Mindat Logo

Gabrielsonite

This page is currently not sponsored. Click here to sponsor this page.



Formula:
PbFe(AsO
 
4
)(OH)
System:OrthorhombicColour:Greenish-brown, black
Lustre:AdamantineHardness:
Member of:Adelite-Descloizite Group
Name:Named by Paul (Paulus) Brian Moore in 1967 in honor of Swedish mineralogist, Olof Erik Gabrielson (December 10, 1912 Örebro, Sweden - January 28, 1980) who was at the University of Stockholm and later at the Swedish Museum of Natural History.


Adelite-Descloizite Group.
The crystal structure is unsolved; it appears to be microtwinned (U. Kolitsch, unpubl. results).

Classification of Gabrielsonite

IMA status:Approved 1966
Strunz 8th edition ID:7/B.26-70
Nickel-Strunz 10th (pending) edition ID: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
Dana 8th edition ID:41.5.1.5

41 : ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
5 : (AB)2(XO4)Zq
Hey's CIM Ref.:20.5.11

20 : Arsenates (also arsenates with phosphate, but without other anions)
5 : Arsenates of Ti and Pb
mindat.org URL:http://www.mindat.org/min-1626.html
Please feel free to link to this page.

Type Occurrence of Gabrielsonite

Type Locality:Långban, Filipstad, Värmland, Sweden
General Appearance of Type Material:black grains to several mm
Year of Discovery:1967
Geological Setting of type material:Manganese and arsenic mineralized skarn
Associated Minerals at type locality:
Roméite GroupNadoriteFinnemaniteCalciteBaryte

Physical Properties of Gabrielsonite

Lustre:Adamantine
Diaphaneity (Transparency):Translucent
Colour:Greenish-brown, black
Streak:Light brown
Hardness (Mohs):
Tenacity:Brittle
Cleavage:None Observed
Fracture:Irregular/Uneven, Sub-Conchoidal
Density (measured):6.67 g/cm3
Density (calculated):6.69 g/cm3

Crystallography of Gabrielsonite

Crystal System:Orthorhombic
Class (H-M):mm2 - Pyramidal
Space Group:Pmc21
Cell Parameters:a = 7.86Å, b = 5.98Å, c = 8.62Å
Ratio:a:b:c = 1.314 : 1 : 1.441
Unit Cell Volume:V 405.16 ų (Calculated from Unit Cell)
Z:4
Morphology:Granular
Comment:P21ma
X-Ray Powder Diffraction:
d-spacingIntensity
4.91 (30)
3.93 (30)
3.19 (100)
3.07 (100)
2.71 (40)
2.65 (40)
1.622 (40)
1.438 (40)
Comments:ICDD 20-583

Optical Data of Gabrielsonite

Type:Biaxial (-)
RI values: n = 2.
2V:Measured: 80° to 90°
Maximum Birefringence:δ = 0.000

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Very High
Dispersion:r
Optical Extinction:Parallel
Pleochroism:Strong
Comments:X, Z = olive green, Y = red brown. Y > X = Z

Chemical Properties of Gabrielsonite

Formula:
PbFe(AsO
 
4
)(OH)
Essential elements:As, Fe, H, O, Pb
All elements listed in formula:As, Fe, H, O, Pb

Relationship of Gabrielsonite to other Species

Member of:Adelite-Descloizite Group
Other Members of Group:

- +
Adelite
CaMg(AsO
 
4
)(OH)
Arsendescloizite
PbZn(AsO
 
4
)(OH)
Austinite
CaZn(AsO
 
4
)(OH)
Čechite
Pb(Fe
2+
 
,Mn
2+
 
)(VO
 
4
)(OH)
Cobaltaustinite
CaCo(AsO
 
4
)(OH)
Conichalcite
CaCu(AsO
 
4
)(OH)
Descloizite
Pb(Zn,Cu)(VO
 
4
)(OH)
Duftite
PbCu(AsO
 
4
)(OH)
Gottlobite
CaMg(VO
 
4
,AsO
 
4
)(OH)
Hermannroseite
CaCu(PO
 
4
)(OH)
Mottramite
PbCu(VO
 
4
)(OH)
Nickelaustinite
Ca(Ni,Zn)(AsO
 
4
)(OH)
Pyrobelonite
PbMn
2+
 
(VO
 
4
)(OH)
Tangeite
CaCu(VO
 
4
)(OH)
Related Minerals - Nickel-Strunz Grouping):

- +
8.BH.05Thadeuite
Ca(Mg,Fe
2+
 
)
 
