Duftite-alpha
This page is currently not sponsored. Click here to sponsor this page.
About Duftite-alpha
Formula:
PbCu(AsO4)(OH)
Colour:
Green
Lustre:
Vitreous, Dull
Hardness:
3
Member of:
Dimorph of:
A polymorph of Duftite apparently isostructural with Descloizite (for literature see Duftite). Modern studies needed.
Originally described from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia.
Guillemin (1956) distinguished two kinds of duftite: "duftite-α" = duftite (space group Pnam) and (Ca-bearing) "duftite-β" = duftite (space group P212121).
Originally described from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia.
Guillemin (1956) distinguished two kinds of duftite: "duftite-α" = duftite (space group Pnam) and (Ca-bearing) "duftite-β" = duftite (space group P212121).
Unique Identifiers
Mindat ID:
5267
Long-form identifier:
mindat:1:1:5267:8
IMA Classification of Duftite-alpha
'Grandfathered' (first described prior to 1959), Questionable
Classification of Duftite-alpha
8.BH.35
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
41.5.2.5
41 : ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
5 : (AB)2(XO4)Zq
41 : ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
5 : (AB)2(XO4)Zq
Physical Properties of Duftite-alpha
Optical Data of Duftite-alpha
Type:
Biaxial (-)
RI values:
nα = 2.04 nβ = 2.08 nγ = 2.1
Max. Birefringence:
δ = 0.060
Based on recorded range of RI values above.
Based on recorded range of RI values above.
Interference Colours:
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars.
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars.
Surface Relief:
Moderate
Dispersion:
r < v strong
Chemistry of Duftite-alpha
Mindat Formula:
PbCu(AsO4)(OH)
Element Weights:
Synonyms of Duftite-alpha
Other Language Names for Duftite-alpha
Relationship of Duftite-alpha to other Species
Member of:
Other Members of Adelite-Descloizite Group:
| Adelite | CaMg(AsO4)(OH) | Orth. 2 2 2 : P21 21 21 |
| Arsendescloizite | PbZn(AsO4)(OH) | Orth. 2 2 2 : P21 21 21 |
| Austinite | CaZn(AsO4)(OH) | Orth. 2 2 2 : P21 21 21 |
| Čechite | PbFe2+(VO4)(OH) | Orth. mmm (2/m 2/m 2/m) |
| Cobaltaustinite | CaCo(AsO4)(OH) | Orth. 2 2 2 : P21 21 21 |
| Conichalcite | CaCu(AsO4)(OH) | Orth. 2 2 2 : P21 21 21 |
| Descloizite | PbZn(VO4)(OH) | Orth. mmm (2/m 2/m 2/m) : Pnma |
| Duftite | PbCu(AsO4)(OH) | Orth. 2 2 2 : P21 21 21 |
| Gottlobite | CaMg(VO4)(OH) | Orth. 2 2 2 : P21 21 21 |
| Hermannroseite | CaCu(PO4)(OH) | Orth. 2 2 2 : P21 21 21 |
| Mottramite | PbCu(VO4)(OH) | Orth. mmm (2/m 2/m 2/m) : Pnma |
| Nickelaustinite | CaNi(AsO4)(OH) | Orth. 2 2 2 : P21 21 21 |
| Plumbogottlobite | PbMg(VO4)(OH) | Orth. mmm (2/m 2/m 2/m) : Pnma |
| Pyrobelonite | PbMn2+(VO4)(OH) | Orth. mmm (2/m 2/m 2/m) : Pnma |
| Tangeite | CaCu(VO4)(OH) | Orth. 2 2 2 : P21 21 21 |
| 'Unnamed (Pb-analogue of Nickelaustinite)' | PbNi(AsO4)(OH) | |
| Vuagnatite | CaAl(SiO4)(OH) | Orth. 2 2 2 : P21 21 21 |
Common Associates
Associations Based on Photo Data:
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 | 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 | Khorixasite | (Bi0.67◻0.33)Cu(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 Duftite-alpha
mindat.org URL:
https://www.mindat.org/min-5267.html
Please feel free to link to this page.
Please feel free to link to this page.
Search Engines:
Mineral Dealers:
References for Duftite-alpha
Localities for Duftite-alpha
Showing 3 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.
Germany | |
| Der Aufschluss Vol.55 |
Namibia | |
| Hey p187 +1 other reference |
UK | |
| Cooper et al. (1990) |
Tsumeb Mine, Tsumeb, Oshikoto Region, Namibia