Raberite
This page is currently not sponsored. Click here to sponsor this page.
Thomas Raber
Formula:
Tl5Ag4As6SbS15
System:
Triclinic
Lustre:
Metallic
Hardness:
2½ - 3
Name:
Named in honour of Dr. Thomas Raber (b. 1966), a well-known mineral expert on the Lengenbach minerals for more than 20 years. He has analyzed several specimens from this deposit and has published many articles about Lengenbach minerals. He is currently (2012) Vice-President of the FGL (Forschungsgemeinschaft Lengenbach; literally: research community of Lengenbach)
This page provides mineralogical data about Raberite.
Classification of Raberite
Approved
Approval Year:
2012
Physical Properties of Raberite
Metallic
Diaphaneity (Transparency):
Opaque
Streak:
Dark brown-red
Hardness (Mohs):
2½ - 3
Tenacity:
Brittle
Chemical Properties of Raberite
Formula:
Tl5Ag4As6SbS15
IMA Formula:
Tl5Ag4As6SbS15
Analytical Data:
From type description:
Tl (39.55)(13) Ag (18.42)(8) Cu (0.06)(2) As (17.08)(7) Sb (5.61)(6) S (19.15)(11) total 99.87 wt.%
Crystallography of Raberite
Crystal System:
Triclinic
Class (H-M):
1 - Pinacoidal
Space Group:
P1
Cell Parameters:
a = 8.920(1) Å, b = 9.429(1) Å, c = 20.062(3) Å
α = 79.66(1)°, β = 88.84(1)°, γ = 62.72(1)°
α = 79.66(1)°, β = 88.84(1)°, γ = 62.72(1)°
Ratio:
a:b:c = 0.946 : 1 : 2.128
Unit Cell Volume:
V 1471.6 ų
Z:
2
X-Ray Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 3.580 | (100) |
| 3.506 | (58) |
| 3.281 | (73) |
| 3.017 | (54) |
| 3.001 | (98) |
| 2.657 | (51) |
| 2.636 | (46) |
| 2.591 | (57) |
Type Occurrence of Raberite
General Appearance of Type Material:
As euhedral crystals up to 150 μm across
Place of Conservation of Type Material:
Museum of Mineralogy of the Department of Geosciences, University of Padova, Italy, catalogue number MMP M11420
Empirical Formula:
Tl4.85Ag4.28Cu0.02As5.72Sb1.16S14.97 with 31 atoms per formula unit
Associated Minerals at Type Locality:
Other Names for Raberite
Name in Other Languages:
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.
References for Raberite
Reference List:
Bindi, L., Nestola, F., Guastoni, A., Peruzzo, L., Ecker, M. and Carampin, R. (2012): Raberite, Tl5Ag4As6SbS15, a new Tl-bearing sulfosalt from Lengenbach quarry, Binn valley , Switzerland: description and crystal structure. Mineralogical Magazine 76(5), 1153-1163.
Internet Links for Raberite
mindat.org URL:
https://www.mindat.org/min-42792.html
Please feel free to link to this page.
Please feel free to link to this page.
Search Engines:
External Links:
Mineral Dealers:
Localities for Raberite
This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the 
symbol to view information about a locality.
The symbol next to localities in the list
can be used to jump to that position on the map.
symbol to view information about a locality.
The symbol next to localities in the list
can be used to jump to that position on the map.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
Switzerland (TL) | |
| Bindi, L., Nestola, F., Guastoni, A., Peruzzo, L., Ecker, M. and Carampin, R. (2012): Raberite, Tl5Ag4As6SbS15, a new Tl-bearing sulfosalt from Lengenbach quarry, Binn valley, Switzerland: description and crystal structure. Mineralogical Magazine 76(5), 1153-1163. |
Lengenbach Quarry, Fäld, Binn Valley, Wallis, Switzerland