Mindat Logo
Home Page Log In Messageboard The Mindat Directory
Register Search Pages Mineral Chatroom The Mindat Store

Bradleyite

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

Westvaco mine, Green River formation, Sweetwater Co., Wyoming, USA

Show Bradleyite Photos (2)



Formula:
Na
 
3
Mg(CO
 
3
)(PO
 
4
)
System:MonoclinicColour:Light grey
Hardness:3 - 4
Name:After geologist Wilmot H. Bradley, U.S. Geological Survey, who conducted geologic investigations in the Green River area, Wyoming.
This page provides mineralogical data about Bradleyite.

Classification of Bradleyite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:5/C.04-10
Nickel-Strunz 10th (pending) edition ID:5.BF.10

5 : CARBONATES (NITRATES)
B : Carbonates with additional anions, without H2O
F : With (Cl), SO4, PO4, TeO3
Dana 8th edition ID:43.2.1.1

43 : COMPOUND PHOSPHATES, ETC.
2 : Anhydrous Normal Compound Phosphates, etc·
Hey's CIM Ref.:22.4.1

22 : Phosphates, Arsenates or Vanadates with other Anions
4 : Phosphates, arsenates or vanadates with carbonate
mindat.org URL:http://www.mindat.org/min-750.html
Please feel free to link to this page.

Type Occurrence of Bradleyite

Type Locality:John Hay Jr. Well No. 1, Green River Formation, Sweetwater Co., Wyoming, USA
Year of Discovery:1941
Geological Setting of type material:Oil shale deposit.
Associated Minerals at type locality:
TronaShortiteQuartzPyritePirssonite
NorthupiteMontmorilloniteGaylussiteDolomiteAlstonite

Physical Properties of Bradleyite

Colour:Light grey
Hardness (Mohs):3 - 4
Density (measured):2.734 g/cm3

Crystallography of Bradleyite

Crystal System:Monoclinic
Cell Parameters:a = 8.85Å, b = 6.63Å, c = 5.16Å
β = 90.42°
Ratio:a:b:c = 1.335 : 1 : 0.778
Unit Cell Volume:V 302.76 ų (Calculated from Unit Cell)
Morphology:Extremely fine-grained masses.

Optical Data of Bradleyite

Type:Biaxial (-)
RI values: nα = 1.490 nγ = 1.560
Maximum Birefringence:δ = 0.070

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Moderate
Dispersion:none

Chemical Properties of Bradleyite

Formula:
Na
 
3
Mg(CO
 
3
)(PO
 
4
)
Essential elements:C, Mg, Na, O, P
All elements listed in formula:C, Mg, Na, O, P

Relationship of Bradleyite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
5.BF.05Ferrotychite
Na
 
6
(Fe,Mn,Mg)
 
2
(CO
 
3
)
 
4
(SO
 
4
)
5.BF.05Manganotychite
Na
 
6
Mn
 
2
(CO
 
3
)
 
4
(SO
 
4
)
5.BF.05Northupite
Na
 
3
Mg(CO
 
3
)
 
2
Cl
5.BF.05Tychite
Na
 
6
Mg
 
2
(CO
 
3
)
 
4
(SO
 
4
)
5.BF.10Bonshtedtite
Na
 
3
Fe
2+
 
(CO
 
3
)(PO
 
4
)
5.BF.10Crawfordite
Na
 
3
Sr(CO
 
3
)(PO
 
4
)
5.BF.10Sidorenkite
Na
 
3
Mn
2+
 
(CO
 
3
)(PO
 
4
)
5.BF.15Daqingshanite-(Ce)
(Sr,Ca,Ba)
 
3
(Ce,La)(CO
 
3
)
 
3-x
(PO
 
4
)(OH,F)
 
2x
5.BF.20Reederite-(Y)
(Na,Mn)
 
15
Y
 
2
(CO
 
3
)
 
9
(FSO
 
3
)Cl
5.BF.25Mineevite-(Y)
Na
 
25
Ba(Y,Gd,Dy)
 
2
(CO
 
3
)
 
11
(HCO
 
3
)
 
4
(SO
 
4
)
 
2
F
 
2
Cl
5.BF.30Brianyoungite
Zn
 
3
(CO
 
3
,SO
 
4
)(OH)
 
4
5.BF.35Philolithite
Pb
 
12
Mn
2+
 
(Mg,Mn
2+
 
)
 
2
(Mn
2+
 
,Mg)
 
4
(CO
 
3
)
 
4
(SO
 
4
)O
 
6
(OH)
 
12
Cl
 
4
5.BF.40Leadhillite
Pb
 
4
(CO
 
3
)
 
2
(SO
 
4
)(OH)
 
2
5.BF.40Macphersonite
Pb
 
4
(CO
 
3
)
 
2
(SO
 
4
)(OH)
 
2
5.BF.40Susannite
Pb
 
4
(CO
 
3
)
 
2
(SO
 
4
)(OH)
 
