Carlinite
A valid IMA mineral species
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Formula:
Tl2S
Colour:
Grey
Lustre:
Metallic
Hardness:
1½ - 2
Specific Gravity:
8.1
Crystal System:
Trigonal
Name:
Named for the Carlin gold deposit, Nevada, USA, type locality.
This page provides mineralogical data about Carlinite.
Unique Identifiers
Mindat ID:
901
Long-form identifier:
mindat:1:1:901:6
Similar Names
| Caolinite | A synonym of Kaolinite | |
| Carminite | A valid IMA mineral species - grandfathered | PbFe23+(AsO4)2(OH)2 |
| Carolinite | A synonym of Nepheline | |
| Caryinite | A valid IMA mineral species - grandfathered | (Na,Pb)(Ca,Na)CaMn22+(AsO4)3 |
| Catlinite | A variety of 'Argillite' | |
| Karelianite | A valid IMA mineral species | V23+O3 |
| Karelinite |
IMA Classification of Carlinite
Approved
IMA Formula:
Tl1+2S2-
Approval year:
1974
First published:
1975
Classification of Carlinite
2.BD.25
2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
B : Metal Sulfides, M: S > 1: 1 (mainly 2: 1)
D : With Hg, Tl
2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
B : Metal Sulfides, M: S > 1: 1 (mainly 2: 1)
D : With Hg, Tl
2.4.13.1
2 : SULFIDES
4 : AmBnXp, with (m+n):p = 2:1
2 : SULFIDES
4 : AmBnXp, with (m+n):p = 2:1
3.5.11
3 : Sulphides, Selenides, Tellurides, Arsenides and Bismuthides (except the arsenides, antimonides and bismuthides of Cu, Ag and Au, which are included in Section 1)
5 : Sulphides etc. of Hg and Tl
3 : Sulphides, Selenides, Tellurides, Arsenides and Bismuthides (except the arsenides, antimonides and bismuthides of Cu, Ag and Au, which are included in Section 1)
5 : Sulphides etc. of Hg and Tl
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference for Standard |
|---|---|---|
| Cni | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Carlinite
Metallic
Transparency:
Opaque
Colour:
Grey
Comment:
Oxidized surfaces become darker and duller.
Streak:
Dark grey to black
Hardness:
1½ - 2 on Mohs scale
Hardness:
VHN50=20.1 - 23.8 kg/mm2 - Vickers
Tenacity:
Sectile
Cleavage:
Perfect
(0001)
(0001)
Fracture:
Irregular/Uneven
Density:
8.1 g/cm3 (Measured) 8.55 g/cm3 (Calculated)
Optical Data of Carlinite
Anisotropism:
Moderate to distinct
Bireflectance:
Weak, but stronger along grain boundaries. Very weak in oil.
Reflectivity:
| Wavelength | R1 (%) | R2 (%) |
|---|---|---|
| 470nm | 39.6% | 41.3% |
| 546nm | 38.8% | 40.1% |
| 589nm | 39.2% | 40.6% |
| 650nm | 40.5% | 42.0% |
Graph shows reflectance levels at different wavelengths (in nm). Peak reflectance is 42.0%.
R1 shown in black, R2 shown in red
Colour in reflected light:
White with faint bluish cast.
Pleochroism:
Visible
Comments:
Brownish gray to bluish gray
Chemistry of Carlinite
Mindat Formula:
Tl2S
Elements listed:
Crystallography of Carlinite
Crystal System:
Trigonal
Class (H-M):
3 - Pyramidal
Space Group:
R3
Cell Parameters:
a = 12.12 Å, c = 18.17 Å
Ratio:
a:c = 1 : 1.499
Unit Cell V:
2310 ų
Z:
27
Morphology:
Small anhedral grains, poorly developed rhombohedral and tabular forms.
Crystal Structure
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Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0014029 | Carlinite | Giester G, Lengauer C L, Tillmanns E, Zemann J (2002) Tl2S: Re-determination of crystal structure and stereochemical discussion Journal of Solid State Chemistry 168 322-330 | 2002 | synthetic | 0 | 293 | |
| 0015553 | Carlinite | Man L I (1970) Determination of the structure of Tl2S by the electron diffraction method Soviet Physics Crystallography 15 399-403 | 1970 | synthetic | 0 | 293 | |
| 0014030 | Carlinite | Giester G, Lengauer C L, Tillmanns E, Zemann J (2002) Tl2S: Re-determination of crystal structure and stereochemical discussion Journal of Solid State Chemistry 168 322-330 | 2002 | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 3.030 Å | (100) |
| 2.290 Å | (3) |
| 2.020 Å | (3) |
| 1.749 Å | (3) |
| 2.712 Å | (1) |
| 1.681 Å | (1) |
| 1.513 Å | (1) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Near-surface Processes | |
| 23 : Subaerial aqueous alteration by non-redox-sensitive fluids (see also #47) | |
| High-? alteration and/or metamorphism | |
| 33 : Minerals deposited by hydrothermal metal-rich fluids (see also [#12]) |
Type Occurrence of Carlinite
General Appearance of Type Material:
Subhedral to anhedral grains ranging from about 5 to 500 µm in diameter. Most grains are irregular and slightly rounded with a few grains showing poorly defined rhombohedral and tabular form.
Place of Conservation of Type Material:
Department of Geology, Stanford University, Palo Alto, California, Epithermal Minerals Collection.
National Museum of Natural History, Washington, D.C., USA, number 132497.
National Museum of Natural History, Washington, D.C., USA, number 132497.
Geological Setting of Type Material:
Carlin type gold deposit.
Associated Minerals at Type Locality:
Synonyms of Carlinite
Other Language Names for Carlinite
Related Minerals - Strunz-mindat Grouping
| 2.BD. | Vrančiceite | Cu10Hg3S8 |
| 2.BD. | 'UM2004-33-S:AgCuHgSe' | (Ag,Cu)8Hg3(S,Se)7 |
| 2.BD.05 | Imiterite | Ag2HgS2 |
| 2.BD.10 | Gortdrumite | Cu24Fe2Hg9S23 |
| 2.BD.15 | Danielsite | (Cu,Ag)14HgS8 |
| 2.BD.15 | Balkanite | Cu9Ag5HgS8 |
| 2.BD.20 | Donharrisite | Ni3HgS3 |
| 2.BD.30 | Bukovite | (Cu3Fe)Σ4Tl2Se4 |
| 2.BD.30 | Thalcusite | Tl2Cu3FeS4 |
| 2.BD.30 | Murunskite | K2(Cu,Fe)4S4 |
| 2.BD.35 | Rohaite | (Tl,Pb,K)2Cu8.7Sb2S4 |
| 2.BD.40 | Chalcothallite | Tl2(Cu,Fe)6SbS4 |
| 2.BD.45 | Sabatierite | TlCu6Se4 |
| 2.BD.50 | Crookesite | Cu7(Tl, Ag)Se4 |
| 2.BD.55 | Brodtkorbite | Cu2HgSe2 |
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 Carlinite
mindat.org URL:
https://www.mindat.org/min-901.html
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References for Carlinite
Reference List:
Radtke, Arthur S., Dickson, Frank W. (1975) Carlinite, Tl2S, a new mineral from Nevada. American Mineralogist, 60 (7-8) 559-565
Localities for Carlinite
Showing 2 localities.
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.
USA | |
| Castor et al. (2004) |
| Radtke et al. (1975) +1 other reference |
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The
Carlin Gold Mine, Lynn Mining District, Eureka County, Nevada, USA