Duhamelite
A variety of Mottramite
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About Duhamelite
Formula:
(Pb,Bi,Ca)Cu(VO4)(OH,O)
Hardness:
3
Crystal System:
Orthorhombic
Name:
For J.E. Duhamel.
A variety of Mottramite
Ca- and Bi-bearing variety of mottramite, typically with acicular habit.
Discredited as a mineral species.
For the Bi-dominant member, see khorixasite.
Originally reported from Lousy Gulch, Payson area, Payson District (Green Valley District), Gila Co., Arizona, USA.
Ca- and Bi-bearing variety of mottramite, typically with acicular habit.
Discredited as a mineral species.
For the Bi-dominant member, see khorixasite.
Originally reported from Lousy Gulch, Payson area, Payson District (Green Valley District), Gila Co., Arizona, USA.
Unique Identifiers
Mindat ID:
1327 (as Duhamelite)
2792 (as Mottramite)
2792 (as Mottramite)
Long-form identifier:
mindat:1:1:1327:3 (as Duhamelite)
mindat:1:1:2792:8 (as Mottramite)
mindat:1:1:2792:8 (as Mottramite)
GUID
(UUID V4):
(UUID V4):
6fb14e62-9393-4143-8b77-bc7f38aeda9e (as Duhamelite)
c798f043-edca-4e8d-962b-0a00fecf1269 (as Mottramite)
c798f043-edca-4e8d-962b-0a00fecf1269 (as Mottramite)
IMA Classification of Duhamelite
Discredited
Classification of Duhamelite
21.3.18
21 : Vanadates (and vanadates with arsenate or phosphate)
3 : Vanadates of Al, rare earths, Pb, V or Bi
21 : Vanadates (and vanadates with arsenate or phosphate)
3 : Vanadates of Al, rare earths, Pb, V or Bi
Physical Properties of Duhamelite
Hardness:
3 on Mohs scale
Optical Data of Duhamelite
Type:
Biaxial
RI values:
nα = 2.080 nβ = 2.110
Max Birefringence:
δ = 2.080
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
and does not take into account mineral colouration.
Surface Relief:
Very High
Dispersion:
r < v strong
Chemistry of Duhamelite
Mindat Formula:
(Pb,Bi,Ca)Cu(VO4)(OH,O)
Crystallography of Duhamelite
Crystal System:
Orthorhombic
Other Language Names for Duhamelite
German:Duhamelit
Spanish:Duhamelita
Common Associates
Associated Minerals Based on Photo Data:
| 11 photos of Duhamelite associated with Shattuckite | Cu5(Si2O6)2(OH)2 |
| 10 photos of Duhamelite associated with Quartz | SiO2 |
| 7 photos of Duhamelite associated with Namibite | Cu(BiO)2(VO4)(OH) |
| 4 photos of Duhamelite associated with Cuprite | Cu2O |
| 4 photos of Duhamelite associated with Malachite | Cu2(CO3)(OH)2 |
| 4 photos of Duhamelite associated with Mottramite | PbCu(VO4)(OH) |
| 4 photos of Duhamelite associated with Goethite | α-Fe3+O(OH) |
| 3 photos of Duhamelite associated with Sillénite | Bi12SiO20 |
| 3 photos of Duhamelite associated with Ajoite | (K,Na)Cu7AlSi9O24(OH)6 · 3H2O |
| 2 photos of Duhamelite associated with Hematite | Fe2O3 |
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 Duhamelite
mindat.org URL:
https://www.mindat.org/min-1327.html
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References for Duhamelite
Reference List:
Localities for Duhamelite
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.
Argentina | |
| Samples acquired from Nelson Valenzuela |
Australia | |
| Pring et al. (2000) |
DR Congo | |
| King et al. (1991) +1 other reference |
France | |
| Robert PECORINI collection |
Germany | |
| Blass (1992) |
Italy | |
| Olmi F. et al. (SS) |
Mexico | |
| Dakota Matrix specimen (Phillips collection) |
Namibia | |
| Niedermayr (2001) |
Switzerland | |
| Stalder et al. (1998) |
USA | |
| Anthony et al. (1995) |
| Anthony et al. (1995) |
| Anthony et al. (1995) |
| Luetcke (n.d.) |
| Williams (1981) +1 other reference |
| Anthony et al. (1995) |
| Ron Gibbs |
| Bob Meyer (2012) |
| Collected by Joe Ruiz. | |
| Walstrom (n.d.) |
| Self collected by Brent Thorne. SEM ... +1 other reference |
| Walstrom +1 other reference |
| Walstrom (n.d.) |
| Jerry Cone Collection |
Iron Monarch Main Pit, Iron Knob, Middleback Range, Eyre Peninsula, South Australia, Australia