3
(PO
 
4
)
 
2
(OH,F)
 
2
8.BH.10Durangite
NaAl(AsO
 
4
)F
8.BH.10Isokite
CaMg(PO
 
4
)F
8.BH.10Lacroixite
NaAl(PO
 
4
)F
8.BH.10Maxwellite
NaFe
3+
 
(AsO
 
4
)F
8.BH.10Panasqueiraite
CaMg(PO
 
4
)(OH,F)
8.BH.10Tilasite
CaMg(AsO
 
4
)F
8.BH.15Drugmanite
Pb(Fe
3+
 
,Al)
 
2
(PO
 
4
)
 
2
(OH)
 
2
8.BH.20Bjarebyite
(Ba,Sr)(Mn
2+
 
,Fe
2+
 
,Mg)
 
2
Al
 
2
(PO
 
4
)
 
3
(OH)
 
3
8.BH.20Cirrolite
Ca
 
3
Al
 
2
(PO
 
4
)
 
3
(OH)
 
3
(?)
8.BH.20Kulanite
Ba(Fe
2+
 
,Mn
2+
 
,Mg)
 
2
(Al,Fe
3+
 
)
 
2
(PO
 
4
)
 
3
(OH)
 
3
8.BH.20Penikisite
Ba(Mg,Fe
2+
 
,Ca)
 
2
Al
 
2
(PO
 
4
)
 
3
(OH)
 
3
8.BH.20Perloffite
Ba(Mn
2+
 
,Fe
2+
 
)
 
2
Fe
3+
2
(PO
 
4
)
 
3
(OH)
 
3
8.BH.20Johntomaite
BaFe
2+
2
Fe
3+
2
(PO
 
4
)
 
3
(OH)
 
3
8.BH.25Bertossaite
(Li,Na)
 
2
(Ca,Fe
2+
 
,Mn
2+
 
)Al
 
4
(PO
 
4
)
 
4
(OH,F)
 
4
8.BH.25Palermoite
(Li,Na)
 
2
(Sr,Ca)Al
 
4
(PO
 
4
)
 
4
(OH)
 
4
8.BH.30Carminite
PbFe
3+
2
(AsO
 
4
)
 
2
(OH)
 
2
8.BH.30Sewardite
CaFe
3+
2
(AsO
 
4
)
 
2
(OH)
 
2
8.BH.35Adelite
CaMg(AsO
 
4
)(OH)
8.BH.35Arsendescloizite
PbZn(AsO
 
4
)(OH)
8.BH.35Austinite
CaZn(AsO
 
4
)(OH)
8.BH.35Cobaltaustinite
CaCo(AsO
 
4
)(OH)
8.BH.35Conichalcite
CaCu(AsO
 
4
)(OH)
8.BH.35Duftite
PbCu(AsO
 
4
)(OH)
8.BH.35Nickelaustinite
Ca(Ni,Zn)(AsO
 
4
)(OH)
8.BH.35Tangeite
CaCu(VO
 
4
)(OH)
8.BH.35Gottlobite
CaMg(VO
 
4
,AsO
 
4
)(OH)
8.BH.35Hermannroseite
CaCu(PO
 
4
)(OH)
8.BH.40Čechite
Pb(Fe
2+
 
,Mn
2+
 
)(VO
 
4
)(OH)
8.BH.40Descloizite
Pb(Zn,Cu)(VO
 
4
)(OH)
8.BH.40Mottramite
PbCu(VO
 
4
)(OH)
8.BH.40Pyrobelonite
PbMn
2+
 
(VO
 
4
)(OH)
8.BH.45Bayldonite
PbCu
 
3
(AsO
 
4
)
 
2
(OH)
 
2
8.BH.45Vésigniéite
BaCu
 
3
(VO
 
4
)
 
2
(OH)
 
2
8.BH.50Paganoite
NiBi(AsO
 
4
)O
8.BH.55Jagowerite
BaAl
 
2
(PO
 
4
)
 
2
(OH)
 
2
8.BH.55Carlgieseckeite-(Nd)
NaNdCa
 
3
(PO
 
4
)
 
3
F
8.BH.60Attakolite
(Ca,Sr)Mn(Al,Fe)
 
4
(HPO
 
4
,PO
 
4
)
 
3
(SiO
 
4
,PO
 
4
)(OH)
 
4
8.BH.65Leningradite
PbCu
 
3
(VO
 
4
)
 
2
Cl
Related Minerals - Hey's Index Grouping:

- +
20.5.1Cafarsite
Ca
 
8
(Ti,Fe,Fe,Mn)
 
