Khorixasite
A valid IMA mineral species - pending publication
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About Khorixasite
Formula:
(Bi0.67◻0.33)Cu(VO4)(OH)
Crystal System:
Monoclinic
Name:
Named for the Khorixas District, Namibia, that includes the type locality.
The Bi analogue of mottramite (compare also the discredited, Ca- and Bi-bearing mottramite variety "duhamelite").
Monoclinic-pseudoorthorhombic, closely related to the orthorhombic Adelite-Descloizite Group.
Chemically similar to namibite.
Monoclinic-pseudoorthorhombic, closely related to the orthorhombic Adelite-Descloizite Group.
Chemically similar to namibite.
Unique Identifiers
Mindat ID:
50346
Long-form identifier:
mindat:1:1:50346:0
IMA Classification of Khorixasite
Approved, Pending publication
IMA Formula:
(Bi3+0.67◻0.33)Cu2+(V5+O4)(OH)
Approval year:
2016
Classification of Khorixasite
8.BH.40
8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
H : With medium-sized and large cations, (OH,etc.):RO4 = 1:1
8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
H : With medium-sized and large cations, (OH,etc.):RO4 = 1:1
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 |
|---|---|---|
| Kho | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Chemistry of Khorixasite
Mindat Formula:
(Bi0.67◻0.33)Cu(VO4)(OH)
Element Weights:
Crystallography of Khorixasite
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P2/m
Setting:
P2/m
Cell Parameters:
a = 7.483(1) Å, b = 5.686(1) Å, c = 9.678(2) Å
β = 90.14(3)°
β = 90.14(3)°
Ratio:
a:b:c = 1.316 : 1 : 1.702
Unit Cell V:
411.78 ų (Calculated from Unit Cell)
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 5.041 Å | (35) |
| 3.499 Å | (25) |
| 3.162 Å | (48) |
| 2.960 Å | (100) |
| 2.514 Å | (72) |
| 2.141 Å | (23) |
| 1.737 Å | (32) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 7: Great Oxidation Event | <2.4 |
| 47a : [Near-surface hydration of prior minerals] | |
| 47e : [Vanadates, chromates, manganates] |
Type Occurrence of Khorixasite
Place of Conservation of Type Material:
Mineralogical collections of the Museum Victoria, Melbourne, Australia (registration number M53605)
Synonyms of Khorixasite
Other Language Names for Khorixasite
Dutch:Khorixasiet
German:Khorixasit
Relationship of Khorixasite to other Species
Structurally related to group(s):
| Adelite-Descloizite Group | A group of orthorhombic arsenates, vanadates, (rare) silicates and (very rare) phosphates. |
Common Associates
Associations Based on Photo Data:
| 6 photos of Khorixasite associated with Namibite | Cu(BiO)2(VO4)(OH) |
| 3 photos of Khorixasite associated with Beyerite | Ca(BiO)2(CO3)2 |
| 2 photos of Khorixasite associated with Cornetite | Cu3(PO4)(OH)3 |
| 2 photos of Khorixasite associated with 'Duhamelite' | (Pb,Bi,Ca)Cu(VO4)(OH,O) |
| 2 photos of Khorixasite associated with 'Chalcedony' | SiO2 |
| 1 photo of Khorixasite associated with Cuprite | Cu2O |
| 1 photo of Khorixasite associated with Mottramite | PbCu(VO4)(OH) |
| 1 photo of Khorixasite associated with Brochantite | Cu4(SO4)(OH)6 |
| 1 photo of Khorixasite associated with Clinobisvanite | Bi(VO4) |
| 1 photo of Khorixasite associated with Quartz | SiO2 |
Related Minerals - Strunz-mindat Grouping
| 8.BH. | Peterchinite | Zn3Zn2(OH)6As[O3(OH)3] |
