UM1989-24-S:CuFeZn
A material that is NOT an approved mineral species
This page is currently not sponsored. Click here to sponsor this page.
Formula:
(Zn,Fe,Cu)S
Colour:
black (Chinese material)
Lustre:
Metallic
Hardness:
3½ - 4
Said not to be identical with sphalerite.
Co-desribed with coexisting phase similar to 'Unnamed (Cu-Zn-In Sulphide)'; also associated are roquesite, sakuraiite, kesterite, and indian sphalerite.
Forms dendritic aggregates within chalcopyrite.
A similar mineral of Inner Mongolia occurs in skarn-embedded veins (2-3 cm wide), rarely, in form aggregated anhedral grains, localized in interstices between chalcopyrite and sphalerite. The Cu distribution is likely to be homogenous.
Note: it is not sure, if the Japan material is systematically identical to the Chinese one.
Co-desribed with coexisting phase similar to 'Unnamed (Cu-Zn-In Sulphide)'; also associated are roquesite, sakuraiite, kesterite, and indian sphalerite.
Forms dendritic aggregates within chalcopyrite.
A similar mineral of Inner Mongolia occurs in skarn-embedded veins (2-3 cm wide), rarely, in form aggregated anhedral grains, localized in interstices between chalcopyrite and sphalerite. The Cu distribution is likely to be homogenous.
Note: it is not sure, if the Japan material is systematically identical to the Chinese one.
Unique Identifiers
Mindat ID:
51646
Long-form identifier:
mindat:1:1:51646:4
GUID
(UUID V4):
(UUID V4):
ba3103f1-2dfa-41ac-adab-4df390e51990
Physical Properties of UM1989-24-S:CuFeZn
Metallic
Transparency:
Opaque
Comment:
Chinese material
Colour:
black (Chinese material)
Hardness:
3½ - 4 on Mohs scale
Comment:
Chinese material
Optical Data of UM1989-24-S:CuFeZn
Anisotropism:
strong (Japan); weak, dark gray to gray with a weak bluish tint (to brown) (China)
Reflectivity:
Wavelength | R |
---|---|
405nm | 19.80% |
436nm | 19.65% |
480nm | 19.01% |
526nm | 18.85% |
546nm | 18.23% |
589nm | 17.80% |
644nm | 17.31% |
656nm | 16.10% |
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 19.80%.
Colour in reflected light:
brownish gray with a violet tint (Japan); gray with a slight bluish tint (China)
Pleochroism:
Non-pleochroic
Comments:
reflectivity dana to Chinese material; slightly yellowish brown relative to sphalerite (China)
Chemistry of UM1989-24-S:CuFeZn
Mindat Formula:
(Zn,Fe,Cu)S
Elements listed:
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
3.1080 Å | (100) |
1.9060 Å | (50) |
1.628 Å | (30) |
1.240 Å | (20) |
1.103 Å | (20) |
1.040 Å | (20) |
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 UM1989-24-S:CuFeZn
mindat.org URL:
https://www.mindat.org/min-51646.html
Please feel free to link to this page.
Please feel free to link to this page.
Search Engines:
Mineral Dealers:
References for UM1989-24-S:CuFeZn
Reference List:
Localities for UM1989-24-S:CuFeZn
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).
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.
All localities listed without proper references should be considered as questionable.
China | |
| Lei et al. (1991) +1 other reference |
Japan | |
| Ohta (1989) +1 other reference |