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Canavesite

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Formula:
Mg
 
2
(HBO
 
3
)(CO
 
3
) · 5H
 
2
O
System:Monoclinic
Name:Named in 1978 by Giovanni Ferraris, Marinella Franchini-Angela, and Paolo Orlandini for the type locality, Vola Gera Tunnel, Brosso, Canavese District, Torino, Italy.
This page provides mineralogical data about Canavesite.

Classification of Canavesite

IMA status:Approved 1977
Strunz 8th edition ID:5/G.06-40
Nickel-Strunz 10th (pending) edition ID:6.H0.50

6 : BORATES
H : Unclassified borates
0 :
Dana 8th edition ID:17.1.8.1

17 : COMPOUND CARBONATES
1 : Miscellaneous
Hey's CIM Ref.:10.4.1

10 : Borates with other anions
4 : Borates with carbonate
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Type Occurrence of Canavesite

Type Locality:Brosso Mine, Cálea, Léssolo, Canavese District, Torino Province, Piedmont, Italy
Year of Discovery:1977

Crystallography of Canavesite

Crystal System:Monoclinic
Cell Parameters:a = 23.49Å, b = 6.16Å, c = 21.91Å
β = 114.91°
Ratio:a:b:c = 3.813 : 1 : 3.557
Unit Cell Volume:V 2,875.41 ų (Calculated from Unit Cell)

Optical Data of Canavesite

Type:Biaxial (+)
RI values: nα = 1.485 nβ = 1.494 nγ = 1.505
2V:Calculated: 86°
Maximum Birefringence:δ = 0.020

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 Canavesite

Formula:
Mg
 
2
(HBO
 
3
)(CO
 
3
) · 5H
 
2
O
Simplified for copy/paste:Mg2(HBO3)(CO3)·5H2O
Essential elements:B, C, H, Mg, O
All elements listed in formula:B, C, H, Mg, O

Relationship of Canavesite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
6.H0.10Braitschite-(Ce)
(Ca,Na
 
2
)
 
7
(Ce,La)
 
2
B
 
22
O
 
43
· 7H
 
2
O
6.H0.40Ekaterinite
Ca
 
2
(B
 
4
O
 
7
)(Cl,OH)
 
2
· 2H
 
2
O
Related Minerals - Hey's Index Grouping:

- +
10.4.2Carboborite
Ca
 
2
Mg[B(OH)
 
4
]
 
2
(CO
 
3
)
 
2
· 4H
 
2
O
10.4.3Borcarite
Ca
 
4
Mg(B
 
4
O
 
6
(OH)
 
6
)(CO
 
3
)
 
2
10.4.4Sakhaite
Ca
 
12
Mg
 
4
(BO
 
3
)
 
7
(CO
 
3
)
 
4
(OH)
 
2
Cl
10.4.5Moydite-(Y)
Y[B(OH)
 
4
](CO
 
3
)
10.4.6Gaudefroyite
Ca
 
4
Mn
3+
2-3
(BO
 
3
)
 
3
(CO
 
3
)(O,OH)
 
3

Other Names for Canavesite

Synonyms:
IMA1977-025
Other Languages:
German:Canavesit
Spanish:Canavesita

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 Canavesite

Reference List:

- +
American Mineralogist: 64: 652-653.

Canadian Mineralogist (1978): 16: 69-73.

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

Internet Links for Canavesite

Search Engines:
  • Look for Canavesite on Google
  • Look for Canavesite images on Google
  • External Links:
  • Look for Canavesite on Webmineral
  • Look for Canavesite on Athena Mineralogy
  • Look for Canavesite on Wikipedia
  • Look for Canavesite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Canavesite details from Handbook of Mineralogy (PDF)
  • Mineral Dealers:
  • Fine Minerals from Weinrich Minerals, Inc.
  • SpiriferMinerals.com - high quality low prices
  • Buy from McDougall Minerals
  • Lapis Mineral Magazin
  • Buy fine minerals and gemstones from Pala International
  • Find Canavesite on www.crystalclassics.co.uk
  • Rare and Unusual minerals at Mineralogical Research Company
  • rare and unusual minerals mainly crystallized
  • Fabre Minerals - search for Canavesite specimens
  • Mineral Classics - Worldwide Collector Quality Minerals and Gems
  • The Arkenstone - Fine Minerals
  • Wilensky Fine Minerals
  • Specimens:The following Canavesite specimens are currently listed for sale on minfind.com.

    Localities for Canavesite

    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.
    Italy
     
    • Piedmont
      • Torino Province
        • Canavese District
          • Léssolo
            • Cálea
    G. Signorelli; Can.Min.(1978) 16, 69-73
    USA
     
    • New Jersey
      • Sussex Co.
        • Franklin Mining District
          • Ogdensburg
            • Sterling Hill
    Dunn(1995):Pt4:619-620.
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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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