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Ruitenbergite

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Formula:
Ca
 
9
B
 
26
O
 
34
(OH)
 
24
Cl
 
4
· 13H
 
2
O
System:MonoclinicColour:Colourless to orange, ...
Hardness:3 - 4
Name:After Arie Anne Ruitenberg (b. 1929), resident geologist for southern New Brunswick, Department of Natural Resources, Sussex, New Brunswick, Canada, for his contributions to the geology of New Brunswick.
Dimorph of:Pringleite


The monoclinic dimorph of Pringleite.

Classification of Ruitenbergite

IMA status:Approved
Strunz 8th edition ID:5/K.09-20
Nickel-Strunz 10th (pending) edition ID:6.GD.05

6 : BORATES
G : Heptaborates and other megaborates
D : Mega-tektoborates
Dana 8th edition ID:26.5.17.2

26 : HYDRATED BORATES CONTAINING HYDROXYL OR HALOGEN
5 : Pentaborates
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Type Occurrence of Ruitenbergite

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

Physical Properties of Ruitenbergite

Lustre:Vitreous
Diaphaneity (Transparency):Transparent
Colour:Colourless to orange, white, pale yellow
Hardness (Mohs):3 - 4

Crystallography of Ruitenbergite

Crystal System:Monoclinic
Cell Parameters:a = 19.88Å, b = 9.71Å, c = 17.55Å
β = 114.85°
Ratio:a:b:c = 2.047 : 1 : 1.807
Unit Cell Volume:V 3,074.09 ų (Calculated from Unit Cell)

Optical Data of Ruitenbergite

Type:Biaxial (+)
RI values: nα = 1.542 nβ = 1.545 nγ = 1.565
2V:Measured: 42° to 47°, Calculated: 44°
Maximum Birefringence:δ = 0.023

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 Ruitenbergite

Formula:
Ca
 
9
B
 
26
O
 
34
(OH)
 
24
Cl
 
4
· 13H
 
2
O
Simplified for copy/paste:Ca9B26O34(OH)24Cl4·13H2O
Essential elements:B, Ca, Cl, H, O
All elements listed in formula:B, Ca, Cl, H, O

Relationship of Ruitenbergite to other Species

Related Minerals - Nickel-Strunz Grouping):

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

Other Names for Ruitenbergite

Synonyms:
IMA1992-011
Other Languages:
German:Ruitenbergit
Russian:Рутенбергит
Spanish:Ruitenbergita

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 Ruitenbergite

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.
GRICE, J.D., GAULT, R.A. & VAN VELTHUIZEN, J.J. (2005) Borate minerals from the Penobsquis and Millstream deposits, Southern New Brunswick, Canada. Canadian Mineralogist 43, 1469-1487.
Grew, E.S., and Anovitz, L.M. (1996) BORON: Mineralogy, Petrology and Geochemistry, second edition, as revised (2002).

Internet Links for Ruitenbergite

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  • Raman and XRD data at RRUFF project
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  • Ruitenbergite details from Handbook of Mineralogy (PDF)
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  • Localities for Ruitenbergite

    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.
    Canada
     
    • New Brunswick
      • Kings Co.
        • Cardwell Parish
          • Penobsquis
    Can.Min.(1993) 31, 795-800
        • Hammond Parish
          • Salt Springs evaporite deposit
    BURNS, P.C., HAWTHORNE, F.C. & STIRLING, J.A.R. (1992): Trembathite, (Mg,Fe)3B7O13Cl, a new borate mineral from the Salt Springs potash deposit, Sussex, New Brunswick. Canadian Mineralogist 30, 445-448.
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    Copyright © Jolyon Ralph and Ida Chau 1993-2014. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. 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 thousands 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.
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