Mindat Logo

Pringleite

Formula:
Ca
 
9
B
 
26
O
 
34
(OH)
 
24
Cl
 
4
·13H
 
2
O
System:TriclinicColour:Colourless to orange.
Hardness:3 - 4
Dimorph of:Ruitenbergite


The triclinic dimorph of Ruitenbergite.

Classification of Pringleite

IMA status:Approved
Strunz 8th edition ID:5/K.09-10
Nickel-Strunz 10th (pending) edition ID:6.GD.05

6 : BORATES
G : Heptaborates and other megaborates
D : Mega-tektoborates
Dana 8th edition ID:26.5.17.1

26 : HYDRATED BORATES CONTAINING HYDROXYL OR HALOGEN
5 : Pentaborates
mindat.org URL:http://www.mindat.org/min-3283.html
Please feel free to link to this page.

Type Occurrence of Pringleite

Type Locality:Potash Corporation of Saskatchewan Mine (PCS Mine; Potash Corporation of America Mine), Penobsquis, Cardwell Parish, Sussex, Kings Co., New Brunswick, Canada
Year of Discovery:1993

Physical Properties of Pringleite

Colour:Colourless to orange.
Hardness (Mohs):3 - 4

Crystallography of Pringleite

Crystal System:Triclinic
Cell Parameters:a = 12.75Å, b = 13.06Å, c = 9.73Å
α = 102.14°, β = 102.03°, γ = 85.68°
Ratio:a:b:c = 0.976 : 1 : 0.745
Unit Cell Volume:V 1,548.33 ų (Calculated from Unit Cell)

Optical Data of Pringleite

Type:Biaxial (+)
RI values: nα = 1.537 nβ = 1.548 nγ = 1.570
2V:Measured: 71° to 77°, Calculated: 72°
Maximum Birefringence:δ = 0.033

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Low
Dispersion:weak

Chemical Properties of Pringleite

Formula:
Ca
 
9
B
 
26
O
 
34
(OH)
 
24
Cl
 
4
·13H
 
2
O
Essential elements:B, Ca, Cl, H, O
All elements listed in formula:B, Ca, Cl, H, O

Relationship of Pringleite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
6.GD.05Ruitenbergite
Ca
 
9
B
 
26
O
 
34
(OH)
 
24
Cl
 
4
·13H
 
2
O
6.GD.10Metaborite
HBO
 
2

Other Names for Pringleite

Synonyms:
IMA1992-010
Other Languages:
German:Pringleit
Russian:Принглит
Spanish:Pringleita

Other Information

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 Pringleite

Reference List:Roberts, A.C., Stirling, J.A.R., Grice, J.D., Burns, P.C., Curtis, J.D., and Jambor, J.L. (1993) Pringleite and ruitenbergite, polymorphs of Ca2B26O34(OH)24Cl4·13H2O, two new mineral species from Sussex, New Brunswick. Canadian Mineralogist: 31: 795-800.

Grice, J.D., Burns, P.C., and Hawthorne, F.C. (1994) Determination of the megastructures of the borate polymorphs pringleite and ruitenbergite. Canadian Mineralogist (1994): 32: 1-14.

New Minerals (1997), New Minerals 1990-1994.

Grew, E.S., and Anovitz, L.M. (1996) BORON: Mineralogy, Petrology and Geochemistry, second edition, as revised (2002).

Internet Links for Pringleite

Search Engines:
  • Look for Pringleite on Google
  • Look for Pringleite images on Google
  • External Links:
  • Look for Pringleite on Webmineral
  • Look for Pringleite on Athena Mineralogy
  • Look for Pringleite on Wikipedia
  • Look for Pringleite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Pringleite in the Natural History Museum (London) online catalogue
  • Pringleite details from Handbook of Mineralogy (PDF)
  • Mineral Dealers:
  • Mineral Classics - Worldwide Collector Quality Minerals and Gems
  • DAKOTA MATRIX offers Cabinet and Rare Species from Worldwide Localities.
  • Buy minerals from Mineralium.com
  • SpiriferMinerals.com - high quality specimens
  • Rare and Unusual minerals at Mineralogical Research Company
  • High-end worldwide specimens & outstanding customer service
  • Find Pringleite on www.crystalclassics.co.uk
  • Wendel Minerals - Auktion & Shop
  • Buy RARE Minerals from Rocks of Africa
  • Wilensky Fine Minerals
  • Buy Minerals and Crystals from Crystalarium.com
  • Buy fine minerals and gemstones from Pala International
  • Jobs:
  • Mining & Geology Jobs
  • Page Sponsor

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

    Localities for Pringleite

    (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.
    Canada
     
    • New Brunswick
      • Kings Co.
    Canadian Mineralogist: 43: 1469-1487.
        • Sussex
          • Cardwell Parish
            • Penobsquis
    Canadian Mineralogist (1996): 34: 657-665.
    Mineral and/or Locality
    Google
     
    www.mindat.org Web
    Copyright © Jolyon Ralph and Ida Chau 1993-2009. 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. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 18th Nov 2009 06:53:22