Guangyuanite
A valid IMA mineral species
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Formula:
Pb3Cl3(Se4+O3)(OH)
Colour:
pale yellow-brown
Lustre:
Vitreous
Hardness:
3
Specific Gravity:
7.63 (Calculated)
Crystal System:
Orthorhombic
Name:
Named in honor of the late Chinese mineralogist, Prof. Chen Guangyuan (1920-1999). Prof. Chen obtained his Degree of Licentiate from Uppsala University of Sweden in 1951 and became a teacher and researcher at Peking University between 1951 and 1952 and later at the China University of Geosciences in Beijing from 1952 to 1999. Prof. Chen is regarded as the pioneer and leader for both teaching and research in genetic and exploration mineralogy in China from 1950’s to 1980’s.
Unique Identifiers
Mindat ID:
470692
Long-form identifier:
mindat:1:1:470692:8
IMA Classification of Guangyuanite
Approved
IMA Formula:
Pb2+3Cl3(Se4+O3)(OH)
Approval year:
2023
Approval history:
IMA No. 2022-124
Classification of Guangyuanite
4.JG.
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
J : Arsenites, antimonites, bismuthites, sulfites, selenites, tellurites; iodates
G : Selenites with additional anions, without H2O
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
J : Arsenites, antimonites, bismuthites, sulfites, selenites, tellurites; iodates
G : Selenites with additional anions, without H2O
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 |
|---|---|---|
| Gyn | 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 Guangyuanite
Vitreous
Transparency:
Transparent
Colour:
Pale yellow-brown
Streak:
White
Hardness:
3 on Mohs scale
Tenacity:
Brittle
Cleavage:
None Observed
Parting:
none
Density:
7.63 g/cm3 (Calculated)
Chemistry of Guangyuanite
Mindat Formula:
Pb3Cl3(Se4+O3)(OH)
Element Weights:
Crystallography of Guangyuanite
Crystal System:
Orthorhombic
Class (H-M):
mmm(2/m2/m2/m) - Dipyramidal
Space Group:
Pnma
Setting:
Pnma
Cell Parameters:
a = 11.0003(5) Å, b = 10.6450(5) Å, c = 7.7902(3) Å
Ratio:
a:b:c = 1.033 : 1 : 0.732
Unit Cell V:
912.22 ų (Calculated from Unit Cell)
Z:
4
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 5.489 Å | (64) |
| 4.150 Å | (62) |
| 3.235 Å | (84) |
| 3.178 Å | (83) |
| 3.149 Å | (100) |
| 2.787 Å | (48) |
| 2.523 Å | (71) |
| 1.957 Å | (48) |
Type Occurrence of Guangyuanite
General Appearance of Type Material:
equant crystals
Place of Conservation of Type Material:
collections of (1) the University of Arizona Alfie Norville Gem & Mineral Museum, 115 N Church Ave Ste 121, Tucson, AZ 85701, USA, catalogue no. 22714 (holotype), and (2) the RRUFF Project, deposition no. R210013 (cotype)
Geological Setting of Type Material:
Epithermal deposit consisting of a single selenide vein hosted by sandstones and shales.
Associated Minerals at Type Locality:
Other Language Names for Guangyuanite
Dutch:Guangyuaniet
German:Guangyuanit
Related Minerals - Strunz-mindat Grouping
| 4.JG. | Prewittite | KPb1.5ZnCu6(SeO3)2O2Cl10 |
| 4.JG. | Masaitisite | KCu5O2(SeO3)2Cl3 |
| 4.JG. | Wangkuirenite | Pb3Cl2(SeO3)2 |
| 4.JG.05 | Georgbokiite | Cu5(SeO3)2O2Cl2 |
| 4.JG.05 | Parageorgbokiite | Cu5(SeO3)2O2Cl2 |
| 4.JG.10 | Chloromenite | Cu9(SeO3)4O2Cl6 |
| 4.JG.15 | Sofiite | Zn2(SeO3)Cl2 |
| 4.JG.20 | Ilinskite | (Na,K)Cu5(SeO3)2O2Cl3 |
| 4.JG.25 | Francisite | Cu3Bi(SeO3)2O2Cl |
| 4.JG.30 | Derriksite | Cu4(UO2)(SeO3)2(OH)6 |
| 4.JG.35 | Burnsite | KCdCu2+7(SeO3)2O2Cl9 |
| 4.JG.40 | Allochalcoselite | Cu+PbCu2+5(SeO3)2Cl5O2 |
| 4.JG.45 | Nicksobolevite | Cu7(SeO3)2O2Cl6 |
| 4.JG.50 | Plumboselite | Pb3O2(SeO3) |
| 4.JG.55 | Sarrabusite | Pb5CuCl4(SeO3)4 |
Other Information
Notes:
insoluble in water and hydrochloric acid.
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 Guangyuanite
mindat.org URL:
https://www.mindat.org/min-470692.html
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References for Guangyuanite
Localities for Guangyuanite
Showing 1 localities.
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.
Bolivia (TL) | |
| Bosi et al. (2023) +1 other reference |
