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Brewsterite-Sr

Big Photo

Whitesmith Mine, Strontian, North West Highlands (Argyllshire), Scotland, UK
© Elmar Lackner

Show Brewsterite-Sr Photos (21)
Formula:
(Sr,Ba,Ca)[Al
 
2
Si
 
6
O
 
16
] · 5H
 
2
O
Colour:WhiteLustre:Vitreous
Hardness:5
Name:
Named after David Brewster (1781-1868), Scottish physicist, who studied the optical properties of minerals and the element Strontium.


Zeolite Group. The strontium analogue of Brewsterite-Ba.

Classification of Brewsterite-Sr

IMA status:Approved
Strunz 8th edition ID:8/J.23-80
Nickel-Strunz 10th (pending) edition ID:9.GE.20

9 : SILICATES (Germanates)
G : Tektosilicates with zeolitic H2O; zeolite family
E : Chains of T10O20 Tetrahedra
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Type Occurrence of Brewsterite-Sr

Type Locality:Strontian, North West Highlands (Argyllshire), Scotland, UK

Physical Properties of Brewsterite-Sr

Lustre:Vitreous
Colour:White
Streak:White
Hardness (Mohs):5

Optical Data of Brewsterite-Sr

Type:Biaxial (+)
RI values: nα = 1.510 nβ = 1.512 nγ = 1.523
Maximum Birefringence:δ = 0.013

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

Chemical Properties of Brewsterite-Sr

Formula:
(Sr,Ba,Ca)[Al
 
2
Si
 
6
O
 
16
] · 5H
 
2
O
Essential elements:Al, H, O, Si, Sr
All elements listed in formula:Al, Ba, Ca, H, O, Si, Sr

Relationship of Brewsterite-Sr to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
9.GE.05Clinoptilolite-Ca
(Ca,Na,K)
 
2-3
Al
 
3
(Al,Si)
 
2
Si
 
13
O
 
36
·12H
 
2
O
9.GE.05Clinoptilolite-K
(K,Na,Ca)
 
2-3
Al
 
3
(Al,Si)
 
2
Si
 
13
O
 
36
·12H
 
2
O
9.GE.05Clinoptilolite-Na
(Na,K,Ca)
 
2-3
Al
 
3
(Al,Si)
 
2
Si
 
13
O
 
36
·12H
 
2
O
9.GE.05Heulandite-Ca
(Ca,Na)
 
2-3
Al
 
3
(Al,Si)
 
2
Si
 
13
O
 
36
·12H
 
2
O
9.GE.05Heulandite-K
(K,Na,Ca)
 
2-3
Al
 
3
(Al,Si)
 
2
Si
 
13
O
 
36
·12H
 
2
O
9.GE.05Heulandite-Na
(Na,Ca)
 
2-3
Al
 
3
(Al,Si)
 
2
Si
 
13
O
 
36
·12H
 
2
O
9.GE.05Heulandite-Sr
(Sr,Na,Ca)
 
2-3
Al
 
3
(Al,Si)
 
2
Si
 
13
O
 
36
·12H
 
2
O
9.GE.05Heulandite-Ba
(Ba,Ca,K,Na,Sr)
 
5
Al
 
9
Si
 
27
O
 
72
·22H
 
2
O
9.GE.10Stilbite-Ca
NaCa
 
4
[Al
 
9
Si
 
27
O
 
72
] · nH
 
2
O
9.GE.10Stilbite-Na
Na
 
3
Ca
 
3
[Al
 
8
Si
 
28
O
 
72
]·nH
 
2
O
9.GE.15Barrerite
(Na,K,Ca
 
0.5
)
 
2
[Al
 
2
Si
 
7
O
 
18
] · 7H
 
2
O
9.GE.15Stellerite
Ca[Al
 
2
Si
 
7
O
 
18
] · 7H
 
2
O
9.GE.20Brewsterite-Ba
(Ba,Sr)[Al
 
2
Si
 
6
O
 
16
] · 5H
 
2
O

Other Names for Brewsterite-Sr

Other Languages:
Russian:Брюстерит-Sr

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 Brewsterite-Sr

Reference List:Acta Crystallographica: B33: 2907-2910.

Coombs, D.S. et Al. (1997): Recommended nomenclature for zeolite minerals: report of the Subcommittee on Zeolites of the International Mineralogical Association, Commission on New Minerals and Mineral Names. The Canadian Mineralogist. 35, 1571-1606.

Alberti, A., M. Sacerdoti, S. Quartieri, and G. Vazzalini (1999), Heating-induced phase transformation in zeolite brewsterite: new 4- and 5-coordinated (Si,Al) sites: Physics and Chemistry of Minerals: 26: 181-186.

Sacerdoti, M., G. Vazzalini, and S. Quartieri (2000), Dehydration mechanism in brewsterite: Single crystal X-ray diffraction study: Microporous and Mesoporous Materials: 41: 107-118.

Internet Links for Brewsterite-Sr

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  • Raman and XRD data at RRUFF project
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    Localities for Brewsterite-Sr

    Hide Locality List
    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
     
    • British Columbia
      • Osoyoos Mining Division
        • Olalla
    		No reference listed
    Norway
     
    • Buskerud
      • Flesberg
        • Svene
          • Kongsberg Silver Mining District
            • Vinoren Silver Mine Field
              • Vinoren Southern Mines
    		Larsen, A.O.; Nordrum, F.S. & Erambert, M. (2003): Mineraler i brewsterittserien fra norske lokaliteter. Bergverksmuseet Skrift 25: 41-42
    Mineralogical Record: 32: 196.
        • Kongsberg Silver Mining District
          • Overberget Mine-field
    		Larsen, A.O.; Nordrum, F.S. & Erambert, M. (2003): Mineraler i brewsterittserien fra norske lokaliteter. Bergverksmuseet Skrift 25: 41-42
    • Nord-Trøndelag
      • Snåsa
    		Larsen, A.O.; Nordrum, F.S. & Erambert, M. (2003): Mineraler i brewsterittserien fra norske lokaliteter. Bergverksmuseet Skrift 25: 41-42
    • Oppland
      • Sel
        • Sjoa
    		Larsen, A.O.; Nordrum, F.S. & Erambert, M. (2003): Mineraler i brewsterittserien fra norske lokaliteter. Bergverksmuseet Skrift 25: 41-42
    UK
     
    • Scotland
      • North West Highlands (Argyllshire)
    		Brooke, H. J. (1822) Edinburgh Philosophical Journal v6 p112.
    Zeolites of the World, Rudy W. Tschernich 1992
    No reference listed
    USA
     
    • New York
      • Lewis Co.
        • Diana Township
          • Harrisville
    		Chamberlain, Steven C., Vandall T. King, Donald Cooke, George W. Robinson & Wayne Holt (1999), Minerals of the Gouverneur Talc Company No. 4 Quarry (Valentine deposit), Town of Diana, Lewis County, New York: Rocks & Minerals: 74(4): 236-249 (July, 1999).
    Mineral and/or Locality
    Google
     
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    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: 4th Nov 2009 01:01:10