6-7
(AsO
 
3
)
 
12
· 4H
 
2
O
20.5.2Schultenite
Pb(HAsO
 
4
)
20.5.3Duftite
PbCu(AsO
 
4
)(OH)
20.5.4Bayldonite
PbCu
 
3
(AsO
 
4
)
 
2
(OH)
 
2
20.5.5Philipsbornite
PbAl
 
3
(AsO
 
4
)
 
2
(OH)
 
5
· H
 
2
O
20.5.6Arsendescloizite
PbZn(AsO
 
4
)(OH)
20.5.7Helmutwinklerite
Pb(Zn,Cu)
 
2
(AsO
 
4
)
 
2
· 2H
 
2
O
20.5.8Thometzekite
Pb(Cu,Zn)
 
2
(AsO
 
4
,SO
 
4
)
 
2
· 2(H
 
2
O,OH)
20.5.9Caryinite
(Na,Pb)(Ca,Na)(Ca,Mn
2+
 
)(Mn
2+
 
,Mg,Fe
3+
 
)
 
2
(AsO
 
4
)
 
3
20.5.10Ludlockite
PbFe
3+
4
As
3+
10
O
 
22
20.5.12Carminite
PbFe
3+
2
(AsO
 
4
)
 
2
(OH)
 
2
20.5.13Segnitite
PbFe
3+
3
(AsO
 
4
)
 
2
(OH,H
 
2
O)
 
6
20.5.14Tsumcorite
Pb(Zn,Fe
3+
 
)
 
2
(AsO
 
4
)
 
2
· 2(H
 
2
O,OH)
20.5.15Jamesite
Pb
 
2
Zn(Fe
2+
 
,Zn)
 
2
Fe
3+
4
(AsO
 
4
)
 
4
(OH)
 
10
20.5.16Mawbyite
Pb(Fe
3+
 
,Zn)
 
2
(AsO
 
4
)
 
2
· 2(OH,H
 
2
O)
20.5.17Arsenbrackenbuschite

Other Names for Gabrielsonite

Synonyms:
IMA1966-011
Other Languages:
German:Gabrielsonit
Spanish:Gabrielsonita

Other Information

Fluorescence in UV light:Not fluorescent
Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Gabrielsonite

Reference List:

- +
Moore, Paul (Paulus) Brian, 1967, [Gabrielsonite], Arkiv. Min. Geol., 4: 401

(abstract) American Mineralogist: 53: 1063-1064.

Internet Links for Gabrielsonite

Search Engines:
  • Look for Gabrielsonite on Google
  • Look for Gabrielsonite images on Google
  • External Links:
  • Look for Gabrielsonite on Webmineral
  • Look for Gabrielsonite on Athena Mineralogy[Link Broken?]
  • Look for Gabrielsonite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Gabrielsonite details from Handbook of Mineralogy (PDF)
  • Mineral Dealers:
  • Find Gabrielsonite on www.crystalclassics.co.uk
  • Buy RARE Minerals from Rocks of Africa
  • Search for minerals at Heliodor
  • webminerals
  • Rare and Unusual minerals at Mineralogical Research Company
  • Mineral Classics - Worldwide Collector Quality Minerals and Gems
  • Fabre Minerals - search for Gabrielsonite specimens
  • Edwards Minerals - Fine Specimens
  • Fine Minerals from Weinrich Minerals, Inc.
  • Wilensky Fine Minerals
  • The Arkenstone - Fine Minerals
  • Buy fine minerals and gemstones from Pala International
  • Jobs:
  • Mining & Geology Jobs
  • Localities for Gabrielsonite

    The map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Sweden
     
    • Värmland
      • Filipstad
    Arkiv Min.Geol.(1967) 4, 401-405; Clark, 1993, 249 - "Hey's Mineral Index - 3rd Edition"; Nysten, P., Holtstam, D. and Jonsson, E. (1999) The Långban minerals. In Långban - The mines,their minerals, geology and explorers (D. Holtstam and J. Langhof, eds.), Swedish Museum of Natural History and Raster Förlag, Stockholm & Chr. Weise Verlag, Munich, pp. 89-183.
    Mineral and/or Locality
    Search Google
     
    Copyright © Jolyon Ralph and Ida Chau 1993-2011. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
    Current server date and time: 15th Dec 2011 21:23:36
    Mineral and Locality Search
    Mineral:
    and/or Locality:
    Options
    Fade toolbar when not in focusFix toolbar to bottom of page
    Hide Social Media Links
    Slideshow frame delay seconds