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Dufrénite from

J66-7A1Dufrénite Ca0.5Fe2+Fe3+5(PO4)4(OH)6·2H2O , Hydroxylapatite Ca5(PO4)3(OH)

04413920017364674672732.jpg
Sítio do Castelo Mine, Folgosinho, Gouveia, Guarda, Portugal

Field of View: 1.19 mm

Very deep green dufrénite crystals on hydroxylapatite.
Both EDS and XRD characterized.
Copyright: © Pedro Alves      Photo ID: 755472     Uploaded by: Pedro Alves   Approval date: 2016-06-16   View Count: 581   Approval status: Public galleries    Type: Photo - 3922 x 3217 pixels (12.6 Mpix)

940-KHLDufrénite Ca0.5Fe2+Fe3+5(PO4)4(OH)6·2H2O , Earlshannonite Mn2+Fe3+2(PO4)2(OH)2·4H2O

07932230017272040434693.jpg
Sítio do Castelo Mine, Folgosinho, Gouveia, Guarda, Portugal

Field of View: 119 μm

Dufrénite crystals on earlshannonite.
Image in SE mode.
Copyright: © Pedro Alves      Photo ID: 756743     Uploaded by: Pedro Alves   Approval date: 2016-06-23   View Count: 280   Approval status: Public galleries    Type: Photo - 1024 x 882 pixels (0.9 Mpix)

G8H-5R8Dufrénite Ca0.5Fe2+Fe3+5(PO4)4(OH)6·2H2O , Opal (Var: Opal-AN) ? SiO2·nH2O

01154360017272036812826.jpg
Padrão Mine, Manhouce, São Pedro do Sul, Viseu, Portugal

Field of View: 1 mm

Possible Dufrenite covered by Hyalite,p.w. 0,83 mm,
Photo & Coll. Ko Jansen.
Copyright: © Ko Jansen      Photo ID: 573431     Uploaded by: Ko Jansen   Approval date: 2013-11-22   View Count: 297   Approval status: Public galleries    Type: Photo - 1024 x 752 pixels (0.8 Mpix)

AJ8-H69Dufrénite Ca0.5Fe2+Fe3+5(PO4)4(OH)6·2H2O

02501500017367921801333.jpg
Padrão Mine, Manhouce, São Pedro do Sul, Viseu, Portugal

Field of View: 1.57 mm

Possible,Dufrénite two colors,on Carminite,p.w. 1,57 mm,Coll.& Photo Ko Jansen.
Copyright: © Ko Jansen      Photo ID: 594906     Uploaded by: Ko Jansen   Approval date: 2014-02-17   View Count: 284   Approval status: Public galleries    Type: Photo - 1785 x 1428 pixels (2.5 Mpix)

JEM-RMMDufrénite Ca0.5Fe2+Fe3+5(PO4)4(OH)6·2H2O , Earlshannonite Mn2+Fe3+2(PO4)2(OH)2·4H2O

09951440017272040442912.jpg
Sítio do Castelo Mine, Folgosinho, Gouveia, Guarda, Portugal

Field of View: 1.14 mm

Deep green to black dufrénite crystals on botryoidal earlshannonite.
Both SXRD and EDS analyzed.

Note: in this particular case, and in all the studied samples of earlshannonite with this aspect (pale yellow to pale orange, botryoidal and sometimes dusty), earlshannonite tend to contain significant amounts of As.
Copyright: © Pedro Alves      Photo ID: 756656     Uploaded by: Pedro Alves   Approval date: 2016-06-22   View Count: 485   Approval status: Public galleries    Type: Photo - 3744 x 2956 pixels (11.1 Mpix)

PU3-W3GFrondelite (Mn2+0.5Fe3+0.5)2Fe3+3(PO4)3(OH)5 , Dufrénite Ca0.5Fe2+Fe3+5(PO4)4(OH)6·2H2O

00374890017366909581987.jpg
Sítio do Castelo Mine, Folgosinho, Gouveia, Guarda, Portugal

Field of View: 149 μm

Zn bearing frondelite crystals perched on dufrénite.

Image in BSED mode.
Copyright: © Pedro Alves      Photo ID: 756745     Uploaded by: Pedro Alves   Approval date: 2016-06-23   View Count: 177   Approval status: Public galleries    Type: Photo - 1024 x 882 pixels (0.9 Mpix)

FXY-RHEStrengite FePO4·2H2O , Dufrénite Ca0.5Fe2+Fe3+5(PO4)4(OH)6·2H2O

05291320017272041509846.jpg
Monteiro Mine, Cabração e Moreira do Lima, Ponte de Lima, Viana do Castelo, Portugal

Strengite aggregates with 1mm, and earthy green dufrenite.
Copyright: © Pedro Alves      Photo ID: 511753     Uploaded by: Pedro Alves   Approval date: 2013-01-24   View Count: 361   Approval status: Public galleries    Type: Photo - 772 x 539 pixels (0.4 Mpix)
 
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