Xanthoconite (original) (raw)
A valid IMA mineral species - grandfathered
About XanthoconiteHide
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Colour:
Red-orange, yellow-orange, red-brown, brown
Crystal System:
Monoclinic
Name:
From Greek "xanthos", yellow, and "konis", powder, for the yellow colour of the streak.
The monoclinic dimorph of proustite.
The xanthoconite -> proustite transition occurs at 180-202°C (Roland, 1970).
Unique IdentifiersHide
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Long-form identifier:
mindat:1:1:4330:0
703fca02-2f0e-48b8-b7c0-543571772474
IMA Classification of XanthoconiteHide
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Approved, 'Grandfathered' (first described prior to 1959)
Type description reference:
Classification of XanthoconiteHide
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2.GA.10
2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
G : Sulfarsenites, sulfantimonites, sulfbismuthites
A : Neso-sulfarsenites, etc. without additional S
3.4.2.1
3 : SULFOSALTS
4 : ø = 3
5.2.4
5 : Sulphosalts - Sulpharsenites and Sulphobismuthites (those containing Sn, Ge,or V are in Section 6)
2 : Sulpharsenites etc. of Ag
Mineral SymbolsHide
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As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference |
|---|---|---|
| Xcn | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Pronunciation of XanthoconiteHide
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Pronunciation:
| Play | Recorded by | Country |
|---|---|---|
| Sorry, your browser doesn't support HTML5 audio. | Jolyon Ralph | United Kingdom |
Physical Properties of XanthoconiteHide
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Colour:
Red-orange, yellow-orange, red-brown, brown
Hardness:
VHN25=71 - 93 kg/mm2 - Vickers
Cleavage:
Distinct/Good
Distinct on {001}
Density:
5.54(14) g/cm3 (Measured) 5.53 g/cm3 (Calculated)
Optical Data of XanthoconiteHide
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Optical Extinction:
X ≃ c, Y ≃ a, Z = b
Reflectivity:
| Wavelength | R1 | R2 |
|---|---|---|
| 400nm | 33.7% | 37.1% |
| 420nm | 32.2% | 36.1% |
| 440nm | 30.7% | 35.1% |
| 460nm | 29.1% | 33.7% |
| 480nm | 27.6% | 32.1% |
| 500nm | 26.1% | 30.1% |
| 520nm | 24.8% | 28.5% |
| 540nm | 23.7% | 27.3% |
| 560nm | 22.7% | 26.3% |
| 580nm | 22.0% | 25.5% |
| 600nm | 21.5% | 24.8% |
| 620nm | 21.3% | 24.4% |
| 640nm | 21.0% | 24.1% |
| 660nm | 20.8% | 23.8% |
| 680nm | 20.6% | 23.6% |
| 700nm | 20.4% | 23.5% |
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 37.1%.
R1 shown in black, R2 shown in red
Comments:
Refractive indices = ~3.
Chemistry of XanthoconiteHide
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Crystallography of XanthoconiteHide
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Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Cell Parameters:
a = 11.99 Å, b = 6.26 Å, c = 17.08 Å
β = 110°
Ratio:
a:b:c = 1.915 : 1 : 2.728
Unit Cell V:
1,204.67 ų (Calculated from Unit Cell)
Morphology:
Tabular, laths, pyramids
Twinning:
{001}
pseudoorthorhombic twins
Crystal StructureHide
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| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0009336 | Xanthoconite | Engel P, Nowacki W (1968) Die kristallstruktur von Ag3AsS3 Acta Crystallographica B24 77-81 |  |
1968 | 0 | 293 | |
| 0014651 | Xanthoconite | Rosenstingl J, Pertlik F (1993) Neuberechnung der kristallstruktur von naturlichem und synthetischem monoklinen Ag3AsS3 (= xanthokon) nebst einer diskussion zur symmetrie Mitteilungen der Osterreichischen Mineralogischen Gesellschaft 138 9-16 | 1993 | synthetic | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder DiffractionHide
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Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 3.00 Å | (100) |
| 2.82 Å | (60) |
| 3.14 Å | (30) |
| 2.13 Å | (30) |
| 5.5 Å | (20) |
| 4.02 Å | (20) |
| 3.38 Å | (20) |
Geological EnvironmentHide
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Geological Setting:
Hydrothermal veins
Type Occurrence of XanthoconiteHide
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Reference:
Breithaupt, A. (1840) Xanthokon, ein neues Glied der Ordnung der Blenden. Journal für Praktische Chemie, 20, 67-69.