| 8.BH. | Reznitskyite | CaMg(VO4)F |
| 8.BH. | Plumbogottlobite | PbMg(VO4)(OH) |
| 8.BH. | Cuprozheshengite | Pb4CuZn2(AsO4)2(PO4)2(OH)2 |
| 8.BH. | Zheshengite | Pb4ZnZn2(AsO4)2(PO4)2(OH)2 |
| 8.BH. | Crimsonite | PbFe3+2(PO4)2(OH)2 |
| 8.BH.05 | Thadeuite | Ca(Mg,Fe2+)3(PO4)2(OH,F)2 |
| 8.BH.10 | Panasqueiraite | CaMg(PO4)(OH) |
| 8.BH.10 | Isokite | CaMg(PO4)F |
| 8.BH.10 | Lacroixite | NaAl(PO4)F |
| 8.BH.10 | Arsenatrotitanite | NaTi(AsO4)O |
| 8.BH.10 | Maxwellite | NaFe3+(AsO4)F |
| 8.BH.10 | Durangite | NaAl(AsO4)F |
| 8.BH.10 | Kononovite | NaMg(SO4)F |
| 8.BH.15 | Drugmanite | Pb2Fe3+(PO4)(PO3OH)(OH)2 |
| 8.BH.20 | Nigelcookite | PbFe2+2V3+2(PO4)3(OH)3 |
| 8.BH.20 | Plumbojohntomaite | PbFe2+2Fe3+2(PO4)3(OH)3 |
| 8.BH.20 | Cirrolite | Ca3Al2(PO4)3(OH)3 (?) |
| 8.BH.20 | Penikisite | Ba(Mg,Fe2+,Ca)2Al2(PO4)3(OH)3 |
| 8.BH.20 | Perloffite | Ba(Mn2+,Fe2+)2Fe3+2(PO4)3(OH)3 |
| 8.BH.20 | Bjarebyite Group | |
| 8.BH.20 | Strontioperloffite | SrMn2+2Fe3+2(PO4)3(OH)3 |
| 8.BH.20 | Plumboperloffite | PbMn2+2Fe3+2(PO4)3(OH)3 |
| 8.BH.20 | Johntomaite | BaFe2+2Fe3+2(PO4)3(OH)3 |
| 8.BH.20 | Bjarebyite | (Ba,Sr)(Mn2+,Fe2+,Mg)2Al2(PO4)3(OH)3 |
| 8.BH.20 | Kulanite | Ba(Fe2+,Mn2+,Mg)2(Al,Fe3+)2(PO4)3(OH)3 |
| 8.BH.25 | Bertossaite | Li2CaAl4(PO4)4(OH)4 |
| 8.BH.25 | Natropalermoite | Na2SrAl4(PO4)4(OH)4 |
| 8.BH.25 | Palermoite | Li2SrAl4(PO4)4(OH)4 |
| 8.BH.30 | Sewardite | CaFe3+2(AsO4)2(OH)2 |
| 8.BH.30 | Carminite | PbFe3+2(AsO4)2(OH)2 |
| 8.BH.35 | Adelite | CaMg(AsO4)(OH) |
| 8.BH.35 | Duftite | PbCu(AsO4)(OH) |
| 8.BH.35 | Cobaltaustinite | CaCo(AsO4)(OH) |
| 8.BH.35 | Nickelaustinite | CaNi(AsO4)(OH) |
| 8.BH.35 | Gabrielsonite | PbFe3+(As3+O3)O |
| 8.BH.35 | Conichalcite | CaCu(AsO4)(OH) |
| 8.BH.35 | Arsendescloizite | PbZn(AsO4)(OH) |
| 8.BH.35 | 'Duftite-alpha' | PbCu(AsO4)(OH) |
| 8.BH.35 | Gottlobite | CaMg(VO4)(OH) |
| 8.BH.35 | Austinite | CaZn(AsO4)(OH) |
| 8.BH.35 | Hermannroseite | CaCu(PO4)(OH) |
| 8.BH.35 | Tangeite | CaCu(VO4)(OH) |
| 8.BH.40 | Čechite | PbFe2+(VO4)(OH) |
| 8.BH.40 | Mottramite | PbCu(VO4)(OH) |
| 8.BH.40 | Descloizite | PbZn(VO4)(OH) |
| 8.BH.40 | Pyrobelonite | PbMn2+(VO4)(OH) |
| 8.BH.45 | Bayldonite | PbCu3(AsO4)2(OH)2 |
| 8.BH.45 | Vésigniéite | BaCu3(VO4)2(OH)2 |
| 8.BH.50 | Paganoite | NiBi(AsO4)O |
| 8.BH.55 | Jagowerite | BaAl2(PO4)2(OH)2 |
| 8.BH.55 | Harrisonite | Ca(Fe2+,Mg)6(PO4)2(SiO4)2 |
| 8.BH.60 | Attakolite | CaMn2+Al4(SiO3OH)(PO4)3(OH)4 |
| 8.BH.65 | Leningradite | PbCu3(VO4)2Cl |
| 8.BH.70 | Katiarsite | KTiO(AsO4) |
| 8.BH.70 | Yurgensonite | K2SnTiO2(AsO4)2 |
| 8.BH.75 | Melanarsite | K3Cu7Fe3+O4(AsO4)4 |
| 8.BH.80 | Evseevite | Na2Mg(AsO4)F |
| 8.BH.80 | Moraskoite | Na2Mg(PO4)F |
| 8.BH.85 | Piccoliite | NaCaMn3+2(AsO4)2O(OH) |
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 Khorixasite
mindat.org URL:
https://www.mindat.org/min-50346.html
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References for Khorixasite
Localities for Khorixasite
Showing 2 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.
DR Congo | |
| Vincent Bourgoin collection. |
Namibia (TL) | |
| Hålenius et al. (2016) +1 other reference |
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Mesopotamia 504 Farm, Mesopotamia copper valley, Khorixas, Kunene Region, Namibia