | (3) |
| 1.817 Å | (3) |
| 1.489 Å | (3) |
Other Information
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 Unnamed (Cu-Fe Sulphide III)
mindat.org URL:
https://www.mindat.org/min-51492.html
Please feel free to link to this page.
Please feel free to link to this page.
Search Engines:
Mineral Dealers:
References for Unnamed (Cu-Fe Sulphide III)
Localities for Unnamed (Cu-Fe Sulphide III)
symbol to view information about a locality.
The Locality List
- 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).
All localities listed without proper references should be considered as questionable.
Russia | |
| Orsoev et al. (2016) |