2
Related Minerals - Hey's Index Grouping:

- +
22.4.2Kovdorskite
Mg
 
2
(PO
 
4
)(OH) · 3H
 
2
O
22.4.3Carbonate-rich Hydroxylapatite
Ca
 
5
(PO
 
4
,CO
 
3
)
 
3
(OH,O)
22.4.4Carbonate-rich Fluorapatite
Ca
 
5
(PO
 
4
,CO
 
3
)
 
3
(F,O)
22.4.5Tyrolite
Ca
 
2
Cu
 
9
(AsO
 
4
)
 
4
(CO
 
3
)(OH)
 
8
 · 11H
 
2
O
22.4.6Heneuite
CaMg
 
5
(CO
 
3
)(PO
 
4
)
 
3
(OH)
22.4.7Girvasite
NaCa
 
2
Mg
 
3
(PO
 
4
)
 
2
(H
 
2
PO
 
4
)(CO
 
3
)(OH)
 
2
 · 4H
 
2
O
22.4.8Daqingshanite-(Ce)
(Sr,Ca,Ba)
 
3
(Ce,La)(CO
 
3
)
 
3-x
(PO
 
4
)(OH,F)
 
2x
22.4.9Gartrellite
Pb(Cu,Fe
3+
 
,Zn)
 
2
(AsO
 
4
,SO
 
4
)
 
2
 · 2(H
 
2
O,OH)
22.4.10Voggite
Na
 
2
Zr(PO
 
4
)(CO
 
3
)(OH) · 2H
 
2
O
22.4.11Bonshtedtite
Na
 
3
Fe
2+
 
(CO
 
3
)(PO
 
4
)

Other Names for Bradleyite

Other Languages:
German:Bradleyit
Spanish:Bradleyita

Other Information

Other Information:Slowly decomposed by cold water with Na2CO3 released to solution. Readily soluble in dilute HCl.
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 Bradleyite

Reference List:

- +
Fahey (1941) American Mineralogist: 26: 646-650.

Brasseur (1946) Bull. soc. roy. sc. Liége: 15: 527.

Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: Halides, Nitrates, Borates, Carbonates, Sulfates, Phosphates, Arsenates, Tungstates, Molybdates, Etc. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged: 295.

Internet Links for Bradleyite

Search Engines:
  • Look for Bradleyite on Google
  • Look for Bradleyite images on Google
    • External Links:
  • Look for Bradleyite on Webmineral
  • Look for Bradleyite on Athena Mineralogy
  • Look for Bradleyite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
    • Mineral Dealers:
  • Buy RARE Minerals from Rocks of Africa
  • Fine and rare minerals from mintreasure.com
  • Buy from David K Joyce minerals
  • Buy minerals from YourMineralCollection
  • Fine Minerals from Weinrich Minerals, Inc.
  • rare and unusual minerals mainly crystallized
  • Rare and Unusual minerals at Mineralogical Research Company
  • DAKOTA MATRIX offers Cabinet and Rare Species from Worldwide Localities.
  • Fabre Minerals - search for Bradleyite specimens
  • Mineral Classics - Worldwide Collector Quality Minerals and Gems
  • Search for - Bradleyite - on e-Rocks Mineral Sales & Auctions
  • High-end worldwide specimens & outstanding customer service
    • Jobs:
  • Mining & Geology Jobs

    • Localities for Bradleyite

    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.
    Hide Locality List
    (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.
    Bosnia and Herzegovina
     
    • Federation of Bosnia and Herzegovina
      • Tuzla Canton
        • Tuzla
    		Am Min 79: pp 562-569
    Canada
     
    • Québec
      • Montérégie
        • Rouville RCM
          • Mont Saint-Hilaire
    		HORVÁTH, L., PFENNINGER HORVÁTH, E. (2000) I minerali di Mont-Saint-Hilaire (Québec, Canada) Rivista Mineralogica Italiana, XXIV, 140-202 (in Italian with English summary).
    Russia
     
    • Northern Region
      • Murmanskaja Oblast'
        • Kola Peninsula
          • Afrikanda
    		www.koeln.netsurf.de/~w.steffens/afri.htm
          • Khibiny Massif
    		Pekov, I.V. & Podlesnyi, A.S. (2004): Kukisvumchorr Deposit: Mineralogy of Alkaline Pegmatites and Hydrotermalites. Mineralogical Almanac, vol. 7, 140 pages + xxiv photo's pages
          • Kovdor Massif
    		Pavel M. Kartashov analytical data 2012
    Pavel M. Kartashov analytical data 2012
    USA
     
    • Wyoming
      • Sweetwater Co.
    		Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 139, 279, 295.
    Am Min 26:646-650
    [Clark, 1993, "Hey's Mineral Index"]
    Mineral and/or Locality
    Search Google
     
    Copyright © Jolyon Ralph and Ida Chau 1993-2012. 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: 22nd Nov 2012 00:21:10
    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