Synonyms of XanthoconiteHide
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Other Language Names for XanthoconiteHide
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Relationship of Xanthoconite to other SpeciesHide
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Other Members of this group:
Structurally related to group(s):
Common AssociatesHide
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Associated Minerals Based on Photo Data:
Related Minerals - Strunz-mindat GroupingHide
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| 2.GA. | Arsiccioite | AgHg2Tl(As,Sb)2S6 | Tet. 42_m_ : I_42_m |
|---|---|---|---|
| 2.GA. | Eckerite | Ag2CuAsS3 | Mon. 2/m : _B_2/b |
| 2.GA. | Pyradoketosite | Ag3SbS3 | Mon. 2/m |
| 2.GA.05 | Proustite | Ag3AsS3 | Trig. 3_m_ _(_32/m ) : R_3_c |
| 2.GA.05 | Pyrargyrite | Ag3SbS3 | Trig. 3_m_ : R_3_c |
| 2.GA.10 | Pyrostilpnite | Ag3SbS3 | Mon. 2/m : _P_21/b |
| 2.GA.15 | Samsonite | Ag4MnSb2S6 | Mon. 2/m : _P_21/m |
| 2.GA.20 | Skinnerite | Cu3SbS3 | Mon. 2/m : _P_21/b |
| 2.GA.20 | Wittichenite | Cu3BiS3 | Orth. 222 : _P_212121 |
| 2.GA.20 | Bytízite | Cu3SbSe3 | Orth. m m m _(_2/_m_2/_m_2/m ) : P n m a |
| 2.GA.25 | Lapieite | NiCuSbS3 | Orth. 222 : _P_212121 |
| 2.GA.25 | Mückeite | NiCu(Bi,Sb)S3 | Orth. 222 : _P_212121 |
| 2.GA.25 | Malyshevite | PdCuBiS3 | Orth. m m m _(_2/_m_2/_m_2/m ) : P m m m |
| 2.GA.25 | Lisiguangite | PtCuBiS3 | Orth. 222 : _P_212121 |
| 2.GA.25 | Roterbärite | PdBiCuSe3 | Orth. 222 : _P_212121 |
| 2.GA.30 | Aktashite | Cu6Hg3As4S12 | Trig. 3 : _R_3 |
| 2.GA.30 | Gruzdevite | Cu6Hg3Sb4S12 | Trig. 3 : _R_3 |
| 2.GA.30 | Nowackiite | Cu6Zn3As4S12 | Trig. 3 : _R_3 |
| 2.GA.30 | Zhengminghuaite | Cu6Fe3As4S12 | Trig. 3 : _R_3 |
| 2.GA.35 | Laffittite | AgHgAsS3 | Mon. 2/m |
| 2.GA.40 | Routhierite | Tl(Cu,Ag)(Hg,Zn)2(As,Sb)2S6 | Tet. 42_m_ : I_42_m |
| 2.GA.40 | Stalderite | Tl(Cu,Ag)(Zn,Fe,Hg)2(As,Sb)2S6 | Tet. 42_m_ : I_42_m |
| 2.GA.40 | Ralphcannonite | AgZn2TlAs2S6 | Tet. 42_m_ : I_42_m |
| 2.GA.40 | Ferrostalderite | CuFe2TlAs2S6 | Tet. 42_m_ : I_42_m |
| 2.GA.40 | Unnamed (Ag-Fe endmember of Routhierite Group) | AgFe2TlAs2S6 | |
| 2.GA.45 | Erniggliite | Tl2SnAs2S6 | Trig. 3 : _P_3 |
| 2.GA.50 | Bournonite | PbCuSbS3 | Orth. m _m_2 : P m _n_21 |
| 2.GA.50 | Seligmannite | PbCuAsS3 | Orth. m m m _(_2/_m_2/_m_2/m ) : P m m n |
| 2.GA.50 | Součekite | PbCuBi(S,Se)3 | Orth. m _m_2 |
| 2.GA.50 | Unnamed (Pb-Cu-Bi Selenide) | PbCuBiSe3 | |
| 2.GA.50 | Cerromojonite | CuPbBiSe3 | Orth. |
| 2.GA.55 | Eldragónite | Cu6BiSe4(Se2) | Orth. m m m _(_2/_m_2/_m_2/m ) |
Other InformationHide
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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 XanthoconiteHide
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References for XanthoconiteHide
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Localities for XanthoconiteHide
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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.
Locality ListHide
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- 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.